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Frontend Software Developer - React (m/f/d)

skPosted 29 Aug 2026

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About this role

Purpose We are looking for a Frontend Developer/Engineer to join the team behind Charisma and help build fast, reliable, and intuitive user experiences for a solution supporting complex operational and rollout processes. You will work on modern React applications and Bryntum-based user interfaces, with a strong focus on usability, performance, maintainability, and quality. Beyond delivering new functionality, you will have the opportunity to improve existing production applications, strengthen frontend architecture, and expand test automation.

You will work closely with backend engineers, quality engineers, and business experts in an agile delivery environment, turning real business requirements into effective user-facing solutions. WHAT WILL YOU DO? Build and continuously improve modern frontend applications using React and TypeScript Develop user interfaces using JavaScript ES6+, HTML5, CSS3, and Material UI Build and enhance Bryntum-based interfaces and components Turn new business requirements into intuitive and maintainable frontend functionality Integrate frontend applications with backend services using REST APIs and WebSockets Work with React Hooks, React Router, Redux, and Redux Toolkit Apply component-based architecture, state management, clean code principles, and design patterns Improve application responsiveness, accessibility, and overall frontend performance Contribute to Micro Frontend architectures Build and maintain automated frontend and UI tests using React Testing Library, Cypress, and Playwright Apply Test-Driven Development practices where appropriate Work with Git, CI/CD pipelines, and Docker throughout the development lifecycle Participate in collaborative code reviews following the two-eyes principle Work in an agile environment using Scrum, Kanban, or LeSS Contribute to the stabilization of the production solution and support further rollout activities YOU WILL SUCCEED IF YOU: have: Strong hands-on experience with React Strong knowledge of JavaScript ES6+, TypeScript, HTML5, and CSS3 Experience building user interfaces with Material UI Experience integrating frontend applications with REST APIs Experience with WebSocket management Practical experience with React Hooks, React Router, Redux, and Redux Toolkit Experience working with Bryntum Components Good understanding of responsive design and accessibility, including WCAG Understanding of component-based architecture, state management, clean code, and design patterns Experience with frontend performance optimization Understanding of Micro Frontend architectures Experience with frontend testing and test automation using technologies such as React Testing Library, Cypress, and Playwright Understanding of Test-Driven Development Practical experience with Git, CI/CD pipelines, and Docker Experience working in agile development environments and with Jira And you speak English at a minimum B2 level.

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Nice to Have Experience with Single-SPA Micro Frontend Experience with Next.js Experience with Vite Experience with GraphQL Experience with Web Components Experience using AI-assisted development tools such as GitHub Copilot or Microsoft 365 Copilot WHY SHOULD YOU CHOOSE US? We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life, promotes physical and mental well-being and contributes to a positive work environment.

All this with the aim of providing more freedom in reconciling work, career growth, private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their personal and professional life in these areas: Financial benefits Benefits with focus on learning and development Benefits with focus on health and sport Benefits with focus on family and work – life balance Other benefits For more information about our benefits click to Benefits Salary Final salary is negotiable.

We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 2000€ /brutto. Additional information * Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation. Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when became one of the founding members of Košice IT Valley.

We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into the type of company providing innovative information and communication technology services.

Source listing: smartrecruiters_deutschetelekomitsolutionsslovakia

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