Built across disciplines. One person.
I'm Abe Gerstein, a developer in Albuquerque. Science, web, markets and knowledge — every project below went from raw idea to something shipped and working, by one person.
Astrometry Pipeline
Raw telescope data → brightness measurements
A Python pipeline that measures how bright a supernova is from telescope images. It calibrates the camera against known reference stars, then reports the supernova's brightness in standard astronomical magnitudes, with uncertainties.
Quantitative Validation Framework
Catching the lies backtests tell
Combinatorial purged cross-validation with a deflated-Sharpe correction, built to catch strategies that only look profitable by luck. Nineteen strategies tested on seven years of real Databento data.
abegerstein.com
The site you're looking at
The site you are looking at. No template and no page-builder — every component, animation, and performance decision designed and written deliberately.
QuantVault Second Brain
A knowledge architecture built like production software
A 10,743-entry Obsidian knowledge base spanning eight domains. Not a notes folder — a structured, cross-linked knowledge graph with a consistent authoring methodology and a retrieval layer wired directly into Claude.
Have something worth building?
I'm open for freelance work: websites, data pipelines, full-stack apps, and custom scripts. If it's software and you have a real problem, let's talk.