Creditas Digital Factory2025 – 2026
Creditas Internet Banking
Refactoring, accessibility and perceived-performance work on a 100K+ line internet banking app — cutting defects by 56%.
- React
- TypeScript
- Tailwind CSS
- Orval
- React Query
- +4
Available for new projectsBratislava, Slovakia
I turn ideas into fast, polished products.
I'm Tomáš, a senior full-stack engineer with 8+ years of shipping production software — internet banking, real-time lab systems, hiring platforms and mobile apps. Frontend, backend or the whole thing end-to-end.
8+years building
production React
production React
- years shipping production React
- 8+
01 — Selected work
Case studies
OAK'S LAB for Nasdaq Private Market2023 – 2025
Nasdaq Private Market
End-to-end ownership of portfolio holdings and onboarding features, plus a 66% faster financial dashboard.
- React
- TypeScript
- Next.js
- Chart.js
- Material UI
- +6
OAK'S LAB2024 – 2025
NXT Hiring Platform
A full-stack hiring platform MVP taken from concept to production — architecture, API, database, UI and Google Cloud deployment.
- React
- TypeScript
- Node.js
- tRPC
- Prisma
- +3
Datamole2020 – 2023
High Throughput Screening Reactor
Web app to configure, schedule and monitor laboratory experiments in real time, visualising 1,000+ data points per second.
- React
- TypeScript
- Chart.js
- WebSockets
- NestJS
- +2
02 — Focus
Where I add the most value
- 01
Frontend architecture
Component structure, state and data-fetching patterns that stay maintainable when the codebase passes 100K lines and the team keeps growing.
- 02
Performance & accessibility
Faster dashboards, smoother loading states and WCAG 2.1 compliance — measured, not guessed.
- 03
End-to-end delivery
From requirements with non-technical stakeholders through API, database and deployment to a product people actually use.
03 — After hours
Personal projects
Where I try new tools end-to-end — from requirements and architecture to tests and deployment.
Personal2026In progress
Crystal Ski Rental
A reservation system for a ski rental with four stores — customer booking, staff front desk and admin, built like a real client project.
- Next.js 16
- React 19
- TypeScript
- Prisma
- +7
Personal2026In progress
Organizer
A task organizer used as a full development-cycle exercise — design system, typed API, database, CI/CD and cloud infrastructure.
- React 19
- TanStack Router
- TanStack Query
- Tailwind CSS
- +10
Personal2026In progress
MyCards
A local-first mobile wallet for loyalty cards that opens the right card automatically when you walk into the shop.
- React Native
- Expo
- TypeScript
- Expo Router
- +4
Senior React Developer at Creditas Digital Factory
Internet banking — quality, accessibility and perceived performance at scale.
2025 — 2026
Senior Software Engineer at OAK'S LAB
Product studio — Nasdaq Private Market and a greenfield hiring platform MVP.
2023 — 2025
Software Engineer at Datamole
Real-time control software for a custom laboratory device.
2020 — 2023
React Developer at IPEX a.s.
Led a small frontend team building a B2B telco self-service portal.
2019 — 2020
05 — Contact
Have a product that needs to be fast and reliable?
I'm open to senior frontend and full-stack roles and freelance projects. Tell me what you're building.