Organized series of prestigious mathematics competitions for students in Austria, Slovenia and Poland - Integration Bee. Mobilized International team of problem creators, 30+ volunteers, photographers. Built advanced collaboration problem writing and presenting software using Django and Vue.js. Led marketing campaigns, attracted 200+ visitors per event, many competitors and secured various sponsorships.

Built and shipped the main React 18 frontend (messenger, roster management), improving accessibility, usability, and Azure-based authentication. Delivered AI features (translation, speech-to-text, automation) via Python/FastAPI microservices using Redis and Docker. Mentored junior developers and supported feature delivery through stakeholder feedback and iterative releases.

Built and shipped client-facing UIs in Next.js/TypeScript and React, focusing on clean UX flows, accessibility, and performance. Delivered end-to-end features across frontend and backend services. Implemented AI features in production (LLM workflows, contextual/semantic search, time-series analysis) and iterated based on real client feedback and usage.