# Sidhant Mathur Sales operations specialist and builder. I make internal tools and revenue systems at Nokia, and I run A Darle 20, a marketplace for tabletop game sessions in Latin America. ## Pages / — Home: background, selected work, and a chat assistant that answers questions about my work. /projects/adarle20 — A Darle 20: a marketplace for tabletop game sessions in Latin America. /projects/nokia — Reporting tools at Nokia: internal tools for a global sales organization. /projects/dell-ml — Sales prediction at Dell: a machine learning model for lead targeting, built as an intern. /resume — Resume, with a plain-text version at /resume.md. /colophon — How this site was built. /prompt — The full system prompt the site's assistant runs on. /refusals — What the assistant will not do, and which of those rules are enforced by code rather than asked of the model. /measurements — What the assistant scores against a fixed eval corpus. /measurements/models — Every model this site can run, compared on one corpus: pass rate, latency, tokens and cost per task. /chat — Ask a question about my work directly.