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.
- Experience
- 10+ years
- building for startups & enterprises
- Focus
- AI-first
- LLM/RAG, automation, agent systems
- Location
- Colombo, LK
- working with teams worldwide
Toolbox
- LLMs & RAG
- AI agents
- Production AI
- Go
- Elixir
- Python · FastAPI
- TypeScript
- React
- Flutter
Products & projects
About Pine Mail →- 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 DB Design Design study A database design study for a messaging product at scale — schema, partitioning, and delivery semantics for chat at millions of messages.
Recent posts
All posts →-
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.
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Make the Hard Decision Before the Product Fails
Most products don't die suddenly - they die from delayed decisions. A practical guide to failure signals, leading indicators, premortems, and perish/pivot/persevere rules founders should set before launch.