About me

Me presenting at DevFest Lille, one of my favourite conferences

My name is Julien and I'm a 🇫🇷 Developer Experience Developer and Expert living in the Netherlands. I help technical companies build better developer experiences and thriving communities that drive adoption and retention.

I am a Google Developer Expert in Kotlin and international speaker. At ING, I lead the Developer Relations team. Before that, I lead teams at Adyen as well as various startup. I also host the Amsterdam DevRel Salon and ING Tech Meetups.

My mission: build islands where knowledge turns into value and nerds are the heroes.

Work With Me

Through Majulen, my consultancy, I offer Developer Experience and Relations audits for companies building developer-focused products. Whether you're launching a new tool, improving onboarding, or growing your community, I provide actionable insights backed by 15+ years of technical experience from the space to the financial industry.

I'm also always open for the next challenge and available for hire for exciting opportunities.

Let's grab a virtual coffee →

My early background also spans Image Processing engineering, academic research (published papers) and community building. I love solving real problems through the intersection of technology and human connection.

When not working, you'll find me coding, bouldering, or sharing insights on BlueSky.

Feel free to reach out - I'd love to hear about your next challenge.