Senior Design Engineer, Design System

At Celonis, design has to scale across a complex, enterprise-grade process intelligence platform, and increasingly, it has to scale to machines as well as people.

Key Responsibilities

• Design and build production components in Angular and TypeScript, our design system is built in Angular and we may adopt React over time, on a foundation of rock-solid HTML and CSS (semantic markup, ARIA, and modern CSS custom properties driving design tokens).
• Own interaction decisions, component design, and front-end architecture end-to-end, independently translating ambiguous requirements into thoughtful, usable UX.
• Translate complex process-intelligence data and AI-driven behaviors into clear, intuitive, high-performance operator experiences.
• Set the technical and craft standard for front-end quality, polish, motion and animation, performance, and accessibility, across the team.
• Drive rapid prototyping to explore novel interaction concepts and turn ambitious design visions into distinctive, testable experiences.
• Collaborate with designers, PMs, and engineers to derive and evolve the design system through a healthy contribution model.
• Make the system agent-ready: maintain tokens-as-code in the W3C DTCG format (Style Dictionary or similar) and structure component metadata, docs, and APIs so AI coding agents can consume them as reliable context.
• Author and maintain Figma Code Connect mappings so Figma components link cleanly to their coded counterparts for engineers and agents alike.
• Build evals as guardrails, visual-regression, accessibility, and token-compliance checks in CI, so generated and contributed UI meets the bar before it ships.
• Use AI tooling daily (Figma Make, v0, Cursor, Claude Code, Copilot, or similar), applying senior design and engineering judgment to critique and correct the output.
• Lead system initiatives and mentor designers and engineers contributing to it.

Requirements

• Around 5–8 years across design engineering / UX engineering / front-end, including significant hands-on work building a design system or component library in a SaaS or B2B environment.
• Excellent UX instincts with strong attention to interaction detail and usability, you can own design decisions independently, with minimal oversight.
• Strong production front-end skills in Angular and TypeScript with rock-solid HTML and CSS fundamentals; experience with (or genuine openness to) React is a plus.
• Deep understanding of design token architecture (primitive → semantic → component tiers) and modern token pipelines.
• Strong Figma fluency and comfort moving fluidly between design and code.
• Demonstrated accessibility expertise (WCAG 2.2) implemented in code.
• Hands-on fluency with AI design and coding tools, and an opinionated, responsible point of view on using them.
• A strong product mindset and bias toward ownership, plus the communication and leadership of a senior IC.