AI-first casting platform for actors and background performers. Built directly with the founder and with the agency clients — requirements came from sitting with bookers and casting directors, not from a spec document.

• Empty repository to the App Store in 16 weeks. First commit 2025-12-07, iOS release 2026-03-29, Android alongside it. 10,000+ artist profiles in production today.
• Agent CS — the agent inside the product. It writes casting briefs, matches artists against them, and explains every rank and every removal rather than silently returning a shorter list. Hybrid retrieval: pgvector embeddings over generated artist prose, combined with SQL facet filters.
• Agent-orchestrated engineering, in production. Implement, review and deploy run as separate scoped identities — each its own unix account, its own forge token, its own least-privilege grant — so a lane can only ever do what its uid can read. Merges and production deploys stay human-gated. Claude and Claude Code are build partners on long-horizon tasks, not autocomplete.
• Owned the entire stack, nine repositories: Flutter artist app (iOS + Android), SvelteKit booker console, Astro public site, Go/Gin core and auth APIs, Python/FastAPI + PydanticAI agent and matching services, PostgreSQL 17.
• Infrastructure as code, end to end: NixOS + k3s + Traefik, Flux GitOps with SHA-pinned images, self-hosted Forgejo CI, pgBackRest to S3, Prometheus alerting. Production is reproducible from a single configuration.
• Carried the non-engineering load a real launch needs: App Store review policy for face data, GDPR posture, legal contracts and payment flows for talent, and the customer conversations that decided what got built next.

Live at https://casting.studio.

• Commercial delivery for clients across fintech, mobility, HR tech and media — usually as the only engineer, working straight with the founder.
• Systems & backend in Go and Rust. Full-stack in TypeScript, Svelte/SvelteKit, Next.js. Mobile in Flutter and Swift/SwiftUI.
• Infrastructure on Linux, NixOS, Docker, Kubernetes, Cloudflare, with CI/CD and observability built in from the start. Services run at >99.9% availability.
• Open-source contributions to tokio-rs/axum and helix-editor/helix, plus the libraries listed under Projects.

• CLI development in Golang for the NordVPN Linux client.
• Desktop GUI in Flutter / Dart.
• Delivery inside a large product organisation — code review, release process, Jira.

Recruitment platform automating sourcing and onboarding for hospitality teams.

• System architect and technical lead of the engineering team.
• Web application in Svelte/SvelteKit & Node.js, PostgreSQL, Meilisearch full-text search.
• Containerisation and orchestration with Docker & Docker Compose.

Real-time AI over CCTV cameras to tell drivers where parking is actually free.

• Go microservices with a fault-tolerant architecture; Svelte/SvelteKit clients on web, iOS and Android.
• Computer-vision models in Python & Keras, trained on live camera feeds.
• DevOps with Docker Swarm, CI/CD with GitHub Actions.
• Took it from idea to users and to an international stage — represented Poland at Regeneron ISEF in Los Angeles. Business development, partner talks with cities, and public speaking were mine too.

Project site: https://wheretopark.app.

• Bridging the IP and SDI broadcast video worlds.
• Custom FFmpeg filter development in C.

• Lead developer of Vape Tool, a mobile app with over 1M downloads on Google Play.
• React web application, Firebase serverless functions.