Your tasks

Measurement instruments that ensure quality worldwide – and you shape how people interact with them. Based at our Titisee-Neustadt or Berlin office and as part of our UX team, you transform complex measurement technology into intuitive digital experiences: from the app that technicians use on-site to capture temperature readings, to the cloud platform for measurement data management. Here's what you'll be working on:

• Interface design – from app to instrument: You design user interfaces for mobile apps (iOS/Android), web applications and device displays. You translate complex measurement processes into clear, intuitive interaction concepts – using wireframes, interactive prototypes and high-fidelity designs in Figma.
• User research & usability testing: You own the entire discovery process – from field observations with service technicians and user interviews to data analysis and moderated usability tests – turning insights into the foundation of every design decision.
• Design systems: You build and maintain a cross-platform design system – ensuring components, patterns and style guides stay consistent across all Testo products and accelerate development.
• Product development as a team: You work closely with product owners, product managers and developers, bring the user perspective into refinements and sprint reviews, and see your designs through to release.
• UX culture & design thinking: You facilitate workshops, promote user-centred thinking across business units and strengthen the understanding that thoughtful user experience is a real competitive advantage – even in B2B measurement technology.

Our benefits

• Flexibility is key: Enjoy flexible working hours and the option to work remotely in a hybrid setup.
• Room for maneuver: We set shared goals that you pursue independently.
• Ideas and sense: Contribute your expertise – your input is valued and appreciated. The result of your work is products that protect the environment and health.
• Career development: We offer tailored training opportunities and diverse, including international, career prospects. Your professional development matters to us.
• Modern technologies and digital communication: State-of-the-art technology and digital media are a given, enabling efficient communication.
• Team: Friendly, always supportive people to look forward to every morning – more than just colleagues.

Our benefits

Your profile

• UX/UI experience: At least 2 years of experience in UX/UI design for digital products – ideally in a technical B2B environment. You master the full UX process from research (customer interviews, usability testing, personas, user journeys) to the final design solution.
• Design systems: Strong proficiency in Figma – especially building and maintaining component libraries, tokens and variants.
• Prototyping: Experience creating low- to high-fidelity prototypes and clickable user flows as a communication and validation tool – both internally and in user tests.
• Cross-functional collaboration: You communicate confidently with different technology teams, product owners and customers, making complex topics accessible and actionable.
• Passion for UX: You're driven by creating outstanding user experiences, bring that energy into workshops and customer interactions, and champion user-centred thinking across the organisation.
• Work style: Independent, curious and collaborative – you think in user problems, not features, and drive ideas forward without positional authority.
• Language skills: Fluent English. German is a plus.