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Velocity Speakers

New speakers are added regularly. Please check back to see the latest updates to the agenda.

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Mike Adler
Mike Adler (The Huffington Post), @stuntbeard

Mike Adler is a generalist engineer who likes to work on tough problems. In 2013, he built a novel failover system that has drastically reduced downtime for

John Allspaw
John Allspaw (Adaptive Capacity Labs), @allspaw

John Allspaw has worked in software systems engineering and operations for twenty years in many different environments: biotech, government, online media, social networking, and e-commerce. He started out tuning parallel clusters running vehicle crash simulations for the U.S. government, and then moved on to the Internet in 1997. He built the backing infrastructure at,, Friendster, and Flickr, and Etsy. He served as SVP of Engineering and then Chief Technology Officer at Etsy, and holds an MSc in Human Factors and Systems Safety from Lund University.

Kent Alstad
Kent Alstad (Radware Canada), @kentalstad

Kent Alstad is the VP Acceleration technologies at Radware in Vancouver, Canada. Before working at Radware Kent was instrumental in authoring all of Strangeloop’s issued and pending patents. Before helping create Strangeloop, he served as CTO at IronPoint Technology. Kent also founded Eclipse Software, a Microsoft Certified Solution Provider, which he sold to Discovery Software in 2001. In more than 20 years of professional development experience, Kent has served as architect and lead developer for successful production solutions with The Active Network, ADP, Lucent, Microsoft, and NCS. “Port View,” an application Kent architected for the Port of Vancouver, was honoured as “Best Administrative System” at the 1996 Windows World Open Competition.

Bethany Andres-Beck

Beth Andres-Beck (@bethcodes) is a full-stack software engineer on the TripAdvisor Mobile Web team, working in Java, JavaScript and HTML5. She has also worked on Internationalization, hybrid apps, the TripAdvisor RESTful API, and supporting a team that grew from 6 developers to 30 developers collaborating across two locations in a few months. Her past experience in computer vision research and her degree in Costume Design come up seldom, but it is typically epic when they do.

Justin  Arbuckle

Justin has been working in financial services for over 20 years. He is a passionate proponent of the value of architectural thinking generally and the transformative role of architects in particular. In addition to his experience as a banking chief architect on three continents he has also had roles ranging from product development, venture capital investment, consulting and mobile banking. His current area of focus is DevOps, cloud API architectures and applying agile and lean startup practices to large enterprises.

Hooman Beheshti
Hooman Beheshti (Fastly)

Hooman Beheshti is VP of Technology at Fastly, where he develops web performance services for the world’s smartest CDN platform. A pioneer in the application acceleration space, Hooman helped design one of the original load balancers while at Radware and has held senior technology positions with Strangeloop Networks and Crescendo Networks. He has worked on the core technologies that make the Internet work faster for nearly 20 years and is an expert and frequent speaker on the subjects of load balancing, application performance, and content delivery networks.

Efrat Ben-David

Efrat Ben-David is a Senior SW developer at HP Software, focusing on mobile applications monitoring. she holds a B.Sc. in computer science from Ben-Gurion University Israel, and has been working as a software engineer for 14 years.

Colin Bendell

Colin is a multi disciplined expert in software development, infrastructure & operations and business strategy. With over 15 years experience, he has led the design of large scale distributed web applications in Real Estate, and Heavy Equipment. Over the last 3 years he has also managed datacenter and network Infrastructure and Operations team for a global uranium mining company. For several years, Colin also owned and operated an automotive aluminum wheel repair shop where he applied his business knowledge and operational insight.

Colin is passionate about helping customer build high performance web applications that reduce operational complexity and help increase profits. He has a deep technical base and can be found refactoring regular expressions while imagining three impossible things all before breakfast. At least 5... Read More.

Barbara Bermes

Barbara oversees the development of OANDA’s next-generation APIs. She acts as the internal and external evangelist for the API product suite as well as OANDA’s developer community. Prior to joining OANDA, Barbara worked as senior architect and performance advocate at the Canadian Broadcasting Corporation (CBC) where she focused on mobile web development and performance optimization. She holds a BSc from the Bonn-Rhein-Sieg University of Applied Sciences.

Barbara is an international speaker, a contributor of jsmanners and the organizer of the Toronto Web Performance Meetup Group.

John Berryman
John Berryman (Eventbrite), @JnBrymn

John’s first career was as an aerospace engineer, but after several years in aerospace he found that he most loved his job when he was either programming or working on a good math problem. Eventually John cut out the aircraft and satellites and started working full-time with software development, infrastructure architecture, and data science. These days John works at VividCortex building best-of-breed server performance monitoring tools.

Rajasekhar Bhogi
Rajasekhar Bhogi (eBay, Inc.)

Rajasekhar Bhogi
Manager, Software Development, Global Platform Frameworks, eBay, Inc.

Rajasekhar Bhogi drives software platform development at eBay, Inc. focusing on continuous improvement of the site speed of eBay Marketplace. He is the co-creator of eBay’s in-house real user metrics solution, in use since 2008. Raja is responsible for all aspects of tuning eBay Marketplace infrastructure with new performance technology, monitoring techniques, and reporting.

He holds a Bachelors Degree in Technology, Electronics and Communications from Nagarjuna University.

Kimberly Blessing
Kimberly Blessing (Think Brownstone, Inc.), @obiwankimberly

Kimberly Blessing has been working on the web for 20 years with organizations big (AOL, PayPal, Comcast) and small. To her, what matters most is building a strong team while also building great user experiences on the open web. She is the director of web development and technology consulting at Think Brownstone.

bethanye McKinney Blount

bethanye McKinney Blount leads infrastructure teams managing some of the most complex systems at Facebook. Those teams build and manage the underlying systems infrastructure that allows all the engineering teams to build scalable, reliable services. She is passionate about developing women in tech, from participating in diversity initiatives at Facebook to mentoring female startup founders.

Previously, she was Engineering Director at Linden Lab (makers of Second Life) where her teams were responsible for all customer-facing products. After Linden Lab, she served as Vice President of Software Engineering for EMI Group. In 2010, she co-founded MailRank, where the team developed a new approach to email productivity. MailRank was acquired by Facebook in 2011.

Buddy Brewer

Buddy Brewer likes things that go fast. He works at SOASTA where he’s responsible for mPulse, a high volume real-time real user measurement service. Prior to SOASTA, Buddy co-founded a Real User Measurement company called LogNormal which was acquired by SOASTA in 2012. Before becoming a RUM addict, Buddy spent ten years in the web performance industry building synthetic monitoring tools helping the world’s largest web sites solve their performance challenges.

Brian Bulkowski

Brian has 20-plus years experience designing, developing and tuning networking systems and high-performance Web-scale infrastructures. His career includes pioneering technical roles at Novell, Liberate and Aggregate Knowledge (now Neustar). He founded Aerospike after learning first hand, the scaling limitations of sharded MySQL systems and saw the need for a high performance database that would empower all developers, not just those at Internet giants that could afford to build their own. Brian has a B.S. degree in Mathematics and Computer Science from Brown University.

Rodrigo Campos
Rodrigo Campos (, @xinu

Rodrigo Campos is the Operations Director for in Brazil, where he’s responsible for the management and engineering groups.

Prior to this position he worked as a Product Director for UOL Host building IaaS services for the Brazilian market.

With more than 20 years of practical experience in high-demand, fast-paced environments, he has worked on several large scale projects.
Recently he was peer-voted as the #1 Infrastructure professional in Brazil

Sergey Chernyshev
Sergey Chernyshev (NY Web Performance Meetup), @sergeyche

Sergey Chernyshev works at truTV (Turner) and responsible for web technology for their highly trafficked web site ( He has more then 17 years of web technology experience and active open source developer and web technology enthusiast.

Sergey is an organizer of New York Web Performance Meetup, first local Web Performance group that meets monthly to discuss performance-related topics.

He’s creator and primary developer of ShowSlow, an open source tool that helps monitor YSlow grades, Page Speed scores and various other website performance metrics over time.

Sergey blogs about performance on ShowSlow blog

Sergey’s web site

Jan Chong
Jan Chong (Twitter), @lessachu

Jan Chong holds a BS and MS in Computer Science from Stanford University. She has Ph.D from the Management Science and Engineering Department, also from Stanford. She is currently the Engineering Manager for the Twitter for Android team. Prior to joining Twitter, Jan ran client and server software development at OnLive.

jay compton
jay compton (Healthagen, an Aetna company), @boost09

Software and development operations manager and leader with 15 years of software and system engineering experience. Specialties include building web scale applications and operations for large-scale volume. Software engineering background includes agile/lean development methods such as scrum/kanban/XP/pair programming and continuous integration/delivery. Development and web operations, including datacenter and cloud operations, high availability/disaster recovery/business continuity planning, and degradation prediction/prevention. Cost-effective, sustainable and adaptive system design with a focus on the performance of the entire system.

- Adaptive, distributed system and deployment engineering
- Web and mobile scale operations
- Agile and lean product development
- Cross-functional engineering management and leadership
- Bringing the whole system together to function as a singular computing unit and making sure it runs well
... Read More.

Cliff Crocker

Cliff Crocker is a product line director at Akamai Technologies, where he spends his time building product strategy for performance analytics. Previously, he was vice president of product at SOASTA and engineering leader for the performance, reliability, and site analytics initiatives at @WalmartLabs. Cliff is an active contributor in the web performance community, evangelizing the importance of speed as it relates to user behavior and ultimately business ROI. In his spare time, he enjoys skiing in the mountains of Colorado, where he resides with his wife and two boys.

Ryn Daniels
Ryn Daniels (HashiCorp), @rynchantress

Ryn Daniels is a staff infrastructure software engineer who got their start in programming with TI-80 calculators back when GeoCities was still cool. Their work has focused on infrastructure operability, sustainable on-call practices, and the design of effective and empathetic engineering cultures. They are the co-author of O’Reilly’s Effective DevOps and have spoken at numerous industry conferences on devops engineering and culture topics. Ryn lives in Berlin, Germany with a perfectly reasonable number of cats and in their spare time can often be found powerlifting, playing cello, or handcrafting knitted server koozies for the data center.

Mehdi Daoudi
Mehdi Daoudi (Catchpoint), @mdaoudi

Mehdi is the founder and CEO of Catchpoint, the fastest-growing Web Performance Monitoring Solution. The Catchpoint vision is to provide the best IT analytics & intelligence to help companies improve their end user performance and keep an eye on their infrastructure and vendors.

Before Catchpoint, Mehdi spent 10+ years at DoubleClick and Google, where he was responsible for Quality of Services, buying, building, deploying and using various internal and external monitoring solutions to keep an eye on the DART infrastructure delivering billions of transactions a day using thousands of servers, routers, and various other web performance systems.

Jennifer Davis
Jennifer Davis (Microsoft), @sigje

Jennifer Davis is a cloud operations advocate at Microsoft. Previously, she was a principal site reliability engineer at RealSelf and developed cookbooks to simplify building and managing infrastructure at Chef. Jennifer is the coauthor of Effective DevOps and speaks about DevOps, tech culture, and monitoring. She also gives tutorials on a variety of technical topics. When she’s not working, she enjoys learning to make things and spending quality time with her family.

Mikey Dickerson
Mikey Dickerson (Federal Government | United States Digital Services Team)

In 2013, Mikey Dickerson joined what became known as the “ad hoc” team, tasked with rescuing after its failed launch on October 1. In August 2014, President Obama established the United States Digital Service to see if the strategy that succeeded at pulling out of the fire could be applied to other government problems and appointed Mikey to serve as the administrator. Now two years old and employing about 150 people spanning a network of federal agencies, the US Digital Service has taken on immigration, education, veterans benefits, and health data interoperability and helped agencies build effective government services and improve IT procurements by focusing on industry best practices and agile methodology, ultimately driving change in the largest institution in history. Prior to... Read More.

Rob Dickinson
Rob Dickinson (, @robfromboulder

Over the last 20 years, Rob has led development of monitoring and performance solutions at Xaffire, Dell Software and Intel. He founded to strike a devops-friendly balance between deep API monitoring and the latest privacy and security standards. When Rob isn’t geeking out, he’s camping and snowboarding with his wife and three kids in Colorado.

Renee DiResta
Renee DiResta (New Knowledge), @noupside

Renee DiResta is Director of Research at cybersecurity company New Knowledge and a Mozilla Fellow in Media, Misinformation, and Trust. She investigates the spread of disinformation and malign narratives across social networks, and has advised the Congress, the State Department, and senior executives on how to understand and respond to influence operations.

Grant Ellis
Grant Ellis (Instart Logic)

Grant is a passionate web performance evangelist. He joined Instart Logic in late 2013 as a senior performance architect. To date, Grant has spent eight years in the web performance space, working at Instart Logic, Strangeloop Networks, and at Akamai Technologies. For his last three years at Akamai, Grant served as an enterprise architect, consulting on all aspects of web performance, scale, fault-tolerance, and security. He was also responsible for custom solution design, complicated integrations, and technical pre-sales. Before Akamai, Grant was a consultant and analyst with Accenture. He holds a B.S. degree in computer science, and a minor in mathematical modeling from Trinity College in Hartford.

Adam Ernst
Adam Ernst (Facebook)

As an engineer on the iOS team at Facebook New York, Adam Ernst helped relaunch the Facebook iOS app to use native code. Today he works on News Feed for iOS with a focus on building tools for other developers. Before joining Facebook, Adam was an independent iOS developer and created the iTrans series of mass transit apps. He studied computer science at Princeton University.

Daniel Espeset

Daniel Espeset is a Senior Software Engineer on the Performance team at Etsy. He enjoys hacking on build processes, improving front-end architecture and pursuing moon-shot experiments in code instrumentation and static analysis. If he were granted three wishes he would ask for all the CDNs to support SPDY (you know who you are), Safari to implement the Navigation Timing API and unlimited future wishes (obv). He lives in Brooklyn with his wife Garity and their two cats, Fannie and Cece.

Shane Evans
Shane Evans (Hewlett-Packard), @shaneevanslr

Shane Evans (@ShaneEvansLR) is a career performance engineer, ScrumMaster, and current product manager for the industry-leading HP LoadRunner performance testing tool. With twelve years of hands-on experience in Enterprise IT, ranging from technical support and quality assurance to performance management and engineering, Shane has helped build CoEs and deliver high-performing business applications. Since joining HP in 2009, he has helped hundreds of customers worldwide meet their application performance objectives. Shane is an advocate for education and mentoring over tools and process. He moved from Vancouver, BC, Canada, to California in 2012—and does not miss the rain. 

Tammy Everts
Tammy Everts (SpeedCurve), @tameverts

As a senior researcher, writer, and performance evangelist at Radware, I’ve spent the past several years researching the technical, business, and human sides of web/application performance, and sharing the findings via countless blog posts, presentations, case studies, articles, reports, and infographics. Before joining Radware, I was research lead and senior writer at Strangeloop Networks (which was acquired by Radware in early 2013).

I blog at both the Radware blog and Web Performance Today.

Matteo Figus
Matteo Figus (OpenTable), @matteofigus

I’ve been writing software for the last 15 years, at least half as a professional. Now I am based in London and I work at OpenTable, where I like to share my time between writing software, testing it, deploying it properly, and monitoring it. Main interests are node.js, C#, the open-source world, and the dev-ops movement.

Max Firtman
Max Firtman (ITMaster Professional Training), @firt

Max Firtman is a mobile+web developer, trainer, speaker and writer. He wrote many books, including “Programming the Mobile Web” (available in second edition) and “jQuery Mobile: Up and Running” published by O’Reilly Media.

He is a well-known professional in the mobile web community blogging about mobile web platforms on and keeping updated the compatibility tables at

He is a frequent speaker at conferences, including QCon, Mobilism, OSCON, Velocity Conference, Fluent, Google Developer Day, JSConf, GOTO, AdobeCamp and many other events around the world.

He has received different recognitions, including Adobe Community Professional, Microsoft IE User Agent, Nokia Developer Champion and BlackBerry Elite for this work in the mobile web community.

He also teaches mobile HTML5 and performance trainings for top companies... Read More.

Stephen Fishman

Stephen Fishman has been working with enterprises both as an employee and a consultant for more than 20 years. Stephen has studied with and practiced alongside many industry leading technologists, business strategists and user experience professionals. Stephen is currently Director of Consumer Platforms for, writes a weekly column on and is working with his editor to complete his first book on helping IT professionals to learn how to create large change in medium to large enterprises.

Specialties: Program director, innovation and change evangelist, platform management, writer, software architect, information architect, site developer, creative concept generation, product management, development team lead, project management, jad facilitation, user research, usability assessments, gathering needs assessments, high level technical designs, generating technical and business specifications, designing work-plans, resource... Read More.

Camille Fournier
Camille Fournier (Independent), @skamille

Camille Fournier is the former head of engineering at Rent the Runway. She was previously a vice president at Goldman Sachs. Camille is an Apache ZooKeeper committer and PMC member and a Dropwizard framework PMC member.

Steve Fox
Steve Fox (DELL)

Steve is Product Manager for Dell Foglight. His responsibilities at Dell are identifying key customer requirements and direction for Foglight, with specific focus on end user monitoring, mobile, and analytics. Steve has more than 20 years of industry experience across aerospace, telecommunications, search, natural language, and intelligent monitoring technology spaces, holding positions as a software engineer, system consultant, entrepreneur, and product manager. Steve holds a B.S. degree in electrical engineering from the University of Texas at Arlington.

Ryan Frantz

Ryan is a Senior Operations Engineer at Etsy. He loves to solve puzzles, play with his kids’ Legos, and learn new things. Like the harmonica.

Marc Gaffan
Marc Gaffan (Incapsula)

Prior to founding Incapsula, Marc was Director of Product Marketing at RSA, EMC’s security division, Responsible for strategy and go to market activities of a $500M IT Security product portfolio.

Before that, Marc was the Director of Marketing for the Consumer Solutions Business Unit at RSA. While at RSA, Marc presented at the US Congress, FDIC and Federal Trade Commission on cyber security and identity theft topics.

Marc Holds a double major B.A. in Computer Science and Economics from Tel Aviv University and an M.B.A. from Recanati Graduate School of Business Administration.

Tom Gerhard
Tom Gerhard (, @TomGerhard

Tom Gerhard (@TomGerhard) is VP, Performance Engineering at, where he is a key advocate for front-end WPO R&D initiatives, among other duties. His interest in front-end performance optimization was sparked “way back when” by a site that rendered slowly in IE 4, and has continued to grow since then.

Dana Gilboa
Dana Gilboa (HP Software)

Dana graduated from Technion (Israel institute of technology) in 2003. She has 11 years of experience, 9 of them in the APM area – first as a developer (Java, C++) then as a manager (activity, team, section) and eventually as functional architect.

She is currently the chief functional architect of APM Apps RnD in HP Software, a group developing real user monitoring and deep dive diagnostics tools.

Samantha Grumdahl
Samantha Grumdahl (University of Minnesota), @zruty

Samantha works as a network and systems administrator for the College of Science and Engineering at the University of Minnesota. Providing IT support for a variety of academic departments and supporting researchers from all over the world allows her to bring a unique multicultural perspective. Her volunteer efforts are focused on increasing interest in the STEM fields, especially among women and minorities.

Harold Hannon
Harold Hannon (SoftLayer)

Harold Hannon has been working in the field of software development as both an Architect and Developer for over 15 years, with a focus on workflow, integration and distributed systems. He is currently a Sr. Software Architect at SoftLayer Technologies working within their Product Innovation team. Harold has a passion for leveraging open source solutions to bring real value to the Enterprise space, and has implemented open source solutions with many companies across the globe. Harold is also active in mobile application development, with multiple published applications.

Lara Hogan
Lara Hogan (Wherewithall), @lara_hogan

Lara Swanson is an Engineering Manager at Etsy. She champions page load time, experiment-driven design, and delivering a consistent experience to screens of all sizes. Lara is currently writing a book called Designing for Performance which aims to empower designers to understand their impact on page load time.

Lindsay Holmwood
Lindsay Holmwood (Australian Government Digital Transformation Office), @auxesis

Lindsay Holmwood is an engineering manager living in the Australian Blue Mountains. He runs a distributed infracoders team at Bulletproof that builds hassle free tools, and was responsible for ensuring 100% uptime for the 2010 + 2011 + 2012 Movember campaigns.

A sucker for making better monitoring tools, he has authored Flapjack, cucumber-nagios, and Visage, in between travelling and speaking at international conferences.

In his spare time, Lindsay organises the monthly Sydney DevOps Meetups. He also won third place at the 1996 Sydney Royal Easter Show LEGO building competition.

Ben Hughes is a Software Engineer at Airbnb focusing on reliability and scalability. He was previously a cofounder of NabeWise, a neighborhood information startup that was acquired by Airbnb in 2012.

Dean Hume
Dean Hume (Settled), @deanohume

Dean Hume is the author of Fast ASP.Net Websites and is passionate about web performance.
He is also a full-time developer working in the trenches on front line web applications. He regularly writes articles based on software development on his blog at

Avishai Ish-Shalom

Avishai Ish-Shalom is a co-founder of Fewbytes, an Israel based consultancy firm, with almost a decade of experience in IT systems and web operations. Avishai is an Open Source enthusiast and a complete automation geek. As a consultant, Avishai helps startups and enterprises build better systems and embrace the DevOps spirit.

David Josephsen

As the developer evangelist for Librato, Dave Josephsen hacks on tools and documentation, writes about statistics, systems monitoring, alerting, metrics collection and visualization, and generally does anything he can to help engineers and developers close the feedback loop in their systems. He’s written books for Prentice Hall and O’Reilly, speaks shell, Go, C, Python, Perl and a little bit of Spanish (in that order), and has never lost a game of Calvinball.

Tim Kadlec
Tim Kadlec (Independent), @tkadlec

Tim is an independent developer and consultant who helps organizations with problems at the intersection of performance and responsive design

He is the author of Implementing Responsive Design: Building sites for an anywhere, everywhere web (New Riders, 2012) and was a contributing author for Smashing Book #4: New Perspectives on Web Design (Smashing Magazine, 2013) and Web Performance Daybook Volume 2 (O’Reilly, 2012). He writes sporadically at and you can find him sharing his thoughts in a briefer format on Twitter at @tkadlec.

Nassim Kammah

Nassim Kammah is a Software Engineer on the Test Automation Team at Etsy. Nassim has several years experience building and maintaining Continuous Integration environments for various platforms and languages. Lately, he has been focusing on building the mobile automation infrastructure for the Android and iOS apps at Etsy.

Sean Kane
Sean Kane (New Relic), @spkane

I am a long-time system administrator and operations engineer who has lived in places ranging from Alaska to Pakistan. I graduated from the Barnum & Bailey Clown College and completed two college internships with the CIA before going back to “real” school and getting 2 degrees.

In my spare time I enjoy photography and sharing with my children the endless wonders of science, the great outdoors, and rappelling down skyscrapers.

Hari Kannan (HP Helion OpenStack R&D)

Hari Kannan is a Senior Manager with HP Helion R&D. His team is responsible for enabling beta customers and building reference architectures. Previously, Hari was a Product Manager for various products including HP Helion OpenStack, HP Cloud Service Automation and Citrix CloudStack. Hari works out of HP’s Sunnyvale campus and is a graduate of UC Berkeley’s Haas School of Business and has a MS from Santa Clara University.

Nikolas Katsimpra
Nikolas Katsimpra (Columbia University)

Nikolas Katsimpras lectures at Columbia University’s master program in Negotiation and Conflict Resolution, and is a lab instructor at the School of International and Public Affairs. In 2012, he became a fellow at the Advanced Consortium for Cooperation, Conflict and Complexity, specializing in systems thinking-based methodologies for understanding protracted, intractable conflicts. He did research in Burma/ Myanmar, one of the longest internal conflicts in modern history, on the prospects for sustainable peace. He is a former officer of the Hellenic Navy, and an award recipient by the International Institute for Humanitarian Law. Nikolas’ passion for technology and interdisciplinarity have led him to focus his work more on breaking down organizational silos to tackle complex problems. He is a consultant on organizational management, focusing on organizational... Read More.

Arun Kejariwal

Arun is currently a Staff Capacity Engineer at Twitter where he works on research and development of novel techniques to improve the accuracy of capacity models and demand forecasts. Prior to joining Twitter, @arun_kejariwal worked on research and development of practical and statistically rigorous methodologies to deliver high performance, availability and scalability in large scale distributed clusters. Some of the techniques developed have been published in peer-reviewed international conferences/journals.

@arun_kejariwal received his Bachelor’s degree in EE from IIT Delhi and doctorate in CS from UCI.

Oded Keret
Oded Keret (HP Software)

Oded is currently performing the role of a Product Owner for the HP TruClient and StormRunner R&D teams. he is a TAU Software Engineering graduate with five years of coding experience, many of them spent in the LoadRunner R&D team. Oded is also the founder of the Board Games in Tel Aviv Meetup group, and Co-Founder of The Party™ team.

Tobi Knaup
Tobi Knaup (Mesosphere), @superguenter

Tobi is the CTO and Co-Founder of Mesosphere, a startup that is building a data center operating system based on Apache Mesos, to support the next generation of large scale distributed applications.
He was one of the first engineers and engineering leaders at Airbnb. At Airbnb, he wrote large parts of the infrastructure including the search and fraud prediction services. He helped scale the site to millions of users and build a world class engineering team. Tobi is the main author of Marathon, an Apache Mesos framework for managing long-running services.

Eitan Konigsburg
Eitan Konigsburg (The New York Times Company)

Eitan is a Front-end Software Architect at The New York Times and has been the performance champion there for the last five years.

Bridget Kromhout

Bridget Kromhout is an operations engineer at DramaFever, the largest streaming video site for international content. She’s been paying the bills with Unix sysadmin work since the last time ‘flannel shirt over babydoll dress’ was a trendy look. Her CS degree emphasis was in theory, but she now deals with the concrete (if ‘cloud’ can be considered tangible). She likes finicky wide-column data stores, stats-driven monitoring, formal grammars, bicycle-powered camping, and butchering pumpkins for home canning.

Piyush Kumar
Piyush Kumar (Twitter Inc.)

Piyush is a part of the capacity planning team at Twitter. His interest lies in applying machine learning and statistical techniques to solve technical problems. He is a graduate of School of Computer Science, Carnegie Mellon University, Pittsburgh, PA where he emphasized on machine learning. In his free time he enjoys hiking, playing music, traveling and cooking.

Dave Lemaire is Sr. Director of Technology Operations at Dyn. He is responsible for Dyn’s NOC, Monitoring and Analytics team, and help desk.

Jennifer Leong

Jen Leong has been in the mobile web industry for almost as long as there has been a mobile web. As a web developer and front- and middle-tier dev lead at Upoc, one of the first mobile-based social networking platforms, she dealt with issues of scale, simultaneity, and asynchonicity. After kicking around in the trenches of mobile web for almost a decade, she joined AT&T in their developer program, working on various mobile web related projects, including building SDKs and working on web standards. Most recently, she was an advocate for improved HTML5 support in web browsers. She has recently joined AT&T’s Application Resource Optimizer (ARO) team, and is excited to join her previous experience with mobile web to performance enhancement. In past lives... Read More.

Steve Lerner
Steve Lerner (eBay, Inc.), @lerner

Steve Lerner leads network engineering, operations, and strategy for website/mobile app performance and scalability at eBay, Inc. Additionally he coordinates R&D, testing, support and training with engineering groups that utilize CDN services across eBay’s family of companies

Steve has managed large-scale technology operations and strategy since 1997. He joined eBay from RampRate, a leading IT infrastructure sourcing and advisory firm, where he led strategy and vendor negotiation engagements for CDN, colocation, network, and digital media supply chain clients.

He was Vice President of Operations and Media Technology at Speedera Networks CDN, where he oversaw Speedera’s entire network- comprising 80 colocation sites, procurement and 24×7 NOC. Speedera offered complete web and media solutions and was acquired by Akamai Technologies Inc. in 2005.

... Read More.
Tom Limoncelli
Tom Limoncelli (, @yesthattom

Tom is an internationally recognized author, speaker, and system administrator. His best known books include Time Management for System Administrators (OReilly) and The Practice of System and Network Administration (Addison-Wesley). In 2005 he received the LISA Outstanding Achievement Award. He works in New York City at Stack Exchange, home of and Previously he’s worked at small and large companies including Google, Bell Labs / Lucent, AT&T. He blogs at His new book, “The Practice of Cloud Administration” is due out in September 2014.

Hossein Lotfi
Hossein Lotfi (Google)

Hossein Lotfi is Director of Performance Engineering at Verizon EdgeCast. He leads engineering teams that are focused on finding ways to make CDN infrastructure faster.

Doug McCausland
Doug McCausland (AT&T Global Business Services)

Doug McCausland directs product marketing for AT&T Content Delivery Network services. In this role, Doug has helped AT&T build a major new business delivering optimization, acceleration, and security services for the Web, and he works to help the company take a leading role in expanding the definition of what a CDN can and should offer in areas like web security, hosting, cloud, e-commerce, digital media, and application services.

Before joining AT&T in 2012, Doug served as Director of Technology and Global IT for multiple Omnicom interactive advertising agencies, including and Signal to Noise, and Director of Digital Services for TBWA Worldwide.

Patrick Meenan

Patrick Meenan has been working on web performance in one form or another for the last 12 years and is currently working on Chrome and general web performance at Google. He created the popular open-source WebPagetest web performance measurement tool, runs the free instance of it at and can frequently be found in the forums helping site owners understand and improve their website performance.

Steve Miller-Jones
Steve Miller-Jones (Limelight Networks), @llnw

Steve has worked in the streaming and content delivery networking (CDN) industry since 2008 and has a strong software project management and web-application programming background. As Director, Product Management for Limelight Networks, he enables Limelight to understand how its services perform from the outside in, and from the inside out. Using “Real User Measurement” data, alongside synthetic and system-wide monitoring services, he leads development of products that ensure consistent high-quality content delivery worldwide. Prior to joining Limelight, he was COO of Global-MIX, which won the Streaming Media “Best CDN in Europe” award in 2009.

Destiny Montague

Destiny Montague is an Engineer in the IT Department at Etsy. When not solving problems at Etsy, she plays several musical projects including Feathers and her own solo project, Carl Sagan.

Norm Morrison

Norm Morrison is responsible for site reliability/performance strategy at Radial. Through the efforts of his extended team, Radial maintains an industry-leading level of availability and performance for the e-commerce properties hosted on the Radial platforms. Norm joined Radial in 2001 and has held various positions leading up to his current role including leading test automation, setting technology direction in the architecture organization, and heading up the Unix administration team during Radial’s early years of rapid growth. Radial has been known by many names over the years, starting with Global Sports in 1999, then GSI Commerce which was acquired by eBay Inc. in 2011, became eBay Enterprise in 2013 and was divested by eBay in 2015. In 2016 the company was renamed Radial.

Norm earned... Read More.

Courtney Nash

Courtney manages all Velocity-related content for O’Reilly Media. An erstwhile academic neuroscientist, she is still fascinated by the brain and how people learn just about anything. She’s been known to teach people how to salsa dance, conduct psychology experiments, or even get air on a mountain bike. When not working on books, Courtney can be found biking, hiking, skiing, and photographing the Cascade mountains near her home in Bellingham, Washington.

Amichai Nitsan
Amichai Nitsan (Hewlett Packard Enterprise)

Amichai Nitsan is a Senior Architect at HP Software, focusing on mobile applications and technologies. Amichai is a freak of innovations and new ideas and runs several internal “start up” projects inside HP Software. Over the years Amichai has filed over 30 patents. He holds a B.Sc. and M.Sc. in computer science from the Hebrew University.

Mark Nottingham

Mark Nottingham has helped develop Web technologies like Atom and HTTP for more than ten years.

Starting as a system administrator and Webmaster in 1995 (back when that title still got comments at parties), he’s become a recognised expert on the HTTP protocol, as well as Web caching and HTTP “APIs”.

This led him to become Chair of the IETF HTTPbis Working Group, an effort to clean up HTTP/1.1 and then develop HTTP/2.0.

Along the way, he’s been involved in several other standards efforts, holding positions in the IETF and W3C and writing specifications like Atom and Web Linking, as well as a fair amount of code.

Brian Nuszkowski
Brian Nuszkowski (Duo Security), @nuszkowski

Brian previously was a Site Reliability Engineer for Domino’s Pizza, a worldwide technology company that just happens to sell pizza. He is currently working as a DevOps Engineer at Duo Security, helping to bring two-factor authentication to the world.

Tim O'Reilly
Tim O'Reilly (O'Reilly Media, Inc.), @timoreilly

Tim has a history of convening conversations that reshape the industry. In 1998, he organized the meeting where the term “open source software” was agreed on, and helped the business world understand its importance. In 2004, with the Web 2.0 Summit, he defined how “Web 2.0” represented not only the resurgence of the web after the dot com bust, but a new model for the computer industry, based on big data, collective intelligence, and the internet as a platform. In 2009, with his “Gov 2.0 Summit,” he framed a conversation about the modernization of government technology that has shaped policy and spawned initiatives at the Federal, State, and local level, and around the world. He has now turned his attention to implications of the on-demand... Read More.

Robin Osborne
Robin Osborne (Otomotech), @rposbo

Robin Osborne is a freelance nerd, lover of shiny new tech and connecting solid, established tech for big wins. A lover of all things tech performance related, he’s fascinated by the various approaches teams take to improve their existing systems, or setting up new systems from scratch. When not plugging away with new technologies, he can be found training developers, pitching for conferences, and trying to write a book or two. Robin speaks, blogs, and writes at

When there’s a spare moment, he can be found teaching his daughters to code, cycling for fun and charity, and hunting down London’s best coffee – one café at a time.

Zoran Perkov
Zoran Perkov (IEX Group)

Zoran is currently the Head of Technology Operations at IEX Group where he helps in ensuring that the trading system does not blow up in the middle of the day. He was previously Global Head of Technical Operations at NASDAQ OMX where his teams were responsible for all trading, clearing, settlement and exchange technology systems. Prior to this role, Zoran was part of the INET team and led the US NASDAQ Operations Center through many system implementations including the transition to the NASDAQ Stock Market. He has also previously held various technical positions ranging from system administration to networking.

Rob Peters
Rob Peters (EdgeCast Networks), @rjpcal

Rob Peters is Chief Architect at Verizon EdgeCast, where he was one of the early members of the engineering group. Peters currently leads teams that work with EdgeCast’s core http cache/proxy engine and its surrounding infrastructure ecosystem of software and hardware. He enjoys thinking about deployment methodologies and looking at graphs and grids full of colorful numbers, and is often mistaken for a subversion and perl fanboy.

Prior to joining EdgeCast in 2008, Rob completed a Ph.D. in Computation & Neural Systems from the California Institute of Technology and spent several years in post-doctoral work at the University of Southern California building biologically-inspired computer vision software. He will be happy to show you a live demo of these algorithms that still manage to run on... Read More.

J. Paul Reed
J. Paul Reed (Release Engineering Approaches), @jpaulreed

DevOps and release engineering reporter for O’Reilly; host of The Ship Show

Alois Reitbauer

Alois is Chief Evangelist of ruxit. He is fanatic about monitoring, DevOps and application performance. He spent most of his professional career in building monitoring tools and speeding up applications. He is a regular conference speaker, blogger, book author and Sushi maniak

Jesse Reynolds
Jesse Reynolds (Bulletproof Networks), @jessereynolds

Jesse is an infrastructure and web operations engineer, co-founding one of Australia’s first web development and hosting agencies, Virtual Artists, in 1993. He has since worked with Fujitsu Australia, the University of New South Wales, and Carbon Planet.

Marketing is not one of Jesse’s strong suits. He co-authored an awesome web-based CMS before CMSs were a thing, and failed entirely to capitalise on it. Jesse also created the VA RoboCam, an all-weather, democratic online surveillance camera that failed to bring about a backlash against public video surveillance, but did allow radio presenters in Canada to buy beers for punters in Adelaide, Australia.

One of Jesse’s shorter contracts ended not long after his wife found him lying on the couch, after an 18 hour day,... Read More.

Emily Riley
Emily Riley (Ghostery Enterprise)

Emily drives Ghostery, Inc.’s enterprise marketing and company database operations. Most recently Emily was VP, Product and Marketing at Audience Science where she led the company’s repositioning from an ad network into an industry-leading data management and media buying platform. Prior to that, Emily worked as an Analyst and VP Research Director at Forrester Research and as an Analyst at Jupiter Research, Emily delivered insightful guidance to global Fortune 100 brands as well as major media companies, agencies and technology companies. Emily’s background also includes running digital marketing for Martha Stewart Living Omnimedia, where she helped re-launch its web site as an advertising-based content site. She started her career as a delivery analyst at where she honed her quantitative understanding of the digital marketplace.... Read More.

Alex Russell

Alex Russell works on Chrome and the broader web platform at Google San Francisco. He serves on the W3C Technical Architecture group and TC39, the standards body for JavaScript.

Baron Schwartz
Baron Schwartz (VividCortex), @xaprb

Baron Schwartz is the founder and CTO of VividCortex, the best way to see what your production database servers are doing. Baron has written a lot of open source software and several books, including High Performance MySQL. He’s focused his career on learning and teaching about performance and observability of systems generally, including the view that teams are systems and culture influences their performance, and databases specifically.

Anna Shipman
Anna Shipman (Government Digital Service), @annashipman

Anna Shipman is Lead Infrastructure Developer at the Government Digital Service. She does development and web operations engineering for the GOV.UK website. At the moment she uses Puppet, Ruby, Python, Perl and other web technologies, although in the not-too-distant past she worked mainly in Java and the JEE stack.

She has previously spoken on topics as diverse as data visualization in JavaScript, why agile might not be the best solution, and her leaky roof.

She blogs here and is always up for a game of pool.

Steve Skroce
Steve Skroce (CVS)

Steve brings 20 years of digital experience to the table, spending most of his time in the Boston advertising community. Whether he’s wearing his developer hat, SEO hat, or web performance hat, Steve manages to Make More Happen with the opportunity in front of him. As part of the Site Operations team at CVS he seeks to improve the customer experience by reducing page load times and delivering information to customers faster.

doug small
doug small (Intuit)

TurboTax Online Staff Systems Quality Engineer at Intuit

Did a PhD in philosophy, then started to do technology in government. Been working as an infrastructure product manager in HMRC for 8 months, led a team of 10 engineers to build HMRC’s first web application platform on cloud infrastructure in that time. Aiming to grow it to serve millions of UK taxpayers.

Steve Souders
Steve Souders (SpeedCurve), @souders

Steve is Chief Performance Officer at Fastly developing web performance services. He previously served as Google’s Head Performance Engineer and Chief Performance Yahoo!. Prior to that Steve worked at General Magic, WhoWhere?, and Lycos, and co-founded Helix Systems and CoolSync.

Steve is the author of High Performance Web Sites and Even Faster Web Sites.
He is the creator of many performance tools and services including YSlow,the HTTP Archive,Cuzillion, Jdrop, ControlJS, and Browserscope.

He serves as co-chair of Velocity, the web performance and operations conference from O’Reilly, and is co-founder of the Firebug Working Group. He taught CS193H: High Performance Web Sites at Stanford.

Jonah Stiennon
Jonah Stiennon (Sauce Labs)

Jonah Stiennon is a software developer on the Ecosystems and Integrations team at Sauce Labs, and a contributor to Appium . As far as he knows, he is the only Node.js developer who was paid in Bitcoin and issued invoices as JSON documents.

Jim Stogdill

Until recently Jim Stogdill headed up O’Reilly’s Radar and Strata businesses. Now he’s on a long awaited sabbatical but still thinking about technology’s impact on organizations. In a previous life he traveled the world with the U.S. Navy. Unfortunately from his vantage point it all looked like the inside of a submarine. He spends his free time hacking silver halides with decidedly low-tech gear.

Nicole Sullivan
Nicole Sullivan (Stubbornella), @stubbornella

Nicole is an evangelist, front-end performance consultant, CSS Ninja, and author. She started the Object-Oriented CSS open source project, which answers the question: how do you scale CSS for millions of visitors or thousands of pages? She also consulted with the W3C for their beta redesign, and is the co-creator of, an image optimization service in the cloud. She is passionate about CSS, web standards, and scalable front-end architecture for large commercial websites.

She co-authored Even Faster Websites and blogs at

Jeff Sussna
Jeff Sussna (Ingineering.IT), @jeffsussna

Jeff Sussna is Founder and Principal of Ingineering.IT, a boutique consulting firm that facilitates Adaptive IT through teaching, coaching, and strategic design. Jeff has more than 20 years of IT experience, and has led high-performance teams across the Dev/QA/Ops spectrum. He is a highly sought-after speaker, and was recognized as a Top 50 Must-Read IT Blogger for 2012 and 2013 by BizTech Magazine. His interests focus on the intersection of development, operations, design, and business.

Jon Tai (Airbnb), @jtai

Jon Tai is a Software Engineer on the Application Reliability team at Airbnb. Beyond scaling software systems, he works to build tooling and evangelize best practices among the engineering team. Prior to Airbnb, Jon was an engineer at IGN Entertainment, where he helped re-architect and scale out IGN’s media platform.

Philip Tellis

Philip Tellis is a geek who likes to make the computer do his work for him. As Chief Architect at SOASTA, he analyses the impact of various design decisions on web application performance, scalability and security. He is also the lead developer of “boomerang” — a JavaScript based web performance testing tool.

In his spare time, Philip enjoys cycling, reading, cooking and learning spoken languages.

Philip has spoken at several conferences in the past, including FOSS.IN, FREED.IN, Ubuntulive, Linux Symposium, PHP Quebec, ConFoo, FOSDEM, IPC, WebDU, Velocity and JSConf.

Tobin Titus
Tobin Titus (Microsoft)

Tobin Titus is a performance program manager on the Microsoft Internet Explorer team. Tobin has worked at Microsoft for 8 years on both sides of the HTTP conversation—spending the first part of his term on Internet Information Server and the latter on Internet Explorer. Before working at Microsoft Tobin was a consultant, helping to design and develop scalable internet applications for financial institutions and state government entities. Tobin has authored books on programming with Microsoft tools and technologies and holds patents on 3D virtual-world innovations.

Joan Touzet
Joan Touzet (Cloudant, an IBM Company), @wohali

Joan Touzet has been using Apache CouchDB since 2008. She is now a committer and PMC member for Apache CouchDB, and acts as Senior Software Development Manager at Cloudant, an IBM Company.

Her major effort for 2014 is coordinating the merge of Cloudant’s BigCouch branch back into CouchDB towards a CouchDB 2.0 release. Recently, Joan has given talks at CloudantCON 2014, CouchDB Conf 2013, ChefConf 2013 and PyCon Canada 2012, all of which are viewable on YouTube.

In her spare time, Joan builds and repairs motorcycles, pilots small aircraft, and composes music for video game soundtracks.

Mandi Walls

Mandi Walls is Technical Practice Manager at Chef. For Chef, she travels the world helping organizations increase their effectiveness using configuration management and modernizing IT practices. Prior to joining Chef, she ran large web properties for AOL, including, and Moviefone. Mandi has a Master’s degree in Computer Science from GWU and an MBA from UNC Kenan-Flagler. She is a regular speaker at technical conferences and is the author of “Building a DevOps Culture”, published by O’Reilly.

Yoav Weiss

Yoav is a Web performance and browser internals specialist, working on responsive design Web performance, image compression and more. He recently implemented the srcset attribute in Blink.

He is an
RICG technical lead, a Blink & WebKit contributor and a bass player.

You can follow his rants on Twitter or have a peek at his latest prototypes on Github.

John Willis

John Willis is the VP of Customer Enablement for Stateless Networks. Willis, a 30-year systems management veteran, joined Stateless Networks from Dell where he was Chief DevOps evangelist. Willis, a noted expert on agile philosophies in systems management, came to Dell as part of their Enstratius acquisition. At Enstratius, Willis was the VP of Customer Enablement responsible for product support and services for the multi-cloud management platform. During his career, he has held positions at Opscode and also founded Gulf Breeze Software, an award-winning IBM business partner specializing in deploying Tivoli technology for the enterprise. Willis has authored six IBM Redbooks for IBM on enterprise systems management and was the founder and chief architect at Chain Bridge Systems. He is also co... Read More.

David Woods
David Woods (Ohio State University SNAFUcatchers), @ddwoods2

David Woods is a professor at the Ohio State University, where he is the lead for the Initiative on Complexity in Natural, Social, and Engineered Systems and the codirector of Ohio State University’s Cognitive Systems Engineering Laboratory. David is a former president of both the Resilience Engineering Association and the Human Factors and Ergonomics Society.

John Yi
John Yi (Rackspace), @jyidiego

I started in the IT Automation space working for Opsware and became fascinated with the automation of infrastructure. When Opsware was acquired by HP, I found a home with the good folks at WebMD and worked on automating their infrastructure. Their I learned some of the ideas of DevOps and the clever ways this has been used to create products and services faster in IT. Cloud being a great tool to facilitate automation led me to Openstack and Rackspace.

Mark Zeman
Mark Zeman (SpeedCurve), @markzeman

Mark Zeman is a Creative Director at Digital Arts by day and Founder at SpeedCurve by night.