Principal Designer

At Oviva, we’re on a mission to make sustainable, personalized, clinically effective care accessible to everyone as we build Europe’s leading AI-powered chronic care platform. Our digital programmes help people manage weight-related illnesses by focusing on what matters most: improving health, building confidence, and enhancing quality of life. To date, we have supported over one million people across the UK, Switzerland, and Germany. We're hiring a Principal Product Designer to be the lead design voice at Oviva and the de facto owner of our mobile app's design direction. This is a senior individual contributor role with high influence. You'll set the design vision and standards, own the design system strategy, and hold a clear, evidence-backed point of view on where Oviva's product experience needs to go next. You'll work closely with leadership across Product, Patient Experience, Marketing, Brand, and Engineering. When their priorities compete, patient outcomes are the tiebreaker. As an AI native, you’ll oversee the adoption of AI tools in Design. This role is central to making sure that shift improves the patient experience and measurable impact, rather than just accelerating output. Essential: 10+ years of digital product design experience, with a heavy focus on world-class iOS and Android mobile applications. Hands-on experience with AI-native design workflows — agentic coding tools, AI-assisted prototyping, natural-language-driven design processes. If you haven't shipped in this environment yet, evidence of your individual experimentation and growth mindset is critical Demonstrable, directly attributable influence on a consumer application that successfully delivered both engagement and behavioural change. Fluency in adjudicating between competing stakeholder objectives — growth, patient experience, brand — using a clear, defensible framework rather than intuition alone A sharp, current point of view on consumer product and digital health innovation, and the ability to translate it into concrete product direction Comfort interpreting product analytics from tools such as Mixpanel, Amplitude, Hotjar or equivalent, and applying user data directly to design decisions Exceptional communication and facilitation skills. You can align engineers, product managers, and design peers behind a single UX direction and make the case stick Deep understanding of WCAG accessibility standards applied natively to mobile Excellent written and spoken English Desirable: German language proficiency Experience in health tech, digital therapeutics, or behavioral science-driven product domains where clinical validation is critical Understanding of mobile engineering frameworks and how design systems translate into code Education: A degree in Design, HCI, Interaction Design, or a related field is a plus. A portfolio demonstrating exceptional mobile UI/UX and systemic design thinking is required. Experience and outcomes take precedence over credentials. This role is a highly collaborative, strategic individual contributor role. You will: Define App Vision & Strategy: Own and drive the long-term design vision for the Oviva app, in close partnership with Product, Behavioural Science, Clinical, and Engineering. Ensure the patient experience is engaging, clinically grounded, and measurably effective on a mobile device. Own the Design System Strategy: Lead the evolution, governance, and adoption of Oviva's design system — a critical part of how we deliver consistent experiences and positive behavior change at scale. You'll define how it grows, how it's used, and how it enables builder teams to actually ship. Elevate Design Craft & Quality: Set the bar for what excellent looks like at Oviva and model it at all times. Conduct design reviews, define UI/UX standards, and mentor designers, product managers, and builders to raise the quality of visual craft, prototyping, and validation across the team. Cross-functional alignment: Partner with the VP of Patient Experience and VP of Marketing to resolve competing objectives and maintain clear design standards when priorities conflict. You'll need to be able to defend a design decision in a room with evidence and conviction. Market and competitive insight: Maintain a clear, current point of view on where digital health design and consumer mobile applications are heading, and be able to translate that into concrete recommendations for where Oviva should invest next. The opportunity to make a meaningful impact in revolutionizing healthcare Exciting and rewarding role in the high-growth environment Training and development opportunities, with a personal learning allowance We embrace flexibility & remote working We provide a home working allowance to enable you to set up your workspace in a way which suits you Competitive Salary & company pension Enhanced Maternity, Paternity & adoption leave Having a culture that people want to work in is very important to us. We do this by keeping our values at the forefront of everything we do: We place our patients first. We empower our teams. We make it happen. Oviva is passionate about creating an inclusive culture that encourages, supports, and celebrates the diverse voices of our employees. We are a truly inclusive place to work, where everyone can be themselves, and everyone is welcome. We welcome and encourage applicants from all backgrounds and identities, including but not limited to race, ethnicity, gender, sexual orientation, age, ability, religion, and socioeconomic status. We seek candidates with unique perspectives to help us build a stronger, more inclusive team. We're Proud to be a Disability Confident Employer Ready to make a difference? Join us in transforming digital healthcare. Apply today!