Senior Frontend Engineer

Senior • Hybrid

$20,000 - $28,000/mo

Warsaw, Poland

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.

Jit Team

Jit Team is a Polish company that operates in the IT industry, focusing on creating highly specialized teams for clients worldwide. With over 700 experienced experts, Jit Team emphasizes the human factor in IT, prioritizing people and their development. The company is deeply committed to its philosophy of "The Human factor of IT," which is reflected in its charitable and educational activities, such as supporting students with learning equipment and offering internships to launch IT careers. Jit Team has been active for over 15 years and is known for its strong relationship with a leading financial group in the Nordic countries, serving as their premier partner in Poland. The company values work-life balance, feedback culture, and international collaboration, often working in teams that provide exposure to the English language. Jit Team is also involved in supporting local initiatives, ensuring the circulation of positive energy within the community.