Senior Full-Stack Engineer (React&Next.js)

This is us

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development. This is the job You will join a growing UI/UX team at a leading enterprise that is redefining how companies manage AI infrastructure at scale. This is a Full-Stack role focused primarily on front-end development (approximately 60-70% of your time).

This is you 5+ years of relevant professional experience, with a primary focus on frontend development. Expert knowledge of React, core JavaScript/HTML/CSS, and TypeScript. Mastery of advanced React features, including hooks, context, and suspense. Experience with Next.js, specifically both the app router and pages router. Strong understanding of REST APIs, web page performance optimization, and debugging best practices. Experience with module bundlers, reactive state management, and JavaScript unit/feature testing frameworks. Ability to write robust backend services when required, powering responsive and data-rich applications. Eye for design and UX best practices, with familiarity with design systems, Figma, and cross-browser compatibility. Experience working with AI/ML tooling is preferred. Experience with high-scale applications is preferred. Understanding of DevOps/Cloud Native practices is preferred. Fluent in English This is your role Developing and maintaining the frontend of a greenfield, Kubernetes-based PaaS application using React and TypeScript. Building dynamic, real-time dashboards using React, TypeScript, and Next.js. Designing and implementing pixel-perfect UIs with Tailwind CSS that scale across devices. Developing robust backend services and APIs to keep interfaces fast and intelligent. Creating exceptional developer experiences for AI/ML engineers and data scientists. Writing unit, integration, and end-to-end tests to ensure high-quality, production-ready code. Collaborating cross-functionally with Product, UX designers, UI leads, and engineering leadership to ensure design consistency. Actively contributing to team growth, knowledge sharing, and continuously improving the development processes and technology stack. What awaits you at Avenga? Pleasant working environment and stable background in one of the largest software development companies in the EU Space to work independently and creatively with the possibility to implement your own ideas and opportunities to learn new things and approaches You have the opportunity to influence your direction in the company High quality hardware and software, access to the latest technologies and specific projects Opportunities to improve your language skills, we are a major global player At Avenga, you'll get quality support in your development thanks to a wide range of internal and external training courses, so you can push the boundaries of your competences We offer you benefits such as life insurance and pension contribution, EN/DE/ES lessons, MultiSport card, sick days, meal allowance, lots of company events, offices in Prague Palmovka with quality amenities for lovers of sport, food and coffee, hybrid remote work after mutual agreement, and more

At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.