Senior React Developer

Location: Kraków, Poland
Work model: Hybrid, 6 days per month in the Kraków office
Recruitment process: Test + 1-hour live coding interview in React
Contract: B2B, long-term

About the role

We are looking for a Senior React Developer to join the Business Services Digital team. The team delivers IT solutions and support for Business Services within a large-scale, international banking environment.

This is a great opportunity for an experienced frontend engineer who enjoys building high-quality digital products, working in Agile teams, and contributing to modern, scalable web applications in a complex enterprise setting.

Your responsibilities

• Design, develop, test, and implement modern web-based applications

• Build rich, responsive, and pixel-perfect user interfaces using React

• Maintain a delivery-oriented approach across application development and supporting software/data infrastructure

• Manage software releases and support existing systems in production

• Ensure code quality, maintainability, and full test coverage

• Contribute to and promote frontend best practices and engineering standards

• Mentor other team members through knowledge sharing and technical guidance

• Deliver solutions on time and within budget

• Follow internal development methodologies, security standards, and documentation requirements

• Drive productivity and quality improvement initiatives

• Coordinate releases through to Production

Required experience

• Proven track record in delivering web applications

• Strong experience building rich frontend/UI layers

• Excellent knowledge of React.js

• Excellent knowledge of JavaScript and TypeScript

• Strong knowledge of HTML5, CSS3, and CSS preprocessors such as SASS or Less

• Experience with frontend testing frameworks such as Jest and React Testing Library

• Experience creating pixel-perfect UI based on detailed specifications

• Experience designing responsive interfaces for desktop and mobile applications

• Good understanding of accessibility and cross-browser compatibility

• Good knowledge of data marshalling/de-marshalling using JSON and XML

Nice to have

• Experience working with Git

• Familiarity with IntelliJ and VS Code

• Good understanding of responsive web techniques

• Knowledge of Node.js / Express

• Experience designing digital products in the onboarding or banking domain

What makes this opportunity interesting

• Work on impactful digital solutions in a global banking environment

• Join a mature engineering team focused on quality, delivery, and best practices

• Contribute to modern frontend development using React and TypeScript

• Competitive B2B rate