Senior React Developer (with Node)

Localization: Warsaw, city center, hybrid 3 days x week

As a Senior React Developer, you will be working for our client, a leading global financial institution supporting diverse business units with scalable, modern digital interfaces. You will be part of a dedicated UI Libraries team, responsible for driving the adoption of cutting-edge UI technologies and shaping the firm's design system. Your work will directly influence the visual consistency and usability of hundreds of internal and external applications across multiple platforms, ensuring a cohesive and accessible user experience. 

Your main responsibilities:

• Develop and maintain reusable components for a cross-platform UI library
• Collaborate with design and engineering teams to improve the visual language and design system
• Evaluate and introduce new UI technologies to enhance development workflows
• Ensure high accessibility standards (WCAG) across all frontend components
• Support internal teams in implementing consistent UX across web and mobile platforms
• Participate in code reviews and advocate for best coding practices and testing strategies
• Troubleshoot UI-related issues across applications and suggest long-term solutions
• Lead integration efforts with SSR frameworks like NextJS or Gatsby
• Optimize performance and responsiveness of user-facing features
• Contribute to technical documentation for shared frontend libraries

You're ideal for this role if you have:

• 5+ years of hands-on experience with some of the latest technologies to build rich web applications
• Strong hands-on experience with modern front-end technologies such as React (mandatory), Angular, Typescript, and comfortable learning new languages
• Experience with clean code and testing methodologies
• Superior interpersonal, communication and organization skills
• Ability to work on multiple project simultaneously in a fast-paced, collaborative environment
• Self-motivated and self-managed with a high degree of analytical ability, innovation and intellectual curiosity

Nice to have:

• Bachelor's degree in Computer Science
• Experience working in delivery driven agile SDLC covering research, design and engineering
• Hands-on experience with PWAs, CSS-in-JS, mobile app development, accessible components and websites
• Experience with SSR frameworks, such as NextJS or Gatsby
• Experience with front-end build tools and testing libraries including Webpack