UI/UX Designer (Service Design) - Mobile App & Backoffice

Intro

We are looking for a hands‑on UI/UX Designer (mid–senior level) to take end‑to‑end ownership of the UI/UX redesign of our mobile app (iOS & Android) and the UX redesign of the backoffice .
You will be the main design owner for the app experience and a key contributor to the backoffice UX , working closely with the Head of Service Design and a dedicated developer to translate user needs, business goals, and technical constraints into high‑quality, coherent product experiences.
This role sits within the Service Design team and combines strong execution , user‑centered thinking , and close collaboration across design, development, and stakeholders .

• Lead and execute the UI/UX redesign of the mobile app (iOS & Android)
• Contribute to the UX redesign of the backoffice , ensuring usability, clarity, and efficiency
• Ensure consistent, scalable, and user‑centric experiences across customer‑facing and internal tools
• Anchor design decisions in user research, testing, and service design principles

What You'll Do

UI/UX Design & Execution (App & Backoffice)

• Own the end‑to‑end UI/UX design of the mobile app (iOS & Android)
• Contribute to and support the UX redesign of the backoffice , focusing on workflows, usability, and efficiency
• Translate user needs, insights, and requirements into user flows, wireframes, and high‑fidelity designs
• Create and maintain interactive prototypes to validate concepts and support development
• Ensure usability, accessibility, and visual consistency across all touchpoints

• Contribute to and help maintain the design system , ensuring consistency across the app and backoffice
• Define and document reusable components, patterns, and interaction guidelines
• Work closely with development to ensure correct and efficient implementation of the design system

• Plan and execute user research activities (e.g. interviews, usability tests, validation sessions)
• Support and collaborate on research initiatives led by others (service design, product, or external partners)
• Synthesize insights into clear findings and actionable design improvements

• Define UX‑focused test plans in collaboration with development and QA
• Support test execution by reviewing results, identifying issues, and iterating on designs
• Ensure design quality through pre‑release checks and ongoing improvements

• Work closely with:
  • Head of Service Design (direction, priorities, quality)
  • Developer (handoff, feasibility, implementation, iteration)
• Prepare and deliver occasional stakeholder presentations to explain design decisions and outcomes
• Provide light mentoring and design guidance to create a design culture

What You'll Bring

Experience & Skills

• Mid‑level to senior experience as a UI/UX Designer, Product Designer, or similar role
• Strong hands‑on experience designing mobile apps for iOS and Android
• Experience contributing to or redesigning backoffice / internal tools
• Proven ability to own and drive a product area independently
• Strong proficiency in Figma (components, libraries, collaboration)
• Experience with prototyping tools for validation and developer handoff
• Familiarity with design systems and scalable UI patterns
• Experience planning and conducting user research and usability testing
• Working knowledge of Adobe Creative Suite , especially:
  • Photoshop
  • InDesign
• Strong collaboration skills with developers and non‑design stakeholders

• User‑centered and evidence‑driven
• Comfortable balancing autonomy with collaboration
• Pragmatic: able to move from discovery to delivery
• Clear communicator who can explain design rationale
• Comfortable in start up environment

What You'll Get

• A collaborative environment where teamwork is at the heart of how we work
• A truly international and diverse team
• A modern workspace in Berlin Mitte within a collaborative coworking environment, with flexible hybrid and remote working options
• 30 days of annual leave
• A 50€ monthly mobility budget or Deutschland Ticket
• A personal learning & development budget to support your growth
• Regular team get-togethers and informal company events
• The opportunity to experience the products we build
• The chance to grow with a young and evolving company

About us

ENYRING GmbH, a new technology company founded by Yamaha Motor Corporation Ltd., offers swappable batteries for eBikes on a subscription basis to individuals and companies. Together with European partners, ENYRING is creating a closed loop in which recycled materials are used to manufacture new products. This new initiative promotes a sustainable, recycling-oriented society and reduces time and financial stress for users of electric bicycles.

Even if you don’t meet all the criteria listed in the job description, we’d still love to hear from you – you might bring other strengths that are a great fit for our team