ASML
Developer / Consultant
2017 — 2019
Software Consultancy Eindhoven
Agentic programming · Ruby on Rails 8 · Cloud-native applications
- 24h response
- Free consultation
Your software is slowing you down
You have got technical debt. An unmaintainable codebase. A project that should have taken 3 months but is going on 9. You know you need to act, but you are not sure who to trust or where to start.
- Legacy code that nobody wants to touch
- Missed deadlines and growing complexity
- Technical decisions made without long-term context
- A team that is firefighting instead of building
How I work
14-day fixed-price sprints. Gherkin specs. Tests first.
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Kick-off
Two-hour call. NDA. Scope discussion. Fixed price before lunch.
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Requirements analysis
We write a glossary, prioritize with MoSCoW, and define every feature as a Gherkin scenario. These scenarios become your acceptance tests — executable specifications that prove the software works.
→ Signed spec + Gherkin acceptance scenarios
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Repo live
Code in your GitHub. CI/CD pipeline running. Staging URL by end of day.
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Server provision
Reproducible infrastructure as code — Kamal, Docker, or Ansible. Deploy to your infrastructure or brthlmy-hosted — your call, no lock-in either way.
→ Deployable staging environment + runbook
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Tests first
Every feature starts as a failing test. Gherkin scenarios drive acceptance tests. Unit tests cover the rest. Red-green-refactor — proven, repeatable.
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Hard parts first
The riskiest integration, the data model that might collapse — built first. Daily Loom updates with what's working and what isn't.
→ Core features implemented with passing test suite
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Demo
You click through everything. Feedback goes straight into the sprint. No JIRA. No story points. Just real software you can touch.
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Sprint 2
Polish, edge cases, security review, error handling. Tests are living documentation — anyone can pick up the codebase and understand it.
→ Feature-complete, tested application
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User acceptance testing
You and your team try to break it. Every bug on a board you can see, most fixed same call. Your Gherkin scenarios verify every feature.
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Go live
Deployed to production. SSL, Sentry monitoring, uptime alerts, one-page runbook. You own the code — or pay a monthly fee for hosting, maintenance, and continuous development.
→ Production app + monitoring + runbook
Two ways to own it
Buy outright
Fixed price. Full code ownership. All IP transferred. You can take it anywhere, run it yourself, hire anyone to maintain it.
Monthly subscription
Lower upfront cost. Hosted and maintained by me. Monitoring, backups, updates, and domain reports included. Ideal for startups. Cancel anytime — you keep the code.
See the full Repeatable Software Development Process
How I Ship Software →Recent websites I built
Full-stack Rails development for real clients
brthlmy.com/rrrd
Radio show archive and streaming platform for RaRaRadio
omesieds.com
Professional portfolio site for Nolke Sieds Markus
markusmovers.com
Transport and moving services business site
circustenthuren.com
Circus tent rental platform with photo gallery
rklntr.com
Art portfolio and sales platform for Rolf A. Kluenter
run-dmp.nl
Motorsport performance services website
Enterprise experience
Frequently asked questions
What is your typical rate?
Rates start at €75/hour for standard engagements. Fixed-price quotes available for well-defined projects. The first consultation is always free.
What technologies do you work with?
Ruby on Rails 8 is my primary stack — its convention-over-configuration design pairs perfectly with agentic AI workflows. I also work with Node.js, Go, TypeScript, and Python.
Do you integrate with existing teams?
Yes. I have worked embedded in teams at Philips, ASML, and Signify. I pair well with Scrum and Agile workflows, code review culture, and continuous integration.
What happens after I submit a quote?
I will respond within 24 hours. We schedule a free 30-minute call to discuss scope, timeline, and budget. If there is a fit, I prepare a detailed proposal.
Let's talk about your project
- You fill in this form
- I reply within 24 hours
- Free 30-minute call, no obligation