Hello, I'm Dawid.Dawid Joubert
Software engineer, entrepreneur, lover of cultures. Based in Spain.
I've been programming for over 20 years. My first paid job was at 17, writing code for a financial news site. Since then I've built trading and payments software in fintech, founded a property company and ran it for eleven years until it was acquired, and spent three years as Director of Product at a PropTech company.
ls ~/buildingWhat I'm building
On the side I run Jouby's Tools: small tools I build and give away.
- Leptonplayable
A Quake-style first-person shooter in Turbo Pascal. The 3D engine uses integer maths only, so the game plays identically on every platform and every run is repeatable.
- Certificate Filinglive
Reads gas safety records, EICRs and EPCs, works out when each one expires, and files it back into COHO.
- Pointing Pokercoming soon
Story-point estimation where nobody anchors on whoever spoke first.
cat ~/now.txtWhere I work
Senior Software Engineer at Ketryx since December 2025. We build AI-native compliance tooling for regulated medical-device software. I work remotely from Spain.
man dawidWhat I do
- Engineering
- TypeScript and Node.js today; PHP, C#, Ruby and Java before that. API and schema design, with strong opinions on data integrity.
- Databases
- SQL Server, MySQL and MariaDB, PostgreSQL.
- Product
- Three years as Director of Product, from customer research to shipped software.
- Business
- Founded, grew and sold a company. MBA from the University of West London.
- Domains
- Fintech, property and PropTech, regulated medical-device software.