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
- Pine Mail 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 Pine Mail
- 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.
- 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
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Implementing Wizards the Right Way
How to implement multi-step wizards with correct UI/UX patterns, grounded in real examples: Duolingo's one-question onboarding, Stripe Connect's branching, GitHub's import progress, TurboTax's review step, and the anti-patterns that make users abandon.
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How to Make an MVP in the AI Era
What an MVP actually needs to do now that AI makes building nearly free. The traps of AI-era MVPs, proven industry examples like Dropbox, Groupon, Zappos and Midjourney, and why the constraint moved from writing code 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 someone who knows an event-driven framework from someone who understands distributed systems. Idempotency, ordering, consistency, schema evolution, sagas, observability, and knowing when NOT to use events.
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Beyond Email: Dual-Channel SMS Catching, 14 MCP Tools, and Email Analysis in Pine Mail
Pine Mail grows from a tiny SMTP catcher into a dual-channel auth testing hub: SMS catching with Twilio webhooks, 14 MCP tools for AI agents, and Litmus-style email analysis.
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Introducing Pine Mail: A Tiny SMTP Mail Catcher for Developers and AI Agents
Why I built Pine Mail: a single-binary SMTP mail catcher in Rust with a REST API and MCP server for automated testing and AI agents.