UX/UI Designer (f/m/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 consists of three major components: native Android and iOS SDKs written in Java/Kotlin and Swift handling complex engagement flows; widely customizable offerwall applications built with React TypeScript.Our system matches each game with its ideal users, delivering rewards optimized for user satisfaction.

For team members, this means having state-of-the-art resources to build engaging rewarded ad experiences that seamlessly integrate into the world’s top apps while delivering exceptional results for advertisers and monetizers in this industry-leading technology.

As a UX/UI Designer at adjoe, your primary responsibility is to design and develop intuitive and user-centered digital experiences that drive engagement, retention, and growth, as well as dashboards and tools for understanding and analyzing user behavior and business outcomes You will work closely with the product and development teams to create visually appealing and functional interfaces that meet the needs and expectations of our users. This position reports to the Design Lead.

Required Documents

• Please don’t forget to share your portfolio when applying - we want to see your UX/UI skills in action!

What You Will Do

• Develop and maintain a deep understanding of our users, their needs, behaviors, and motivations
• Design and develop intuitive, user-centered, and visually appealing interfaces for our mobile apps
• Collaborate with product managers, developers, and other stakeholders to identify user needs and define user flows, wireframes, prototypes, and high-fidelity designs
• Define key design hypotheses and work with product/data teams to set up and analyze A/B tests to iteratively optimize designs based on measurable results.
• Conduct usability testing, user research, and analyze user feedback to validate and improve design decisions
• Ensure consistency and coherence of design elements, styles, and branding across all digital touchpoints
• Actively contribute to and maintain the internal Design System, ensuring scalability, consistency, and accessibility across all products.
• Stay up-to-date with the latest UX/UI design 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
• You are proficient in design and prototyping using Figma, including the ability to create high-fidelity, interactive prototypes.
• You have experience creating and/or specifying motion and micro-interactions using industry tools. Familiarity with Lottie (or similar formats like Bodymovin/After Effects) and Jitter (or similar rapid prototyping/animation tools) is a significant plus.
• You have strong understanding of user-centered design principles, UX methodologies, and design thinking
• You have proven experience designing for mobile (iOS and Android), understanding platform-specific UI patterns and limitations.
• You know how to communicate design ideas and decisions with cross-functional teams.
• You have a strong Product Mindset; you are capable of balancing user needs, technical constraints, and business objectives to define the most valuable product experience.
• You are an excellent problem solver with analytical, and creative thinking skills.

Fuel for the Journey: Benefits to Support Your Ambitions

• Invest in Your Future: Regular feedback and our development program support your growth, helping you expand your skill set and achieve your career goals.
• Easy Arrival to adjoe: From signing to settling in Hamburg, we’ve got you covered. Need a visa? No problem. Ready to build your new life and career at adjoe in Hamburg? We support every ambition—from learning German to a relocation bonus that helps you settle in and make Hamburg feel like home.
• Live Your Best Life, at Work and Beyond: We work in a hybrid setup with 3 core office days, plus flexible working hours. Enjoy 30 vacation days, 3 weeks of remote work per year, and free access to an in-house gym with lots of different fitness classes and mental health support through our Employee Assistance Program (EAP).
• Thrive Where You Work: Enjoy the Alster Lake view from our central office with top-notch equipment, fun open spaces, and a large variety of snacks and drinks.
• Join the Community! Participate in regular team and company events, including hackathons and social gatherings. We work together, and we celebrate together, too.