Vicente Reig Rincón de Arellano

Fractional Engineering Lead

Email me, reach out to me on LinkedIn, or collaborate with me on GitHub.

Training Medical LLM Predictors: Process, Costs, and Optimization with DSPy.rb

August 11, 2025

DSPy.rb 0.29.1 + MIPROv2 let me chart the ADE precision-recall curve: the manual 12-trial run lifted recall to 92.2% while the Claude Sonnet auto-medium pass pushed precision to 72%—same code paths, different trade-offs.

Finis Coronat Opus: Welcome to My Blog

August 11, 2025

Product-minded Engineer sharing insights at the intersection of product, engineering, and business strategy. From Apple to startups, here's what I've learned.