Six years of full-stack engineering, based in Warsaw. Marketplaces, client sites and AI systems — designed, built and shipped end to end, usually by me alone.
Two-sided products where the real problem is trust, not code. Roles and permissions, moderation queues, reviews, search that survives a hundred thousand rows, and a revenue gate designed in from day one rather than bolted on later. Event-driven services and centralised auth when the thing is big enough to need them.
Biddy · Fixam
Static-rendered marketing sites that load instantly on a bad connection and actually rank. Real content architecture, structured data, and forms that deliver — verified against the served HTML, not just the browser.
TestPortal Academy · Vision Speaks · Tee & Tee
Language models wired into things that run unattended against messy real input — live audio, market data, user documents. The interesting work is everything around the model: capture, validation, fallbacks, and cost.
AI Interviewer · Polymarket scanner
Last pushed 3 weeks ago to vision-speaks
added election featuresMarketplaces, marketing sites and booking systems, delivered end to end.
Front-end and back-end delivery for a UK/Nigeria media company, in React, TypeScript and Node.js.
Sole engineer on a nonprofit's platform, with full ownership of technical decisions and production maintenance.
Scaled an auction-driven marketplace past 10,000 users. Event-driven microservices over NATS.io, Keycloak SSO, PostgreSQL via Prisma, Docker and Kubernetes.
Production React, Node.js and Python applications in a senior team, with test-driven delivery in Jest and Cypress.
Taught Python, JavaScript, HTML, CSS and React hands-on.
Full-stack features for a fintech and banking platform, integrating REST APIs and cloud services under regulation.
Backend services in Python and Node.js for a food-delivery platform.
