Sander
Oostenbrink
Front-end developer — Leiden, Netherlands
Hello, I'm Sander
A -year-old front-end developer from Castricum, now living with my girlfriend in Leiden. I build interfaces that are fast, accessible, and actually pleasant to use.
San Gimignano, Italy — 2022
How I got here
It started at 15 — too many games, too many questions about how they worked. At 16 I enrolled in Software Engineering at MBO Niveau 4, learned C#, HTML, CSS, PHP and SQL. Still not satisfied, I moved on to Communication & Multimedia Design at the HvA, where my front-end skills and UX thinking really clicked. I landed my first developer job at QStylez while still studying.
From there: 24i (streaming tech, innovation team — led a LightningJS POC with a 16% speed improvement, built a full-stack CRM in Vue + PHP), then Beeldr (clients ranging from Microsoft and Vattenfall to small local businesses). Most recently through Capgemini, working on two of the most impactful projects of my career so far.
What I work with
My core is Vue / Nuxt and React / Next.js, backed by TypeScript, SCSS and a solid understanding of component architecture and design systems. I've worked with Redux, Atomic Design, Bootstrap and styled-components. Also comfortable with AngularJS, PHP and MVC patterns. Certified in Angular and Web Accessibility (WAIO.1x). At home in Agile teams with Jira and Confluence.
What I've been building
Used by millions of Dutch citizens weekly. Rebuilding it from scratch with a headless React / Next.js architecture, while maintaining the existing Vue 2 / PHP / Twig stack still in production.
Modernising the documentation system for parliamentary motions and papers. React / Next.js, Redux, custom CSS — extending features, writing tests and supporting teammates on complex problems.
Life outside the screen
Smart home builds, a recipe swiper from my Notion database, AI tinkering. Socially: a friend group of eleven, my girlfriend, good films and RPGs. Physically: padel, tennis, running — and since last year, hiking. Eight days through Norway was enough to get me hooked.