romanantl

Freelance Full Stack Developer

CURRENT FOCUS (2026 - Present) | Costa Blanca, Spain
Actively blending software development with the physical world.
• Smart Home Integration: Design and implementation of local, cloud-free automations (Home Assistant, Zigbee, Shelly, Matter) focused on energy optimization and seamless Apple ecosystem integration or security measures against squatters (ocupas).
• Tech Fixer & Dev Contracts: Delivering fast and reliable solutions for remote teams and local clients. No over-engineering.
• Current Core Stack: Node.js, Next.js, TypeScript, Tailwind, Python.

FREELANCE HISTORY & KEY PROJECTS (2011 - 2025)
Over the past 14+ years, I've successfully delivered projects across various industries, from e-commerce to highly specialized platforms.

Selected clients & projects:
• EIN Presswire
• Flexiana s.r.o.
• Alza.cz a.s.
• Actum, s.r.o.
• QEST.cz
• System Nine s.r.o.
• Světdovolené.cz / Coolsocks.cz

Past technologies utilized: Vue.js, ReactJS, PHP, PostgreSQL, AWS, Linux, Web3/Blockchain (Ethereum, Solidity).


Experience: 10 years

Yearly salary: $60,000

Hourly rate: $40

Nationality: 🇨🇿 Czech Republic

Residency: 🇪🇸 Spain


Experience

Senior Frontend developer
SatoshiLabs
2021 - 2026
Web development of website trezor.io.
Frontend Developer
StreamBee
2020 - 2021
Frontend development of MVP product
Javascript Frontend developer
Apollo Soft
2016 - 2017
Development of internal tools in JavaScript and React
Frontend developer
Bileto
2014 - 2016
Frontend development of main website bileto.cz

Skills

ai
blockchain
ethereum
javascript
nextjs
node
react
typescript
front-end
english
czech