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hemju

Calm notes on building software and AI systems that last.

Personal notes on software architecture and applied AI, with a focus on reliability, responsibility, and long-term operability.

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Practice

Systems thinking for teams shipping software and AI in the real world.

Architecture reviews, delivery guidance, and writing shaped around reliability, operability, and long-term leverage.

Architecture

Make the technical shape legible.

Clarify boundaries, failure modes, and the operating model before complexity hardens into process.

AI Delivery

Ship applied AI without the theatre.

Bring evaluation, governance, and backend discipline into systems that need to behave under real load.

Advisory

Give leadership a calmer decision surface.

Support founders and CTOs with direct sparring on tradeoffs, sequencing, and durable technical bets.

Writing

Recent field notes.

Essays on backend reliability, architecture decisions, and practical AI systems.

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