- 👋 I'm Humberto Yusta, @humbertoyusta
- 🔭 I'm currently a Software Engineer at Flexus, building a multi-tenant SaaS with an AI agent framework — omnichannel inbox, CRM, agent memory (RAG) and a resilient agent scheduler.
- 🧠 Before that I built an open-source coding agent in Rust at Refact.ai, ranked 2nd on SWE-bench Verified, 1st on Multimodal & Lite, and 1st on Aider Polyglot at submission time.
- 🎓 BSc in Computer & Data Science (Magna Cum Laude) at Harbour Space University.
- 👀 Interested in software & web development, AI agents, math and machine learning.
- 🏅 7+ years in competitive programming — IOI 2020 Bronze medalist (best Latin-American score) and Codeforces Grandmaster.
- 📫 How to reach me:
Languages: Rust · Python · TypeScript · PHP · C++ · Kotlin · Java · SQL Frameworks: FastAPI · Laravel · Flask · React · Next.js · NestJS · LangGraph Data: PostgreSQL · MySQL · Redis · MongoDB · SQLite Tooling & Cloud: Docker · Linux · Git · GitHub/GitLab CI/CD · AWS · Google Cloud · DigitalOcean
- 🥉 Bronze medal, International Olympiad in Informatics (IOI 2020) — highest Latin-American score
- 🔴 Grandmaster on Codeforces
- 🥇 Gold medal (3rd place), Ibero-American Competition in Informatics (CIIC) 2020
- 🏅 16th place, SWERC 2022–2023
- Codeforces Round #768 (Div. 1, Div. 2) — a competitive programming contest with 26,000+ participants.
- cp-problems — competitive programming problems I authored, used at the Ibero-American Competition in Informatics, the Cuban Olympiad in Informatics, and Cuban team-selection contests.
- Buffer Sharing in a Multi-Tenant Cache — thesis on adaptive-size multi-tenant caching, adapting LRU, LFU, MQ, LIRS and LRFU.