UX/UI Designer (m/f/d)
adjoe is redefining the future of mobile ads. Powered by advanced AI, first-party data, and world-class engineers, we’ve perfected the offerwall experience for monetizing and scaling app publishers with solutions like Playtime and Arcade – now the fastest-growing rewarded advertising channel globally – driving incremental engagement, retention, and revenue.
At the same time, we’re breaking into programmatic advertising with the intelligent bidding system of adjoe Ads. Together, this ecosystem connects app developers to over 600 million users worldwide for scalable growth. Backed by a $100 million investment from Bertelsmann and operating from offices in Hamburg, Boston, Singapore, and Tokyo, adjoe is defining the next stages of app and ad experience – right now. Join us!
Meet Your Team: Rewarded Solutions
Our Rewarded Solutions team develops the technology behind adjoe’s innovative rewarded engagement products that serve over 57 million daily mobile users.
The team’s tech stack includes:
- Native Android (Java/Kotlin) and iOS (Swift) SDKs handling complex engagement flows
- Highly customizable offerwall applications built with React TypeScript
Our system matches each game with its ideal users, delivering rewards optimized for satisfaction. As part of this team, you’ll build engaging rewarded ad experiences that integrate seamlessly into top global apps—driving exceptional results for advertisers and monetizers alike.
Your Role
As a UX/UI Designer at adjoe, your main goal is to design and develop intuitive, user-centered digital experiences that drive engagement, retention, and growth. You’ll also design dashboards and tools that help analyze user behavior and business outcomes. You’ll collaborate closely with the Product and Development teams and report to the Design Lead.
Required Documents
Don’t forget your portfolio! We want to see your UX/UI skills in action when you apply.
What You Will Do
- Develop and maintain a deep understanding of users, their needs, behaviors, and motivations
- Design and develop intuitive, visually appealing interfaces for our mobile apps
- Collaborate with product managers, developers, and other stakeholders to define user flows, wireframes, prototypes, and high-fidelity designs
- Define key design hypotheses and work with product/data teams on A/B testing to iteratively optimize designs
- Conduct usability testing, user research, and analyze feedback to validate and improve design decisions
- Ensure consistency of design elements, styles, and branding across all touchpoints
- Contribute to and maintain the internal Design System, ensuring scalability, consistency, and accessibility
- Stay up-to-date with the latest UX/UI trends, tools, and technologies, and share your knowledge with the team
Who You Are
- 3+ years of experience in UX/UI design for mobile and web apps
- Proficient in Figma for design and prototyping (including high-fidelity, interactive prototypes)
- Experience creating and specifying motion and micro-interactions using tools like Lottie, Bodymovin, After Effects, or Jitter
- Strong understanding of user-centered design principles, UX methodologies, and design thinking
- Proven experience designing for mobile platforms (iOS & Android), with understanding of platform-specific patterns
- Excellent communicator who can explain design decisions to cross-functional teams
- Strong Product Mindset – able to balance user needs, business goals, and technical constraints
- Creative and analytical problem solver with a proactive attitude
Fuel for the Journey: Benefits to Support Your Ambitions
- Invest in Your Future: Regular feedback and a development program to expand your skills and achieve your career goals
- Easy Arrival to adjoe: Full relocation support to Hamburg, including visa assistance and a relocation bonus to help you settle in
- Hybrid Work Setup: 3 core office days, flexible working hours, and 3 weeks of remote work per year
- Time Off: Enjoy 30 vacation days annually
- Health & Wellness: Free access to an in-house gym, diverse fitness classes, and mental health support through our Employee Assistance Program (EAP)
- Office Perks: Central Hamburg office with an Alster Lake view, top-notch equipment, open spaces, snacks, and drinks
- Community & Events: Participate in regular company events, hackathons, and social gatherings – we work together and celebrate together
