Frontend Developer

About I4B

I4B sp. z o.o. is a technology company based in Koszalin, Poland, specializing in e-mobility and automotive projects. We build data-driven digital solutions where clean design and functional user interfaces are key. Our backend handles large volumes of complex data — your mission will be to provide clear, intuitive frontend to make it easy for the user to take advantage of those data.

Frontend Developer – Job Opening

We’re looking for a creative and detail-oriented Frontend Developer to join our team. You will be responsible for designing and implementing web and mobile interfaces that bring clarity to complex data and support users in making smart, informed decisions. If you enjoy turning technical challenges into elegant frontend solutions, we’d love to hear from you.

Requirements:

• 3+ years of experience with commercial projects

• Strong knowledge of React.js and its ecosystem (hooks, context, component-based architecture).

• Solid hands-on experience with Material UI (MUI) and Material Design – ability to build clean, consistent UIs.

• Experience working with Figma – translating designs into pixel-perfect, production-ready code.

• Strong sense of aesthetics – you deliver components that don’t need polishing afterwards.

• Practical approach to estimations – able to realistically assess the effort needed for a task.

• Basic understanding of development workflows (Git, code reviews, working in sprints).

What you’ll do

• Build and maintain React.js applications used by our clients.

• Implement designs from Figma into pixel-perfect, production-ready UIs.

• Work with Material UI (MUI) and Material Design to create consistent and elegant components.

• Collaborate with the team to estimate tasks realistically and deliver on time.

• Take ownership of your code – writing clean, reusable components that don’t need rework.

• Contribute ideas to improve UX and overall product quality.

• Actively participate in the analysis process by listening, asking questions, and challenging ideas within the team

• Gather and document feedback on design proposals from users and stakeholders

• Take part in backlog refinement sessions and design-related discussions

Nice to have:

• Experience in the automotive or e-mobility sector

• Experience designing eCommerce platforms, RPA systems, or similar business-critical applications

• Ability to design complex, data-driven user interfaces

• Familiarity with enterprise JavaScript frameworks such as Next Js, Ext JS, Telerik, or DevExpress

• Background in developing white-label solutions

• Knowledge of React performance optimization

Check out our benefits!

• Professional development 

• Training & upskilling budget

• Modern office with a recreation zone, gym, games area, and chill out spaces

• Social events (bowling, football matches, bike trips, canoeing, team dinners) 

• Access to the MyBenefit platform and optional MultiSport co-funding

Our recruitment process:

1. Send your CV

2. Our HR department will reach out to you

3. Technical interview with our expert

4. Sign the contract!