# Felix Cumarav

> Full-stack developer, AI engineer and ML engineer based in Prague, Czechia. Open to remote work and client projects. Placed 13th of 3000+ teams in a Kaggle competition; Math Olympiad participant; finalist of the Czech AI Olympiad 2026 (team notokens).

Single-page portfolio at https://cumarav.com/ (styled as an exam paper). Contact: felix.cumarav@gmail.com. LinkedIn: https://www.linkedin.com/in/felix-cumarav-08412335a. GitHub: https://github.com/cufelix

## Facts
- Name: Felix Cumarav. Location: Prague, Czechia. Languages: Czech, English.
- Roles: full-stack developer, AI engineer, ML engineer.
- Stack: React, Next.js, TypeScript, Node.js, Java, Spring Boot, PostgreSQL, Redis, Prisma, Docker, Linux, Expo; LLM agents, RAG, fine-tuning (LoRA), voice agents; Python, PyTorch, CatBoost, stacking.
- Competitions: Kaggle 13th of 3000+ teams; Kaggle Playground S6E8 (best public ROC AUC 0.97128); Gemma 4 Developer Agent (Google DeepMind); Czech AI Olympiad 2026 national final; Math Olympiad.

## Projects
- [Připojto](https://pripojto.app): trailer rental platform in Czechia (React Native/Expo, Next.js admin, Firebase, Stripe, smart locks). Live.
- [Virlya](https://virlya.com): AI content SaaS that turns a brief into a week of social posts. Live.
- [SPNDR](https://spndr.dev): personal finance tracker with AI categorisation. Live.
- Forksy: nutrition tracking app (Expo).
- Půjčto: rental marketplace app with admin panel.
- Kestrel and LAI: autonomous OS agent; JARVIS: voice agent for Linux; Open Claude in Chrome: browser extension.
- 20-DOF humanoid robot (60 cm, under $2000), ESP32 AI drone.

## Optional
- [Portfolio page](https://cumarav.com/): full project list and details