11/04/2026 updated

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100 % available

Senior Frontend Architect / Senior Frontend Developer

Pilsen, Czech Republic
Only remote
Dipl. Ing. Electronics & Informatics, University of West Bohemia
Pilsen, Czech Republic
Only remote
Dipl. Ing. Electronics & Informatics, University of West Bohemia

Profile attachments

Recommendation_Letter_Tomáš_Holub.pdf
Arbeitszeugnis_Tomas Holub 31.12.2021.pdf
CV_Tomas_Holub_AI_Engineer.pdf
CV_Tomas_Holub_Senior_Frontend_Developer_DE.pdf

About me

Senior Frontend Developer with 15 years of experience in scalable enterprise apps, mainly with React. Over 10 years of continuous development tradition for the DACH market, delivering clean, reliable, and maintainable solutions for complex B2B systems.

VitestWeb ComponentsViteGulp.jsWeb AccessibilityAdobe Experience ManagerBackbone.JsIonicNext.jsTypeScriptReact.jsWebpackPlaywrightReact NativeFront End Software DevelopmentReact Redux
Frontend Architecture
Expertise in designing and implementing scalable frontend architectures for enterprise and B2B web applications, with a focus on long-term maintainability and performance.

React.js Ecosystem
Deep knowledge of React.js and its ecosystem including Redux, RTKQ, React Query, Zustand, and React Native, applied across numerous large-scale commercial projects.

Scalable Enterprise Application Development
Extensive experience building and delivering high-quality enterprise and B2B solutions, including platform integrations, product configurators, and multi-business-unit applications.

JavaScript, HTML & CSS
Solid foundation in core web technologies including JavaScript, HTML, and CSS, used consistently across all frontend development projects.

Build Tools
Proficiency with modern build tools such as Vite, Webpack, and Gulp for optimizing frontend development workflows and production builds.

Next.js
Advanced knowledge of Next.js implementation, including the App Router architecture and React Server Components to build scalable, data-driven applications with efficient loading states.

React Native & Expo
Experience developing mobile applications using React Native and Expo, extending frontend skills into the mobile domain.

Legacy Frontend Technologies
Familiarity also with legacy frameworks and libraries including Backbone.js, Angular.js, Vue.js, Ionic, Mocha, Protractor, Jasmine, Preact, and jQuery.

Fullstack Development
Background in fullstack development using PHP and Node.js, including development of web platforms and mobile applications.

AI Architecture
Experience with developing custom AI agents & chatbots based on AI SDK including MCP & RAG

AI Augmented Development
Application of AI-augmented development practices to enhance productivity and code quality in modern software projects.

Software Testing
Experience with modern automated testing using tools like Vitest and Playwright, including test design and implementation for reliable frontend applications.

Experience

Professional experience10+ years
Freelancer since2022

Languages

GermanFluentEnglishFluentCzechNative speaker

Project history

Freelance Senior Frontend Architect

CERATIZIT S.A.
Project Ceratizit OCP - integration of all business units under one common platform solution. Project Ceratizit Agricarb - extension of OCP by new business unit.

Freelance Senior Frontend Developer

UNIC GmbH
Project Ceratizit CT shop - new features for other business units (react.js). Project Ceratizit Configurator - implementation of product configurator (react.js).

Senior Frontend Developer

UNIC GmbH
Project Ceratizit - architecture setup and development of b2b web application (react.js). Project Ceratizit Rebranding - feature enhancements and complete redesign.

Professional Frontend Developer

UNIC GmbH
Project myAudi - frontend development. Project Firststop - frontend development on web application (angular.js). Project GVB - frontend development responsive website.

Fullstack Developer

CHECK24 GmbH
Fullstack development (PHP/Javascript) for Check24 website. Development of mobile application.

Fullstack Developer

Intraworlds s.r.o.
Fullstack development (PHP, javascript, backbone.js) for Alumni & Talent network.

SW Tester

ZF Engineering
Automated testing tasks in automotive segment, HIL testing, creation of test specifications.

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