The Face Behind the Melon
Smart Dev Work, Scoped Precisely, Delivered Reliably
chronoMelon is a solo development studio focused on test automation, workflow tooling, and custom software that quietly makes things work better.
We work with growing teams, founders, and operators who are ready to streamline how they build, release, and run their business and want a reliable partner to make it happen.
Who We Are
chronoMelon is run by Jeffrey Reijnen – a developer with years of experience in QA, automation, and full-stack software development.
Before starting chronoMelon, Jeffrey worked across enterprise testing, e-commerce, and Master Data Management. That background shaped the studio’s core philosophy: build with stability, test coverage, and future extensibility in mind from day one.
Why Clients Work With Us
We don’t overbuild
We focus on tools, scripts, and systems that solve real friction. Not “nice to haves.”
We think like teammates
chronoMelon is often brought in to support dev teams directly, speak their language, and get work done independently.
We stay involved
Clients bring us back to iterate, extend, or support what we’ve built. That’s by design.
What We Work On
Whether we’re adding test coverage to a growing codebase or building a small tool that saves a team 5 hours per week — the goal is always the same: build cleanly, communicate clearly, and leave things better than we found them.
Test automation pipelines (Playwright, Selenium, CI/CD)
Workflow automation and internal tooling
AI-integrated dev tools
Scoped custom builds (Python, Javascript, PHP, React Native, and more)
Automations that replace repetitive glue or legacy scripts
Let's Work Together
If you’re ready to improve your testing, automate your workflows, or build a tool your team actually uses – let’s talk!