Senior UX/UI Developer

Location: Warsaw / Hybrid / 3 days on site
Contract Type: B2B 12 months
Rate: 150-160PLN/hour

What you’ll do:

• Lead the design and front-end development of client-facing enterprise portals.

• Turn business requirements into wireframes, prototypes and high-fidelity UI designs.

• Build scalable, reusable front-end components and UI libraries using React.js and TypeScript.

• Establish and maintain UI/UX standards and design system consistency across applications.

• Work closely with product, business and backend teams to deliver technically feasible solutions.

• Review code and support developers with both technical and design feedback.

• Ensure responsive, accessible and high-quality user experiences across portal applications.

• Support usability testing, design validation and continuous improvement.

• Mentor mid-level developers across both UX and front-end development.

What you bring:

• 14+ years of overall software/product design experience.

• 8+ years of hands-on React.js and TypeScript development.

• Strong UI/UX design and prototyping experience, ideally with Figma and design systems.

• Proven ability to translate requirements into production-ready, responsive and accessible interfaces.

• Strong understanding of front-end architecture, component design and modern development practices.

• Experience with code reviews and technical/design leadership.

• Excellent communication skills and confidence working with both business and technical stakeholders.

Nice to know:

• Docker, Kubernetes or OpenShift and modern CI/CD environments.

• Java or .NET knowledge.

• Micro Frontend architectures such as Module Federation or single-spa.

• Basic SQL/database knowledge.

• Experience in financial services, fund administration or transfer agency environments.

Interested? Apply now and join a team building modern enterprise portal experiences.