Mohammad Al Jaafeel

Lebanese. Based in Nicosia, Cyprus. I build software for a living and build everything else because I have to.

The list of things I make doesn't connect on paper: mobile apps, electrolytic silver refinement, custom keyboards, 3D-printed parts, a drum learning app. I'm not trying to build a brand. I'm trying to stay sane by making things with my hands and my head. If that's what a personal site is, then this is one.

The name is Entropica. The logo is a skeleton pushing an ouroboros up a hill. The metaphor is obvious and I don't apologize for it.

Currently building

Groove

Drums learning app for mobile. Clone Hero meets Melodics. React Native / Expo.

Silver Lab

Electrolytic silver refining. Scrap to .999 grain. Documents the full process.

MIDI Drum Controller

Piezo pads in 3D-printed housings, wired to Arduino MIDI. Pairs with Groove.

StackLedger

Physical precious metals tracker. Per-piece cost basis, real-time P/L. Active.

Professional history

Senior software engineer. AI/RAG, test automation, full-stack. Available for select freelance — contact.

Senior AI Engineer

2023 – Present

Company Name

  • Built and maintained RAG pipeline serving production workloads
  • Designed vector search architecture using pgvector and custom embeddings
  • Implemented evaluation frameworks for retrieval quality and hallucination detection

Senior QA Automation Engineer

2021 – 2023

Company Name

  • Led Cypress test automation across multiple frontend apps
  • Reduced regression cycle time by 60% through parallelized test runs
  • Built CI/CD integration for automated test pipelines

Full-Stack Developer

2019 – 2021

Company Name

  • Developed React + Node.js web applications
  • Implemented RESTful APIs and database schema design
  • Delivered client-facing features with tight deadlines