Senior UX Engineer — AI-Driven UI for Complex Workflows

Relativity; Kraków; Hybrid; PLN 173,000 - 259,000; Full time

Benefits offered by this job

DTO

Parental leave

Equity program

Job summary

Relativity is seeking a Senior UX Engineer to design, build, and refine React-based experiences for complex workflows. You’ll collaborate with Designers, PMs, and Engineers, prototype AI-driven patterns, and ship production-ready UI with strict accessibility and quality checks.

You will help define AI-generated UI standards and build tooling to enforce them, mentor engineers, and raise UX quality across teams in a fast-moving, transparent culture.

Qualifications

• 5+ years in UX engineering, front-end engineering, or design systems at scale.
• Hands-on with design systems, tokens, and reusable components.
• Experience with accessibility (WCAG AA) and inclusive design in production.

Responsibilities

• Design, build, and ship React-based administrative experiences with accessibility and responsiveness built in.
• Define AI-generated UI standards and create tooling to enforce them.
• Mentor engineers, advocate for UX quality, and drive cross-team consistency.
• Prototype with AI-native tools, and ensure usability through testing and iteration.

Skills

UX engineering

Design systems

Design tokens

Reusable components

WCAG AA

Figma

Code review

CI/CD

Communication

Accessibility testing

Tools

React

TypeScript

HTML

CSS

CI/CD tooling

Job description

Relativity is seeking a Senior UX Engineer to design, build, and refine React-based experiences for complex workflows. You’ll collaborate with Designers, PMs, and Engineers, prototype AI-driven patterns, and ship production-ready UI with strict accessibility and quality checks.

You will help define AI-generated UI standards and build tooling to enforce them, mentor engineers, and raise UX quality across teams in a fast-moving, transparent culture.