React Frontend Developer

Our Client is a fast-growing, international technology company that provides innovative digital solutions for the global market. They are currently expanding and developing their R&D center in Warsaw. They are a leader in AI-powered enterprise operations, delivering digital solutions and consulting services that drive value and transform businesses. They specialize in using advanced technology to streamline operations, improve efficiency, and unlock new revenue opportunities, particularly within the private capital markets. With over a decade of experience supporting high-growth companies, they bring deep domain expertise and a proven ability to turn technology into a strategic advantage.

• 6+ years of experience in JavaScript and TypeScript development
• A Bachelor's degree in Computer Science or equivalent is preferred
• Must know a modern front-end JS framework, such as React.js + Redux; Next.js is a bonus
• Hands-on experience with HTML5, CSS3
• Proficiency in writing cross-browser compatible code
• Understands OO concepts and design patterns, and their application to JavaScript development
• Knows functional programming paradigms
• Understands asynchronous programming paradigms and best practices
• Git and branch management knowledge
• Experience debugging front-end problems and knowledge of front-end debugging tools
• Familiarity with custom package creation and integration
• Experience with Agile methodologies and development practices
• Good communication skills and good organization skills
• Ability to work under pressure and deliver against tight deadlines

UI Development:

• Designing and developing responsive user interfaces using React

Testing & Integration:

• Implementing and maintaining TDD in applications and continuous integration
• Driving best practices in testing, accessibility, and performance optimization

Collaboration:

• Collaborating with a cross-functional team of project managers, project analysts, and sales staff to deliver high-quality, interactive products on time
• Collaborating cross-functionally with design, backend, QA, and product teams to deliver robust and user-centric solutions