Available for new projects
I build AI systems that businesses really depend on.
I'm Yoosuf Mohamed — systems architect and AI engineer in Colombo. I help startups and enterprises ship LLM/RAG products, AI automation, and full-stack platforms that go beyond the demo and scale reliably.
Products & projects
- Postwire Live Self-hosted email + SMS catcher for dev, CI, and AI agents. Catch OTPs, magic links, and 2FA codes without touching your real inbox. View Postwire
- KeepAI In the works A memory layer for AI. Give agents and assistants durable context that carries across sessions — notes, decisions, and knowledge that actually stick. Coming soon
- Messenger Open source An open-source relational chat schema — one-to-one and group messaging, moderation, device sessions, and attachments for Node.js or Go backends. View Messenger
Recent posts
All posts →-
Answer Engine Optimization Is an Architecture Problem
AEO explained as systems architecture — the indexing plane, the query plane, chunking as the real unit of ranking, why citation is a separate decision from retrieval, and how to measure it without lying to yourself.
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Implementing Wizards the Right Way
Building multi-step wizards: Duolingo's one-question onboarding, Stripe Connect's branching, and the anti-patterns that make users quit.
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How to Make an MVP in the AI Era
What an MVP needs now that AI makes building nearly free: the traps to avoid, and why the constraint moved to testing assumptions with real customers.
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10 Event-Driven Architecture Questions That Separate Architects from Framework Users
Ten questions that separate framework users from distributed-systems engineers: idempotency, ordering, sagas, observability, and when not to use events.
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Beyond Email: Dual-Channel SMS Catching, 14 MCP Tools, and Email Analysis in Postwire
Postwire v0.2 adds SMS catching with Twilio webhooks, 14 MCP tools for AI agents, and Litmus-style email analysis to the local mail catcher.