Saemie Chouchane

Software engineer interested in applied AI, software systems, and thoughtful engineering.

I've been building software, consulting, and running engineering businesses since 2010. These days I'm particularly interested in how we make AI systems useful, measurable, and reliable. I work in London, UK.

Currently thinking about

LLM evaluation
Retrieval
Agents
Search
AI engineering
Software architecture

Writing

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You can’t debug what you didn’t measure

What software engineers discover when deterministic debugging meets probabilistic AI systems.

Vector search is not semantic search

Embedding similarity is useful, but retrieval quality depends on much more than nearest neighbours.

Why cosine similarity works for embeddings

A geometric intuition for one of the most common operations in semantic search.

Experience

Applied AI

Building reliable systems around large language models

Evaluation, retrieval, orchestration, and the engineering systems required to move beyond prototypes.

Engineering

Building software for organisations since 2010

Product engineering, consulting, contracting, architecture, and running engineering businesses.

Away from the keyboard

Motorbikes, travelling, and learning things I have no immediate practical reason to learn.