Ward Lavrijsen

Hi, I'm Ward

Full-stack software engineer building web products around attribution, automation, ERP systems, and operational workflows.

hi@wardlavrijsen.com

Selected work

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My stack

About

I'm a full-stack software engineer from the Netherlands. I build practical web applications and companies around problems that are worth solving properly.

My current work is focused on Octanist, software for offline conversion tracking and attribution in digital advertising, and EPAdossier, ERP software for energy-label companies in the Netherlands.

I like working close to the product: shaping the interface, designing the data model, building the backend, and shipping the details that make a tool feel reliable in daily use. I usually move fast, keep pushing things forward, and prefer learning from shipped software over sitting too long on theory.

I also work a lot with coding agents like Codex, Claude Code, and Cursor. They help me move faster from idea to working software, while keeping enough control over the architecture, product direction, and final implementation quality.

Experience

  • Trezma

    Founder & Software Engineer

    2024 - Now
  • Mach8

    AI Software Engineer

    2025 - 2026
  • ASML

    Software Engineering Intern

    2024 - 2025
  • Online Aannemer

    Digital Automation

    2023 - 2025
  • Brofiber

    Full-Stack Engineer

    2021 - 2024

Skills

  • Product-minded full-stack development
  • TypeScript, React, Next.js, and TanStack Start
  • Server-side APIs and background workflows
  • PostgreSQL, Drizzle ORM, and relational data modeling
  • Authentication, authorization, and multi-tenant SaaS
  • Stripe billing and subscription flows
  • Cloudflare, Vercel, deployment, and infrastructure
  • Technical SEO, analytics, and conversion tracking
  • UI polish, accessibility, and responsive interfaces
  • WordPress, client platforms, and internal tools
  • Automation for repetitive operational workflows
  • Turning rough product ideas into shipped software