Senior React Front-End Developer – Platform Integration and Design Systems

Empower innovation at scale — shape the future of front-end technology!

Warszawa-based opportunity with hybrid work model

As a Senior React Front-End Developer – Platform Integration and Design Systems, you will be working for our client, a leading financial institution, delivering robust and scalable front-end solutions. Join a team committed to building advanced platform components that empower seamless user experiences and drive digital transformation.

Your main responsibilities:

• Develop and maintain platform-wide React libraries and components aligned with the Bank’s Design System.
• Implement and optimize generic functionalities and innovative technical solutions for front-end teams.
• Write and sustain comprehensive unit and end-to-end tests to ensure high-quality deliverables.
• Ensure consistency, performance, and accessibility standards are upheld across all solutions.
• Collaborate with cross-functional platform teams and UI/UX designers to refine components and share best practices.
• Provide technical guidance and support to product teams utilizing the platform solutions.
• Maintain clear and detailed documentation for developed components and functionalities.

You're ideal for this role if you have:

• Over 5 years of professional experience in front-end development with React.
• Strong expertise in JavaScript, TypeScript, NPM, and CSS.
• Proven experience in building and maintaining scalable front-end applications and NPM packages.
• Strong knowledge of unit and end-to-end testing (e.g., Jest, Testing Library, Cypress).
• Proficient use of the Git version control system, including managing branches and commits (rebase, cherry-pick, revert, squash, changing commit order and descriptions).
• Good understanding of accessibility principles (a11y), WCAG standards, and building accessible interfaces.
• Experience working with Jira, Confluence, and Bitbucket.

It is a strong plus if you have:

• Experience working with design systems or contributing to their development.
• Knowledge of microfrontend architecture and integration challenges.
• Experience with hybrid mobile applications such as React Native, Capacitor, or WebView.
• Familiarity with AI tools or agents in software development projects.

Language required for the role:

• Good command of Polish and Communicative English.

Eligibility for the role:

• Only candidates with an existing legal right to work in the European Union will be considered for this role.

#MAKEYourCareerBETTER

Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.