11/09/2026 updated
100 % available
Senior Frontend Engineer - React, Next.js, TypeScript, Three.js
Prague, Czech Republic
Only remote
Information TechnologyAbout me
I design and build websites that speak for you before you ever meet the customer with hands-on senior engineering and 3D. Positioning, design and development work as a whole, so you deal with one person from the first sketch to launch. 16 years of building for the web
React & Next.js Development
Expertise in building high-performance web applications using React and Next.js, covering architecture, UI/UX design, SSR, SSG, ISR, and render optimisation across 50+ delivered projects.
TypeScript & JavaScript
Strong command of TypeScript and JavaScript for scalable, maintainable frontend codebases, including complex state management with TanStack Query and Zustand.
Performance Optimisation
Deep focus on web performance using Core Web Vitals, Lighthouse audits, caching strategies, image and video optimisation, achieving near-perfect Lighthouse scores across multiple projects.
3D & WebGL with Three.js
Hands-on experience building interactive 3D scenes, glass and material shaders, and WebGL-based editors using Three.js and WebGL, including Draco-compressed GLB models and spatial navigation.
Testing & Quality Assurance
Proficiency in end-to-end and component testing using Playwright, Cypress, Vitest, and Storybook, with automated CI/CD pipelines and error monitoring via Sentry.
CI/CD & DevOps
Experience with Git Flow, Docker, Vercel, AWS, and Google Cloud for continuous integration and deployment, ensuring reliable and scalable delivery pipelines.
GraphQL & REST APIs
Integration of GraphQL and REST APIs for data-heavy applications, including WebSocket servers for real-time shared editing and live updates.
UI/UX & Design Tools
Proficiency in Figma and Adobe Suite for UI/UX design, prototyping, and brand development, covering full product cycles from concept to production.
AI Workflow Integration
Utilisation of AI tools such as Claude Code and Codex with agent skills to accelerate development and delivery, enabling brand launches in days rather than months.
Tailwind CSS & CSS Modules
Styling expertise using Tailwind CSS and CSS Modules for responsive, maintainable, and scalable design systems across multiple brand projects.
Expertise in building high-performance web applications using React and Next.js, covering architecture, UI/UX design, SSR, SSG, ISR, and render optimisation across 50+ delivered projects.
TypeScript & JavaScript
Strong command of TypeScript and JavaScript for scalable, maintainable frontend codebases, including complex state management with TanStack Query and Zustand.
Performance Optimisation
Deep focus on web performance using Core Web Vitals, Lighthouse audits, caching strategies, image and video optimisation, achieving near-perfect Lighthouse scores across multiple projects.
3D & WebGL with Three.js
Hands-on experience building interactive 3D scenes, glass and material shaders, and WebGL-based editors using Three.js and WebGL, including Draco-compressed GLB models and spatial navigation.
Testing & Quality Assurance
Proficiency in end-to-end and component testing using Playwright, Cypress, Vitest, and Storybook, with automated CI/CD pipelines and error monitoring via Sentry.
CI/CD & DevOps
Experience with Git Flow, Docker, Vercel, AWS, and Google Cloud for continuous integration and deployment, ensuring reliable and scalable delivery pipelines.
GraphQL & REST APIs
Integration of GraphQL and REST APIs for data-heavy applications, including WebSocket servers for real-time shared editing and live updates.
UI/UX & Design Tools
Proficiency in Figma and Adobe Suite for UI/UX design, prototyping, and brand development, covering full product cycles from concept to production.
AI Workflow Integration
Utilisation of AI tools such as Claude Code and Codex with agent skills to accelerate development and delivery, enabling brand launches in days rather than months.
Tailwind CSS & CSS Modules
Styling expertise using Tailwind CSS and CSS Modules for responsive, maintainable, and scalable design systems across multiple brand projects.
Experience
Professional experience10+ years
Freelancer since2025
Languages
EnglishFluent
Project history
Full ownership of frontend development and brand development projects including Asylon (turnkey-homes brand, Next.js website with Matterport tour and AI interior visuals), Volcanica Adventures (Next.js with i18n, modular trip offers, WhatsApp inquiry flow), Strobl Configure (open-source 3D sales engine in Next.js and Three.js, Shopify plugin), and websites for multiple clients. Personal R&D including a browser rhythm game. Tech: Next.js, React, TypeScript, Tailwind CSS, i18n, Three.js, Web Audio API, Shopify, Vercel, Figma.
Long-term project collaboration. Designed and launched the complete brand, website and custom JavaScript e-shop for the first commercial client (Marilon). Modernised WordPress and Joomla websites into React or HTML/CSS to improve security and maintainability, including PHP/MySQL migrations. Maintained roughly 20 websites through security updates, optimisation and production support. Tech: React, WordPress, Joomla, HTML/CSS, PHP, MySQL.
Designed architecture and UI/UX and built the Next.js + TypeScript frontend for product configuration, team permissions, shared products and versioning. Wrote the WebSocket server for real-time shared editing. Wrote glass and material shaders for the Three.js editor. Optimised data-heavy loading with caching and API response tuning. Automated rendering with Maya scripts and Chaos Cloud pipeline. Built and published an Adobe Illustrator plugin. Introduced stand-ups, sprints, Git Flow, documentation, E2E tests and CI/CD pipelines. Led a 5-member team. Tech: Next.js, TypeScript, Symfony REST, NextAuth, Three.js, WebSockets, Docker, DigitalOcean, Cypress, Playwright, Adobe Scripting, Maya Scripting, Figma, Slack, Monday.