Salary: 1200 - 1600 pln/md B2B Location: Warszawa/ Gdynia/ Kraków (elastic hybrid)   Why choose this offer? Work with a top-tier international product company driving digital transformation in the infrastructure space Real ownership of the product, not just ticket delivery Scandinavian culture: autonomy, transparency, flexibility Direct influence on business direction and user-facing functionality Strategic, client-facing role: your voice matters   Project As a Frontend Tech Lead, you'll drive the innovation and evolution of our frontend platform, working primarily with React and our web-based applications. You’ll play a key role in defining frontend technical strategy and architecture, while remaining hands-on with code. You'll work closely with the design and product teams to ensure complex construction workflows are intuitive and engaging for our users. This role combines strong frontend engineering expertise with technical leadership and product thinking. As the client expands their AI capabilities, you'll lead the frontend efforts in creating intelligent, user-friendly interfaces that make AI features accessible to construction professionals, while guiding the team toward scalable and maintainable solutions.   What you'll be doing Drive frontend innovation and evolution of our React-based applications, setting technical direction for our user interfaces Champion user experience by creating intuitive, responsive interfaces that make complex construction workflows simple Act as a frontend technical leader, supporting and guiding engineers through code reviews, architectural discussions, and best practices Lead AI interface integration by designing and implementing user-friendly AI features and interactions Collaborate with design and product teams to translate user needs into exceptional frontend experiences Take ownership of frontend architecture decisions and ensure code quality and performance Navigate our technology landscape with focus on React, modern JavaScript, and frontend tooling Mentor and support Frontend Engineers in modern development techniques, frontend architecture, and AI-assisted programming Participate in technical planning and architectural decisions affecting the frontend platform Shape our frontend future by evaluating new technologies and proposing improvements to our development processes   Expected competences and knowledge Problem-solving mindset: You enjoy tackling complex technical and architectural challenges Ownership mentality: You take responsibility not only for your work, but also for the overall frontend quality High agency: You proactively identify technical risks and opportunities and drive solutions forward Leadership mindset: You enjoy guiding others, sharing knowledge, and raising the technical bar of the team Growth orientation: You continuously learn and help others grow alongside you AI enthusiasm: You’re interested in leveraging AI to improve both user experience and developer productivity Strong communication skills: You clearly articulate technical decisions to engineers, product managers, and designers Product thinking: You care deeply about the impact of frontend solutions on users and the business Adaptability: You're comfortable working across the stack when needed and navigating evolving requirements Collaborative approach: You foster healthy team dynamics and constructive technical discussions English proficiency: C1 or higher – you communicate confidently in English in both technical and business contexts   Technical Skills Strong, hands-on experience with React and modern frontend development Expertise in JavaScript, TypeScript, and modern frontend tooling Experience leading or owning frontend architecture in production environments Commercial experience with React Native (nice to have) Solid understanding of responsive design, accessibility, and cross-browser compatibility Experience with state management solutions (Redux, React Query, Zustand, etc.) Strong knowledge of frontend performance optimization and best practices Familiarity with backend technologies (Java) and APIs for effective full-stack collaboration Experience with version control systems (Git) and collaborative development workflows Familiarity with AI frameworks and tools, or strong interest in developing expertise in this area Experience with AI-assisted programming and implementing AI-powered features is a plus Client – why choose this particular client from the Jit portfolio? Our client is an innovative, international technology company operating in the proptech and construction tech sectors. Their mission is to make building projects more collaborative and efficient worldwide. They have created a modern cloud platform that enables effective management of project data throughout the entire building lifecycle – from planning and design, through construction, to maintenance. The company operates globally and collaborates with leading partners in the architecture, engineering, and construction industries. Its solutions are built on open standards, ensuring smooth integration with other tools and easy access to information for all project participants   About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.