Nikolas Stepan
I'm a technical founder, multilingual, comfortable as deep in the stack as you need to go — and I keep my work close to the people who actually use it.
I co-founded my first company, CADEMA (a Czech wooden-structures manufacturer), at sixteen. Six years later it has a 3D configurator, a Czech-language voice agent, a parametric Blender pipeline, and a fully migrated Upgates storefront — all of which I built. Along the way I co-founded GemArt in 2022 (a cultural NGO in the Gemer region of Slovakia) and started Gemcraft in 2025 (B2B craft-workshop sales).
The day-job has always been: see the workflow that's bottlenecking the business → build the software that removes the bottleneck → live with the consequences as a user. That loop — not a degree — is what taught me to ship. It's also why I'm looking now for a senior eng / solutions-engineer / founding-engineer role at a company building something I'd happily live with for years.
Outside of code I'm also finishing an MSc in Health & Clinical Psychology at Birkbeck (University of London), on top of an honours BSc in Psychology with Counselling at the Open University. The psych background isn't decoration — it's what makes me good at multi-agent persona design and at user-facing AI work.
Multi-agent orchestration with role separation, persona + memory architectures, MCP integrations (Blender, Canva, Hyper3D), Twilio voice agents, hard-tested in Czech and Slovak.
Marketing Lab (9 agents) · Gemer Times newsroom (6 agents) · Gemcraft CEO Agent · CADEMA voice agent
React 18/19, Next.js 15/16, NestJS, Fastify, FastAPI — with real production deployments on Hetzner, Vercel, Docker Compose. Equally happy in TypeScript or Python.
GemMark (Next 16 / R19 / Three.js) · Mission Control (FastAPI + Expo) · Upgates AI translator
Three.js + React Three Fiber in two production apps with PDF export, live pricing, URL-shareable state. Blender / bpy / MCP for parametric server-side modelling.
CADEMA Configurator · CADEMA 3D Generator (Blender + MCP)
Flutter (iOS / Android / Web from one codebase) with offline-first persistence and QR-driven flows; React Native / Expo with EAS APK builds and offline-first SQLite sync.
Lacko Museum App · Mission Control mobile
Playwright + Scrapling + BeautifulSoup pipelines with three-tier fallback chains, resume / progress files, polite throttling, anti-block strategies. Real production tonnage.
Schools.sk · Companies.sk · AI Gemer Researcher
Founder mindset on cost, churn, throughput and audit trails. Docker multi-stage, docker-compose, Hetzner VPS, EAS, GitHub Actions, env-driven config. CI/CD that survives a rough Friday.
Self-hosted Postiz · Paperclip AI · Group-Ops bridge
I'm based in Budapest but do not speak Hungarian. I'm looking for roles where the working language is one of the five above.
B2B craft-workshop brand. Built the entire technical and operational stack solo: a Python prospect-enrichment pipeline for ~3,400 Slovak schools and SMEs, an Outlook-COM email engine with inline-image MIME, and an autonomous CEO-agent persona/memory framework on Claude.
Postgraduate research-track psychology — complementing the engineering work with formal training in human behaviour, evidence-based intervention design and quantitative methods.
Co-founded the Gemer Artistic Institute — a cultural NGO around art, wine and gastronomy in the Gemer region. Plan and run events, manage cross-language partnerships, lead all digital tooling.
Co-founded a Czech manufacturer of wooden garden structures at age 16. Own all software: a Czech-language voice agent on Twilio, a React + Three.js 3D configurator, a parametric Blender + MCP CAD/render pipeline, a 314-SKU PrestaShop → Upgates migration, and the full CE/ES regulatory documentation set.