agrotop
Website for a manufacturer of spray nozzles and filters for agricultural machinery, including interactive nozzle calculators for farmers.
Software engineer and technical lead · 12 years
I help small product teams plan, build, and fix their software.
I have spent twelve years working across backend, architecture, frontend, and UX. Founders bring me in when they want a senior opinion before a big technical commitment, or an experienced lead to get a product built properly.
Services
What I do
Four ways to work together. Scope, timing, and price are agreed in writing before any work starts.
Architecture review
WhenYou have a codebase, or a plan for one, and want an independent opinion before you build further on it.
I read the code and documentation, talk to the people who built it, and look at how it behaves in production.
You getA written report on what works, what will cause problems, and what to change first, walked through with your team.
First-release planning
WhenYou understand the problem you are solving, but not what the first version should contain or how to build it.
We work through the core user flows together and cut everything that does not serve them.
You getA scoped first release with user flows, an architecture sketch, and an explicit list of what is left out.
Interim technical lead
WhenYou need senior technical leadership but are not ready to hire a full-time CTO.
I join your team part-time: planning, code review, technical decisions, and hands-on development where it helps most.
You getA team that ships steadily, and documentation that stays useful after I leave.
Ongoing advisory
WhenYour team builds on its own but wants an experienced second opinion on the big decisions.
Regular calls, plus reviews of designs and pull requests when something important comes up.
You getShort written recommendations for decisions that are hard to undo.
Selected work
Recent projects
Product websites, online calculators, shops, and web applications built for clients.
Luftfahrtversicherung24
Website and online comparison calculator for an insurance broker specialising in aviation: pilots, flight instructors, and aircraft owners.
Kao Germany seminars
Relaunch of Kao Germany's seminar platform for hairdressers: a filterable catalogue of Goldwell seminars, online booking, and an on-demand video library.
Process
How a project runs
First conversation
You describe the product and the problem. If I am not the right person for it, I will tell you.
Agreed scope
We fix a concrete outcome, a time frame, and a price before any work starts.
Work in short steps
I share progress in writing as I go, so you always know where things stand.
Handover
Code, documents, and decisions are written so your team can carry on without me.
Writing
Recent articles
Web application frontend security: XSS, Content-Security-Policy, and where to keep tokens
Where XSS still gets into React and Astro apps, how to roll out a Content-Security-Policy safely, and why session tokens belong in HttpOnly cookies.
Staying effective as a developer for twenty more years
How to keep learning without chasing every trend, protect time to think, and avoid burning out. Practical habits for developers who plan to do this for decades.
Hexagonal architecture in NestJS: structure, rules, and when to skip it
How ports and adapters map onto a NestJS project: module-based folders, the dependency rule that matters, wiring with Nest DI, and when to skip it.
Working on something similar?
Tell me what you are building and where you are stuck. I reply personally.