SeniorLead React Developer

Senior/Lead React Developer

Project/Client: Banking

Location: Baltic states Poland

Start Date: ASAP

Seniority: Senior / Lead

English: upper-intermediate

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 experience in frontend development with strong expertise in React

Strong proficiency in TypeScript and modern JavaScript (ES6)

Hands-on experience with micro-frontend architecture

Experience with state management solutions (Redux Zustand Context API)

Experience using AI-assisted development tools (e.g. Copilot)

Solid understanding of CSS SASS and responsive design principles

Experience with testing frameworks such as Vitest React Testing Library and Playwright

Familiarity with CI/CD Git and Agile development practices

Strong understanding of REST APIs GraphQL and frontend-backend integration

Experience mentoring developers and leading technical decisions

Nice to Have:

Experience in banking or enterprise environments

Knowledge of backend technologies such as Java Spring Boot Spring Security

Familiarity with event-driven architectures (e.g. Kafka)

Ready to Join
We look forward to receiving your application and welcoming you to our team!