Senior/Lead React Developer

Project/Client: Banking Location: Baltic states + Poland Seniority: Senior / Lead Language: English Role Overview: As a Senior Frontend Engineer , you will play a key role in building a modern React -based micro-frontend architecture for banking systems. You will design and implement scalable frontend modules, develop high-quality user interfaces for Back Office applications, and ensure performance, security, and maintainability across the platform. This is a hands-on role combining technical leadership and active development, suited for an engineer experienced in React , TypeScript , and complex enterprise environments, working with backend integrations via REST APIs and GraphQL . Key Responsibilities: Lead and mentor a team of React developers, providing technical guidance and conducting code reviews Design and implement scalable micro-frontend architecture using modern frontend tooling Develop high-quality frontend solutions using React , TypeScript , and state management ( Redux , Zustand , Context API ) Build and maintain reusable UI components, shared libraries, and design systems Collaborate with backend teams on integrations via REST APIs and GraphQL Ensure best practices in performance, security, and accessibility Contribute to CI/CD , automated testing ( Vitest , React Testing Library , Playwright ), and code quality improvements Utilize modern development workflows, including AI-assisted tools (e.g., Copilot , Bmad workflow ) Must-Have Requirements: 5+ years of exp