Senior UX/UI Developer

Location: Warsaw / Hybrid / 3 days on siteContract Type: B2B 12 monthsRate: 150-160PLN/hourWhat 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.