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Mohamad Amin Al Hajj

This is my little corner of the web: part notebook, part workbench, part portfolio of production AI, tiny products, and the judgement that turns ideas into shipped systems. Away from the keyboard, I like cooking, football, running, reading, and wakeboarding.

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Mohamad Amin Al Hajj — AI systems, product taste, and a few stubborn side quests.

Room lights

Choose the mood.

01PortfolioSystems and proofA source-grounded view of the AI systems, product judgement, and delivery habits behind the work.02Made thingPing WatchA phone-as-sensor safety product built for practical alerts and small-VPS reality.03NotesWritingShort field notes on AI systems, delivery, judgement, and product taste.

Currently drawn to

Small obsessions, loosely arranged.

Small products with a clear jobProduction AI that survives contact with usersInterfaces that invite close inspectionWriting that explains the tradeoffsSovereign and governed AICookingFootballRunningReadingWakeboarding

Latest writing

Recent notes from the notebook.

4 min readThe Value of AI Expertise: Knowing When to Say No

A practical argument for AI leadership that can reject overbuilt solutions and protect teams from waste.

8 min readFrom Guessing to Guarantees

A look at abstention-aware evaluation and information budgets as practical controls for hallucination risk.

7 min readAre LLMs Really Deterministic?

A grounded explanation of sampling, implementation details, and why repeat prompts can still drift.