Senior Frontend Developer (React / TypeScript) at DCG – Warszawa | Jobyssey

Responsibilities:

Design and develop front-end features using React.js, TypeScript and modern front-end technologies
Implement approved UI/UX designs in line with the established Design System and development standards
Build reusable UI components and contribute to shared component libraries
Collaborate closely with Senior UI/UX and Front-End specialists to ensure accurate and consistent implementation of designs
Integrate front-end applications with REST APIs, GraphQL APIs and backend microservices
Support compliance with web accessibility standards, including WCAG
Identify and raise potential usability, consistency and design issues during implementation
Troubleshoot and resolve UI defects and production issues
Develop and maintain unit and integration tests for front-end components
Participate in code reviews, sprint planning, refinement sessions and other Agile ceremonies

Requirements:

8+ years of professional software development experience, including at least 6 years of hands‑on React.js development
Strong practical experience with React.js and TypeScript
Experience developing enterprise‑scale front-end applications
Good understanding of modern front-end architecture and component-based development
Experience with state management solutions such as Redux, Context API or similar technologies
Ability to work with UI/UX designs and tools such as Figma, translating designs into accurate front-end implementations
Experience integrating applications with REST and/or GraphQL APIs
Basic knowledge of WCAG and web accessibility principles
Experience with automated front-end testing, including unit and integration testing
Familiarity with CI/CD pipelines and containerized application environments
Good communication skills and ability to collaborate with designers, developers and other stakeholders
Fluency in English (both written and spoken)

Nice to have:

Experience with Micro Frontend architecture, particularly Module Federation
Basic knowledge of SQL and relational databases
Experience working in financial services, banking or transfer agency environments
Previous experience working with enterprise-level design systems

Offer:

Senior Frontend Developer (React / TypeScript)

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