Lead UX/UI Designer
Job description
Lead UX/UI Designer at Justplay Gmbh.
About the role
You will shape the design vision and elevate the product design function at a scale that impacts millions of players globally. This role centers on crafting experiences that deepen content discovery, strengthen player motivation, and drive measurable engagement. You will bring proven expertise in gamification to create journeys that inspire consistent play and long-term retention. The position requires you to drive business impact through design, ensuring every player interaction directly supports JustPlay's growth and mission. You will also help unlock operational efficiency by integrating AI tools and workflows across the digital product development lifecycle. As a leader, you will coach, mentor, and grow designers, fostering a culture of creativity, accountability, and continuous learning. You will work closely with cross-functional partners to deliver both bold long-term strategic ideas and immediate, high-impact improvements.
Key facts
What you'll do
Lead user experience from initial concept through production launch, developing and advocating a cohesive design vision for one of the world's top entertainment apps.
Manage, mentor, and support a team of product designers across iOS, Android, and web platforms to ensure consistent quality and alignment.
Build and evolve JustPlay's design guidelines and design system, creating reusable patterns that scale across products and teams.
Champion product design throughout the organization, educating stakeholders and establishing design-led practices that influence decision-making.
Drive measurable business outcomes through design decisions that balance player delight with company growth and retention goals.
Partner closely with product managers, engineers, and data analysts to translate research insights and analytics into actionable design concepts.
Apply platform best practices for iOS and Android to ensure design quality and seamless interactions across all devices and touchpoints.
Promote and integrate AI-assisted design tools to streamline creative workflows, improve quality, and maintain a strong bias towards velocity and quality.
Transform complex research findings and behavioral data into clear design strategies that enhance game discovery, loyalty mechanics, and overall engagement.
Collaborate with cross-functional leaders to identify opportunities where automation and AI can streamline design operations and remove bottlenecks.
Establish efficient design processes that scale with team growth while maintaining a high standard of craft and attention to detail.
Proactively identify friction points and usability issues, then prioritize improvements that drive meaningful impact on player behavior and satisfaction.
Stay current with mobile gaming trends, advertising models, and reward platform dynamics to ensure designs remain competitive and relevant.
Foster a high-performing, growth-minded design culture through continuous feedback, mentorship, and knowledge sharing across the team.
Champion accessibility and inclusive design principles to ensure the platform is welcoming and usable for a diverse global audience.
Requirements
5+ years' experience leading a mobile product design team, ideally within entertainment or gaming environments where user engagement is critical.
Demonstrated success scaling or refining established design teams and processes while maintaining quality and alignment across disciplines.
A portfolio showcasing impactful mobile design work that highlights game discovery, loyalty programs, and retention-focused features.
Proven expertise in gamification and user engagement, with examples of how your designs have driven sustained player motivation.
Expert proficiency in Figma, including advanced component usage, design systems management, and interactive prototyping.
Meticulous attention to detail and a commitment to craft, ensuring pixel-perfect execution and consistent visual quality.
Fluency in English, both written and spoken, enabling clear communication with international stakeholders and team members.
Experience working within fast-paced, data-driven environments where design decisions must balance user needs with business objectives.
Comfort collaborating closely with engineering teams to understand technical constraints and translate them into feasible design solutions.
Strong judgment in prioritizing features and initiatives under tight deadlines while maintaining a high standard of design quality.
An understanding of reward ecosystems, loyalty programs, or similar engagement models is viewed as essential experience.
A demonstrated ability to work autonomously and lead through influence, inspiring trust and collaboration across cross-functional teams.
Commitment to inclusive design practices and a user-first mindset that advocates for diverse player perspectives.
Willingness to partner with teams across multiple time zones and support asynchronous communication workflows.
Nice to have
Background in loyalty or rewards platforms, with a track record of designing programs that increase long-term engagement.
Mobile gaming experience, including familiarity with live operations, seasonal events, and monetization mechanics.
Deep understanding of mobile gaming trends and the advertising landscape, including how these factors influence player expectations and behavior.
Experience implementing AI tools within design workflows to accelerate iteration and improve design system consistency.
Practical notes
Work-Life Balance and Flexibility: The role offers flexible working hours and options for digital nomads, occasional office visitors, or regular office-goers.
Mental Health Support: Free personal coaching through our partner nilo.health http://nilo.health to support our team members to live fulfilled lives at home and at work.
Training & Development: A competitive personal development budget of up to 2000€/year for training, conferences, workshops, etc.
Germany-Based Benefits: 25 vacation days, free Wellhub https://wellhub.com/de-de/ gold subscription, free monthly Deutschland-Ticket, and a monthly €50 tax-free internet contribution.
State-of-the-Art Equipment: Doesn't matter if you are a MacBook or Windows user; we will provide you with the technical gear you need to succeed.
A Relocation Package: Includes visa support for those who need it.
Berlin Office Perks: Ergonomic setup, free daily lunch, and a dog-friendly environment.
Engaging and Diverse Work Environment: Join a diverse team, with over 30 nationalities working from over 25 different locations.
Benefits may vary depending on location and contract type. Do not hesitate to ask us about more details on our benefits offer.