Senior UX/UI Designer - App Ops in London

VML, part of WPP, is a leading creative company that combines brand experience, customer experience, and commerce, creating connected brands to drive growth. VML is celebrated for its innovative and human-first, award-winning work for blue-chip client partners including AstraZeneca, Colgate-Palmolive, Dell, Ford, Microsoft, Nestlé, The Coca-Cola Company, and Wendy's.

We are seeking a highly skilled and passionate Senior UX/UI Product Designer with a specialized focus on mobile applications to join our dynamic, flexible team, embedded directly with a leading automotive client's App Operations team. This hybrid role is for a hands-on designer who excels at crafting, optimizing, and delivering exceptional mobile-first digital experiences that drive user engagement, enhance operational efficiency, and seamlessly integrate into the broader automotive customer journey.

You will be instrumental in translating complex automotive functionalities and operational needs into intuitive and delightful mobile user interfaces. Working collaboratively within a cross-functional team, you will be responsible for the end-to-end design lifecycle of the client's mobile apps, ensuring every pixel and interaction is meticulously considered and executed.

What you’ll be doing:

• Lead the end-to-end UX and UI design process for features and functionalities within the client's mobile applications (iOS and Android).
• Develop detailed user flows, interaction models, information architecture, wireframes, and interactive prototypes specifically tailored for mobile platforms.
• Create pixel-perfect, high-fidelity UI designs, incorporating the client's brand guidelines, design system, and best practices for mobile usability and aesthetics.
• Focus on micro-interactions, gestural controls, haptic feedback, notification systems, and responsive layouts for various mobile device sizes and orientations.
• Ensure all designs are technically feasible and collaborate closely with developers during implementation, providing detailed specifications and reviewing UI for fidelity.
• Conduct and participate in user research sessions (e.g., usability testing on mobile devices, remote ethnography, A/B testing within apps) to gather insights specific to mobile user behaviour and preferences.
• Analyze app analytics, user feedback, and market trends to identify pain points and opportunities for mobile app experience improvements.
• Translate research findings into actionable design recommendations and iterate on designs based on user feedback and performance data.
• Work closely with the UX Lead, App Operations team, product managers, developers, and other designers to ensure a cohesive product strategy and design execution across all mobile initiatives.
• Contribute to and advocate for the adoption of mobile-first design best practices, accessibility standards, and consistent design patterns within the App Operations team.
• Present design concepts, rationale, and user insights clearly and persuasively to stakeholders, fostering a shared understanding and buy-in for mobile experience enhancements.

What we want from you:

• Proven track record as a Senior UX/UI Designer with a specialized, hands-on focus on mobile application design (iOS and Android), demonstrating exceptional craft and attention to detail.
• Experience designing for the automotive sector or other highly regulated/complex industries with a strong digital product presence is highly desirable.
• A must-have portfolio demonstrating end-to-end UX/UI design for mobile apps, showcasing your process from research and wireframing through to polished UI and implemented solutions.
• Deep understanding and practical application of mobile-first design principles, platform-specific guidelines (e.g., Apple Human Interface Guidelines, Google Material Design), and responsive design.
• High proficiency in modern design tools, especially Figma, with the ability to create scalable, well-structured design files, interactive mobile prototypes, and high-fidelity UI.
• Strong experience in conducting and participating in mobile-specific user research (qualitative and quantitative), including usability testing on devices, A/B testing, and synthesizing results into design solutions.
• Familiarity with mobile app development processes, limitations, and platform capabilities to ensure designs are technically feasible and optimized for performance.
• Excellent communication and collaboration skills, able to present and articulate design decisions and rationale clearly to developers, product managers, and other stakeholders.
• A proactive, problem-solving mindset, capable of working autonomously to manage design tasks and priorities within a fast-paced, cross-functional App Operations team.
• Experience working with and contributing to comprehensive design systems, ensuring consistency and scalability of mobile components.
• Solid understanding of mobile accessibility standards and performance considerations to ensure inclusive and efficient app experiences.

What we can offer you:

Alongside the opportunity to work with some of the most exciting brands around the world, we’ll also prioritise your career development and help you grow your skills. We’ll empower you to make a difference, allow you to be yourself, and respect who you are.

We offer a great benefits package including a discretionary bonus scheme, training opportunities, competitive pension, medical insurance, life assurance, social events, opportunities to buy and sell holidays, family-friendly policies, discounts with hundreds of retailers and much more.

Our culture thrives on our core values, designed for impact-driven individuals: Heart, Brains and Courage.

We lead with Heart, fostering empathy and trust where genuine connections and human-centric work flourish. We empower your Brains for innovation, valuing relentless curiosity and collaborative intelligence to solve complex challenges. And we champion Courage, inspiring you to speak up, embrace experimentation, and advocate for bold solutions that push our thinking to be better than yesterday.