ISO Studio

Sole engineer on isostudio.pl's booking platform - owned it end-to-end, from the Supabase data model and API to the Nuxt 4 client and admin UI. Shipped the client booking flow (magic-link auth, reschedule/cancel, 4-language i18n) as a PWA, plus a mobile-first admin panel backed by unit-tested API handlers.

Betzo

Ramped quickly on a large Vue/Nuxt real-time platform, closing 100+ tickets in the first months. Pioneered the team's first technical-documentation system and automated its upkeep with scheduled Claude Code agent routines. Made AI coding agents a core part of my delivery workflow, reaching ~3x feature throughput while owning code quality. Introduced a micro-release process and built A/B testing infrastructure that contributed to measurable revenue uplift.

IntexSoft

Built high-performance React/Next.js interfaces across finance, healthcare, telecom, and enterprise projects. Designed scalable, modular client-side architecture and improved application performance by ~50% through component optimization and caching strategies. Developed business modules for a federal telecom operator serving 50M+ users, introduced automated testing reducing manual QA by 500+ hours, and mentored junior and mid-level developers.

Paper Crowns

Built custom adaptive, cross-browser web apps across multiple products - animation-driven marketing sites plus content-management and online-commerce features for a design agency.