Senior UI Designer

October 8, 2026

Remote

Senior

Warsaw

Worth knowing

English is required

Description

Totalizator Sportowy is looking for a Senior UI Designer to craft high-quality interfaces for digital products such as lotto.pl, totalcasino.pl and mobile applications. The role covers creating high-fidelity mockups, prototypes and concepts, evolving the design system and ensuring visual consistency, responsiveness and accessibility across all digital channels. The designer will translate user needs and business requirements into intuitive solutions and collaborate closely with UX designers, product owners and development teams.

Responsibilities

Design high-quality interfaces for digital products including web portals and mobile applications
Create high-fidelity mockups, prototypes and concepts for new and evolving features
Develop the design system, component libraries and UI standards
Ensure visual consistency, responsiveness, accessibility and quality of user experiences across all digital channels
Translate user needs and business requirements into intuitive and visually appealing solutions
Collaborate with UX designers, product owners, business teams and developers
Participate in product optimization based on research, data and user feedback
Support development teams during implementation and conduct design reviews

Requirements

Higher education
Minimum 4–5 years of experience as a UI Designer or in a similar role
Very good portfolio of web and mobile projects
Experience designing complex digital products and collaborating with development teams
Very good knowledge of UI principles, typography, layout, responsiveness and interaction design
Advanced Figma skills and experience creating and evolving design systems
Good knowledge of UX, prototyping and digital accessibility / WCAG principles
English language skills sufficient to work with documentation
Independence, proactivity and ability to argue design decisions

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