Senior Mobile Software Engineer

Founded in 2018, we've already grown to be a 300+ team distributed across the globe, united by a singular mission: empowering people to take control of their health. Numan is transforming health: we've built a cutting-edge platform that integrates diagnostics, medication, supplements, digital programmes, and doctor consultations. Giving people the tools they need to maximise life. To deliver on our transformative mission, we are guided by our 5 company values: Own the quality. Care deeply. We're looking for an experienced, product-driven Senior Android Engineer to help build the app that sits at the heart of how our patients look after their health. In this role, you will help shape the next generation of Numan's digital health products, influencing both the technical direction and product experience. You will work in a fast-moving, collaborative environment alongside talented engineers, designers, and product leaders, with a direct impact on shaping the future of the company. Owning significant parts of the Android architecture, building scalable, maintainable, and high-performing solutions. Leading the design and development of complex features across the Numan app ecosystem, delivering high-quality, user-focused experiences. Contributing to the Backend-For-Frontend (BFF) application used by the mobile Numan apps. Collaborating closely with product, design, and clinical team members to shape solutions and provide input on technical trade-offs. Contributing to technical decisions around technologies, tools, and frameworks. Championing code quality through thorough reviews, automated testing, and adherence to engineering standards. Mentoring and coaching less experienced engineers, helping them grow their technical skills and adopt best practices. Is passionate about building high-quality Android experiences that genuinely improve people's lives. Thrives in fast-moving, high-impact environments and takes ownership from conception to delivery. Has a track record of delivering production-grade Android apps to the Play Store, with experience in scaling apps and handling complex architectures. Has strong experience with Kotlin, Jetpack Compose, and the Android ecosystem, including modern frameworks and libraries, design patterns, and performance optimization. Has experience with BFF systems. Has a proactive approach and knowledge of best practices in code, testing, and app performance. Is used to working in agile teams, with strong problem-solving abilities and a drive for continuous improvement. Has excellent attention to detail
- both in code quality and user experience. Our benefits include... ~ 25 days holiday, plus bank holidays (increasing to 30 the longer you stay with Numan). ~ Electric car salary sacrifice scheme with Octopus. ~ Enhanced maternity and parental leave. ~ Nursery benefit provided by YellowNest. ~ Employee assistance programme (access to therapy, financial planning and discounts). ~ Generous pension (includes both employee and employer contributions). ~ Flexible working options, including a dog-friendly office in Farringdon. ~ Personal training and development budget via Learnerbly. ~ Wellhubmembership, giving you access to over 2,000 locations in the UK. ~ Season ticket loan. %
- Discount on Numan products for your friends and family. Paid volunteering days. We recognise and value the unique perspectives and experiences that individuals from all backgrounds bring. Embracing diversity isn't just our goal; it's our strength, driving us towards a more inclusive future.