Job description:
Location:
Kaiseraugst, Switzerland (up to 3 days remote)
Contract:
10 months, possible extension
Workload:
80-100%
Start:
ASAP - latest 01 December 2025
About The Role
We are looking for a
Senior UX/UI Engineer
to join a skilled engineering team working on large-scale application hosting. The focus is on building user-friendly, high-performing web applications that integrate with complex backend systems and cloud infrastructure.
Responsibilities
* Develop scalable and reliable features using React, TypeScript, and modern CSS
* Contribute to the full lifecycle: wireframing, design, development, deployment, and maintenance
* Work closely with product managers and backend engineers to deliver clean, maintainable code
* Integrate with REST APIs to deliver robust user-facing features
* Ensure best practices in performance, accessibility, testability, and code quality
Requirements
* 5+ years building complex, user-facing web applications
* Strong expertise in React (Hooks, Context, State Management) and TypeScript
* Experience in UI/UX design (wireframes, prototypes, high-fidelity designs)
* Familiarity with Kubernetes/containerization
* Proficiency in CSS frameworks, Sass/Less, styled components
* Knowledge of ViteJS, TanStack Query, Zustand
* Hands-on with CI/CD (GitLab CI), REST APIs, and testing frameworks (Vitest, React Testing Library)
* Excellent communication skills in English (German is a plus)