UX Expert (UX/UI, Web & Mobile, Design Systems)

Quick Facts

• Role: UX/UI Expert

• Focus: Web and mobile applications, Design System, usability testing

• Work model: Remote (client-dependent; Warsaw office possible by request)

Description

You will design user experiences for web and mobile apps, creating wireframes, hi‑fidelity mockups, and interactive prototypes for new functionality. The role includes building and evolving a design system (Digital Style Guide), analyzing user needs, running usability research, and ensuring delivery matches design assumptions. You will also support digital self-service and sales-related initiatives and create materials for mobile app stores.

Responsibilities

• Design UX for web and mobile applications

• Create wireframes, interactive prototypes, and hi‑fidelity mockups

• Develop and evolve information architecture

• Design user interfaces aligned with UX/UI standards and brand visual identity

• Prepare and maintain design-system components and element libraries (Digital Style Guide)

• Analyze user needs and recommend improvements to digital channels

• Conduct usability studies and analyze test results and user feedback

• Collaborate with analysts, developers, and business stakeholders

• Verify that implemented features match mockups and design assumptions

• Participate in application testing and support solution acceptance

• Ensure consistent user experience across apps and digital channels

• Analyze market trends and competitor solutions; apply UX/UI best practices

• Prepare graphic materials supporting product development and promotion, including mobile store assets

• Support initiatives improving sales and customer self-service channels

Requirements

• Minimum 5 years’ experience in UX/UI design for web or mobile applications

• Proficiency with Figma, Sketch, Adobe XD (hi‑fidelity mockups and prototypes)

• Ability to apply design-system work and Nielsen heuristics

• Experience planning and conducting usability tests before and after feature rollout

• Skills in analyzing quantitative and qualitative data (validate intuitiveness and identify drop-off points)

• Experience collaborating with development and testing teams (test scenarios and acceptance criteria)

• Knowledge of accessibility principles (WCAG) and inclusive design

• English proficiency

Benefits

• Remote work flexibility with the option to work on-site in Warsaw upon client request