Work

Three case studies. Each one says what was decided and why, not only what was built.

• A fintech data platform, built solo

  Finally, 2025 to 2026

  The warehouse, the orchestration under it, the lender reporting on top, and the evaluation layer for the LLM systems. What was inherited, the build in order, ten decisions, and what it cost to run.

• The pipeline behind a recommendation model

  Jane.com, 2020 to 2022

  Airflow and Spark on EMR built training data from a billion clickstream rows over a rolling ten-month window, SageMaker post-processed the output, and data-quality DAGs stood in front of the model.

• CritPages

  Founder and sole engineer, 2026

  A critique app for unpublished writing, built with Claude Code. The architecture decisions that kept four hundred AI-written commits from becoming a Frankenstein app.