Senior Frontend Engineer

Salary: 1000 - 1400 pln/md B2B Location: Warsaw (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 Senior Frontend Engineer , you'll drive the innovation and evolution of our frontend platform, working primarily with React and our web-based applications. You'll have the opportunity to shape our frontend architecture and grow into a frontend leadership position as we scale. You'll work closely with the design team to ensure complex construction workflows are intuitive and engaging for our users. This role combines deep frontend expertise with product thinking, requiring someone who understands both the technical challenges of building scalable web applications and the user needs in the construction industry . As the client expand their AI capabilities, you'll play a crucial role in creating intelligent, user-friendly interfaces that make AI features accessible to construction professionals. 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 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 other engineers in frontend best practices, modern development techniques, 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're energized by complex challenges and finding elegant solutions Ownership mentality: You take responsibility for your work and see projects through to completion High agency: You proactively identify opportunities, take initiative, and drive solutions forward without waiting to be told what to do Growth orientation: You continuously learn and adapt to new technologies and approaches AI enthusiasm: You have a keen interest in leveraging AI tools to enhance productivity and create innovative features Communication skills: You articulate technical concepts clearly to both technical and non-technical stakeholders Product thinking: You care deeply about the impact of your work on users and the business Adaptability : You're comfortable learning new technologies and working across our entire tech stack as needed Learning agility : You can quickly get up to speed with unfamiliar technologies or codebases Collaborative approach: You work well with others and contribute positively to team dynamics Technical Skills Strong experience with React and modern frontend development Proficiency in JavaScript, TypeScript, and modern frontend tooling Commercial experience with React Native (important) Understanding of responsive design and cross-browser compatibility Experience with state management solutions ( Redux, React Query, Zustand, etc.) 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) 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.