mehby@dev:~$whoami
Mohamed Elhedi Ben Yedder
CTO and co-founder of CoaChess / available for freelance product engineering
I build and ship full stack products, end to end.
# live 4 surfaces, checked just now
Work that ships
CoaChess
A chess coaching platform with four customer-facing surfaces, a B2B side for academies, and self-hosted live video.
read the case study →# helmdeck/Helmdeck
Open-source mission control for AI coding agents, built on the open Agent Client Protocol.
read the case study →# volt-tunisia/VoltTunisia
The national electric vehicle companion for Tunisia, built around the tariff and tax rules drivers actually face.
read the case study →What I actually do
Product engineering
Interfaces in React and TypeScript, services in Python. I take a product from an empty repository to something people use, without a handoff in the middle where the intent gets lost.
Systems with hard rules
Federation pairing rules, national electricity tariffs, tax exemptions, wire protocols. The work I am best at is the kind where the domain has real constraints and getting them subtly wrong is worse than shipping late.
Real time and infrastructure
Synchronous products where latency and state are the product, not a detail. Self-hosted video with server side recording, and the deployment work that keeps it running.
Start a conversation
Tell me what you are building and what is in the way. I reply to everything.
hello@mehby.com