David Festen
Principal Consultant at CIBG
Rotterdam and The Hague Netherlands
Summary
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Senior🎓
Top SchoolDavid Festen is a Principal Consultant who helps executives turn IT from a bottleneck into a competitive advantage by aligning teams around value streams and making software delivery measurable and predictable. With 11 years of experience and an MSc in Computer Science/AI from TU Delft, he combines hands-on DevOps and DDD expertise with strategic coaching across government, critical infrastructure, and financial services. He has driven dramatic outcomes—moving CIBG from a few deployments per year to multiple deploys per hour and cutting pipeline times from five hours to five minutes—while also shortening developer ramp-up to first-production contribution at Essent. A practitioner as well as a leader, he works directly with teams on CI/CD, flow metrics and Event Storming rather than only advising executives. He’s drawn to complex, highly regulated environments where “just do Agile” fails, and he’s currently exploring how AI reshapes software delivery and team dynamics. An unusual detail: his background ranges from academic AI work at TU Delft to lighting and stage management, reflecting a pragmatic, systems-thinking approach informed by hands-on variety.
11 years of coding experience
13 years of employment as a software developer
VWO-NT, VWO-NT at EmmauscollegeMaster of Science (MSc) Computer Science / Artificial Intelligence, Master of Science (MSc) Computer Science / Artificial Intelligence at Delft University of Technology
English, Dutch
Stackoverflow
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0reached
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Github Skills (31)
driver7
swift6
lume6
cua6
operator6
browsersync6
windows-sandbox6
containerization6
macos5
node-server5
windows5
ai-agent5
cakephp5
sniffer4
npm4
Programming languages (6)
Github contributions (5)
festen/festen.github.io
Sep 2015 - Jun 2024
Contributions:16 pushes, 1 branch in 8 years 10 months
festen/dotfiles
Dec 2015 - Dec 2025
Contributions:414 pushes, 26 branches, 1 tag in 10 years 1 month
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