Jeroen Van Vianen
Co-Founder at Van Vianen Consultancy
Hoofddorp, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolJeroen Van Vianen is a seasoned web and mobile application developer, co-founder, and consultant with over 20 years of experience building consumer-facing internet products and leading engineering teams. He brings deep full‑stack expertise across Java (Spring, Hibernate), Python, modern front-end frameworks (Angular, Vue), and mobile via Appcelerator Titanium, paired with production databases (Postgres, MySQL, Oracle) and cloud-native tooling (GCP, Kubernetes, Docker). As founder of Onesecondbefore and through his consultancy, he blends hands‑on implementation with strategic technical guidance for clients and startups. Certified as a Liferay Portal Developer and Titanium App Developer, he has a long history of adapting enterprise Java stacks to modern microservices and analytics pipelines (Snowplow, Google Analytics, Looker). Based in Hoofddorp, Netherlands, he’s as comfortable optimizing backend search and security with Lucene and Spring Security as he is refining UX and instrumentation on the front end. His career longevity reflects a pragmatic balance of legacy system knowledge and current cloud-native practices, enabling predictable delivery across heterogeneous tech stacks.
11 years of coding experience
11 years of employment as a software developer
ComeniusDrs, Drs at Erasmus University Rotterdam
English, Dutch
Github Skills (55)
javascript9
npm9
syntax-highlighter9
nodejs9
react9
syntax-highlighting9
datepicker9
zero-dependencies9
rust8
appcelerator8
jsx8
backend8
transpiler8
android8
bundler8
Programming languages (9)
Github contributions (5)
morinel/mapsme
Mar 2016 - May 2018
Contributions:1 release, 4 pushes, 1 branch in 2 years 2 months
morinel/gcmpush
Jun 2015 - Dec 2017
Titanium Module for Android Push
Contributions:9 releases, 24 commits, 8 PRs in 2 years 6 months
android
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