Senior UI/UX Engineer- Quantum Computing (m/w/d)

Entangled Future; Wilhelmshausen; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Competitive salary

Flexible working hours

Team events

Professional development

Wellness benefits

Bike leasing

Job summary

eleQtron seeks a Senior UI/UX Engineer to own the end-to-end experience of our quantum computing platforms, from customer-facing web interfaces to internal lab tools. You will set design direction, build a shared component library, and collaborate with engineers and scientists to ship coherent, accessible products.

The role emphasizes design leadership, hands-on prototyping, and a strong design system mindset, with opportunities to influence product strategy and user research across complex,

Qualifications

• 5+ years of professional experience in product or interaction design.
• Proficient with TypeScript and React; includes component testing and Storybook.
• Strong skills with Figma; daily design toolkit usage.

Responsibilities

• Own the end-to-end design direction for our customer-facing cloud platform and internal operator interface, ensuring coherence as one product family.
• Run research by interviewing operators and physicists, observing calibration workflows, and translating findings into design decisions.
• Produce wireframes, interactive prototypes, and high-fidelity designs for both surfaces.
• Build and own our design system as production-ready, tested components used by engineers.
• Make dense telemetry and calibration data legible by defining visualization patterns.
• Validate what ships by running usability tests and maintaining design quality.
• Shape APIs with backend and platform engineers, advocating for user needs early.
• Set standards for accessibility, usability, and visual consistency across the team.

Skills

TypeScript

React

Figma

Wireframes

Usability testing

Tools

Storybook

Job description

Senior UI/UX Engineer- Quantum Computing (m/w/d) at eleQtron, Siegen, Nordrhein-Westfalen, Germany. A senior-level full time position in the Quantum Firmware team, listed under software engineering.

We are looking for a Senior UI/UX Engineer (m/f/d) to join us in Hamburg or Siegen and own the end-to-end experience of working with our quantum computers, from the customer-facing web platform for submitting quantum programs and exploring results to the internal interfaces used to run, monitor, and calibrate our machines in the lab. You set the design direction for both, and you build the component library that both are made of.

This is a design-led role for someone who is not satisfied handing over a Figma file and hoping for the best .

What you can expect from eleQtron

• Competitive salary: We value our team members and therefore provide remunerations that reflect this, additionally rewarding achievements
• Flexible working hours : We offer personal freedom through a variety of flexible work schedules
• Team spirit: In our international and diverse team, and with our regular team events, having fun at work is simply part of the culture
• Further development: We want to grow together and so we offer our team members needs-based, individualized further training as well as plenty of room for personal development
• Wellness Package : We offer health-promoting benefits such as fitness programs like UrbanSportsClub to support your well-being
• Bike Leasing: Stay Mobile and Sustainable with Our Company Bike Leasing Program
• Moving Benefits: A warm welcome! We are happy to support employees who move for us with a bonus
• At the forefront : Work at the forefront of technology, where academic research meets commercial applications
• Modern workplace: We have a high-quality infrastructure with laboratory space, offices and meeting rooms

Responsibilities

• Own the design direction for our customer-facing cloud platform and our internal operator interface, and keep them coherent as one product family
• Run the research: interview operators and physicists, observe real calibration workflows in the lab, and turn what you learn into design decisions
• Produce wireframes, interactive prototypes, and high-fidelity designs for both surfaces
• Build and own our design system as production-ready, tested components in code - the shared foundation that our engineers assemble applications from
• Make dense telemetry and calibration data legible: define the visualisation patterns that let operators see what matters at a glance
• Validate what ships: run usability tests on implemented interfaces and hold the quality bar between design intent and delivered product
• Shape APIs together with backend and platform engineers, advocating for the user's perspective early in the process
• Set the standard for accessibility, usability, and visual consistency, and raise the design literacy of the wider engineering team

Requirements

• 5+ years of professional experience in product or interaction design, with a portfolio of shipped digital products
• Ability to build your own designs as reusable components in production code: confident with TypeScript and React, including component testing and documentation (e.g. Storybook)
• Mastery of the full design toolkit — research, information architecture, interaction design, prototyping, visual design — with Figma as your daily driver
• Demonstrated experience designing for complex, data-heavy, or expert-user products rather than consumer apps
• Track record of building or substantially owning a design system
• Experience planning and running usability testing, and acting on what it tells you
• Ability to collaborate effectively with domain experts, and to turn ambiguous problems into clear designs
• Strong adaptability and a quick learning mindset
• Good proficiency in English (written and spoken)

Nice to Have

• Real-time data in the browser (WebSockets, streaming telemetry)
• Experience with scientific, industrial, or laboratory control software
• Accessibility standards (WCAG) applied in practice
• Experience mentoring designers or leading design in a cross-functional team
• Prior experience with quantum computing or other deep-tech domains.