Marcel Blijleven is a Senior Software Engineer based in Amsterdam with 11 years of hands-on experience building reliable web and automation solutions. He specializes in Python and Django, and pairs that backend strength with TypeScript and React/Next.js front-end work, plus CI/CD, test automation and TDD practices. Marcel has a track record of improving release pipelines and test infrastructure across retail and utilities clients, most recently bringing that expertise to KPN after multiple impactful engagements via TestCoders and Gall & Gall. He routinely automates environment provisioning and monitoring (Kubernetes, Docker, Grafana, New Relic, Sentry) and has introduced team practices like conventional commits to streamline changelogs and releases. Colleagues rely on him to turn migration and E2E testing challenges into repeatable, observable processes that reduce regressions and speed delivery.
11 years of coding experience
9 years of employment as a software developer
Media Entertainment Management, Media Entertainment Management at Inholland University of Applied Sciences
English, Dutch
Stackoverflow
Stats
1,453reputation
107kreached
78answers
3questions
Badges
selenium
top-5%
Github Skills (117)
fitness10
github10
testing10
test-framework10
automation10
appium10
javascript10
test-automation-framework10
webdriver10
browser10
devtools10
project-setup10
mobile-automation10
test-automation10
garmin10
Programming languages (7)
TypeScriptShellJavaScriptGoHTMLRich Text FormatPython
Contributions:58 PRs, 112 pushes, 66 branches in 8 months
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Marcel Blijleven - Senior Software Engineer at KPN