Senior React Front-End Developer – Financial Services

ITDS Polska Sp. z o.o.; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Job summary

ITDS Polska Sp. z o.o. seeks a Senior React Front-End Developer for a Financial Services client in Warszawa, with a hybrid work model (2 days in office).

You will build and maintain platform-wide React libraries, drive scalable front-end components, and collaborate with UI/UX teams to deliver robust user experiences. The role requires 5+ years of React front-end experience, strong JavaScript/TypeScript skills, and solid testing with Jest, Testing Library, and Cypress.

Qualifications

• Over 5 years of professional front-end experience with React.
• Strong JavaScript/TypeScript and CSS expertise.
• Experience building scalable front-end libraries and packages.
• Experience in financial services or banking domain is a plus.

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.

Skills

Polish

Communicative English

Senior

Tools

React

TypeScript

JavaScript

CSS

NPM

Jest

Testing Library

Cypress

Git

Job description

Senior React Front-End Developer – Financial Services

• Warszawa
• Hybrid
• CSS
• Cypress
• Git
• Javascript
• Jest
• NPM
• React
• Testing Library
• Typescript
• Polish
• Senior
• Banking
• Developer

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

Warszawa-based opportunity with hybrid work model (2 days from the office)

As a Senior React Front-End Developer – Financial Services, 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.
• Excellent command of writing and maintaining unit and E2E tests (e.g., Jest, Testing Library, Cypress).
• Proficiency in Git version control, including branch management and advanced operations (rebase, cherry-pick, revert, squash).
• Good understanding of Web Accessibility (WCAG standards) and inclusive design principles.
• 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.