Available for new projects

Freelance
Backend Developer & Architect

I design and ship the backend systems behind products people rely on every day — from national news platforms to retail at scale.

Trusted by teams atDPG Media · nu.nl·HEMA·Ultimaker

Portrait of Michiel van Alphen
rocketsinthesky.com

Featured Work

Selected projects

A few of the platforms and systems I've architected and built for clients across media, retail and e-commerce.

DPG Media logo

NU.nl News Platform

Senior Engineer & Architect

2023 — present

Backend development for one of the Netherlands' leading news platforms, including migrating core legacy services to modern in-house systems built for high traffic.

  • Node.js
  • TypeScript
  • GraphQL
  • Python
  • AWS
  • Kubernetes
HEMA logo

Order & Fulfillment Platform

Solution Architect

2020 — 2022

Designed and launched an event-driven architecture for order management and fulfillment at one of The Netherlands' largest retailers.

  • Kafka
  • Node.js
  • Java
  • AWS
  • Event-Driven
  • Salesforce
Ultimaker logo

Ultimaker Platform Migration

Senior Backend Developer

2018 — 2020

Architected the new ultimaker.com backend to replace a legacy platform, plus an enterprise subscription API with OAuth2 built on domain-driven design.

  • NestJS
  • TypeScript
  • DDD
  • Symfony
  • Kotlin
  • Docker

Freelance Services

How we work together

Whether you need an architect to shape the system or a developer to build it — or both — here's what I offer and how engagements run.

Software Architect

From requirements to blueprint — clear system designs your team can actually build on.

  • Requirements engineering & system design
  • Event-driven & microservice architectures
  • Cloud (AWS) strategy & DevOps guidance
  • Team coaching, ADRs & code reviews

Backend Developer

Hands-on delivery of production-grade APIs and services — from first commit to scale.

  • Node.js / TypeScript / Java services
  • REST & GraphQL API design
  • Legacy migration & modernization
  • Testing, CI/CD & performance work

Want the details? Each service has its own page with scope, deliverables and FAQs:

STEP 01

Discover

We map your goals, constraints and domain together. You get a concrete architecture proposal with trade-offs, estimates and a delivery plan.

STEP 02

Build

I ship in short agile iterations with CI/CD, code reviews and regular demos — you always know exactly where things stand.

STEP 03

Scale & Handover

We harden the system for real load, set up monitoring, document everything and hand over to your team with confidence.

About

The person behind the code

I'm Michiel — a backend developer and architect from Amersfoort. After my bachelor's in Information Sciences I spent years at development agencies, then went fully freelance to work closer to the product and own outcomes end-to-end.

These days I help teams design event-driven backends, migrate legacy platforms and ship APIs that hold up under real traffic — with modern standards and a value-first mindset.

  • Based in Amersfoort, NL — remote across Europe
  • Dutch (native) · English (advanced)
  • BSc Information Sciences
20+
Years of experience
7+
Years freelance
20+
Projects delivered

Want more detail on my background and track record? I'm happy to share my full resume.

Request My Resume

Contact

Let's build something solid.

Have a project in mind, or need an architect to untangle your backend? Tell me about it — I usually reply within 24 hours.

Amersfoort, The Netherlands · working remote across Europe

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