The journey of DevOps and Continuous Delivery within a large financial Enterprise organization

Operations and Culture
Location: King's Suite - Sandringham Level: Non-technical
Average rating: ***..
(3.70, 20 ratings)
Slides:   1-FILE 

Main idea of this story
The road to DevOps and Continuous Delivery within a large enterprise organization which is bound by national legislation & historical legacy.
This talk shares experiences how our organization has grown from a waterfall method where there were many departments who had different responsibilities (build, test, deploy, maintain) towards an more Agile approach where build & test where combined towards the current end state of small DevOps teams with an agile continuous delivery approach which are fully responsible for several applications. The organization is a large financial institution within the Netherlands with serveral challenges; more than 2000 employees, many legislation, several domains, several ‘old’ organizations glued together etc. etc.

Sub topics

How did we start?

  • Do you directly implement it for the whole value stream or in small steps?
  • Which challenges did we face during our journey when combining Dev & Ops
  • Keeping in mind there are over >150 DevOps teams
  • There are large parts of the IT outsourced
  • Our IT landscape still has some historical lines with previous joined organizations
  • Our IT landscape was largly still batch oriented, implementations where done manually etc. etc.
  • Did we decentralize all activities or where there still some centralized activities?
  • How did we share best practices between teams
  • Mindset & behaviour: How did we get all the employees up to speed with the knowledge? From process organization towards technical devops organization. Not only employees. Also management.
  • Which different stakeholders did we have? How did we align these stakeholders within a DevOps organization
  • How does Continuous Delivery & DevOps helps your organization building resilience into applications, infrastructure and teams: Get rid of old applications and integrate different channels; PAAS (how?);
  • How did metrics and monitoring helped us with the journey; Value stream monitoring
  • How did automation helped us with the journey; automated testing, deploying etc.
  • 1,5 years later what is the impact of these changes bottom line; For our customers; For our employees; For the collaboration; For the organization; The journey continues; what’s next


  • Rome isn’t build in one day.
  • Getting rid of legacy and changing culture takes time
  • We did not do the right things. Learn from it.
  • Monitoring, Metrics & automation helped us with the journey
  • The energy people get from collaboration and feeling responsible helped us with the journey
  • > 2000 Employees with lots of ideas, energy etc. etc. are worth more than >20 really smart managers
  • Proof of new monitoring and metrics
  • A long way
  • Active coaching

Profile Speaker & Experience
My name is Mark Heistek and I’m working as an IT expert for the Continuous Delivery team within ING Netherlands. My experience with DevOps & continuous delivery is build up for the last 2 years. 2 years ago I was working within the Internet / Mobile channel for ING Netherlands as a IT Operations employee and within this department I’ve helped the shift from process teams towards application teams, preparing for DevOps. The main implementation was the introduction of the mobile channel for ING Netherlands and getting the OPS organization ready for this, working closely with the Dev Scrum teams. At the end of last year after visiting the Velocity conference we’ve started a DevOps pilot within the Internet Channel for ING Netherlands. A pilot DevOps group within a large organization which is still working the traditional way is quite difficult, so we were very please when ING management announced the organization shift towards a DevOps organization. After the announcement I’ve accompanied the transition helping the teams & management in their new roles. Currently I’m part of the continuous delivery team within ING Netherlands in which we’re helping all DevOps teams integrating different tools, enviroments & automating the delivery process.

I’d love to share this journey with the people at Velocity Londen this year as the stories last year really inspired me, but I was still missing & wondering how this is done within large enterprise organizations.

If you have any questions please let me know!

Photo of Mark Heistek

Mark Heistek


Working at ING Bank as IT expert

Photo of Kris Buytaert

Kris Buytaert


Kris Buytaert is a long time Linux and Open Source Consultant doing projects in Belgium , Europe ant the rest of the universe. He is currently working for Inuits, and starting up some new projects still in stealth mode.

Kris is the Co-Author of Virtualization with Xen , maintainer of the openMosix HOWTO and author of different technical publications. He is a frequent speaker at different international conferences.

He spends most of his time working on Linux Clustering (both HA and HPC), Virtualisation and Large Infrastructure Management projects hence trying to build infrastructures that can survive the 10th floor test , better known today as the cloud while actively promoting the devops idea !

His blog titled “Everything is a Freaking DNS Problem” can be found at Occasionally he also writes for

Kris blogs at


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