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- Tasks: Develop impactful features for a leading health app, shaping women's health experiences.
- Company: Join Flo, the world’s #1 health & fitness app with a mission to empower female health.
- Benefits: Competitive salary, performance incentives, generous leave, and a 5-week sabbatical after 5 years.
- Other info: Dynamic, mission-driven team with opportunities for professional growth and collaboration.
- Why this job: Make a real difference in women's health while working with cutting-edge technology.
- Qualifications: 7+ years of Android development experience and a passion for user-centric design.
The predicted salary is between 95000 - 120000 £ per year.
500M+ downloads. 80M+ monthly users. A decade of building – and we’re still accelerating. Flo is the world’s #1 health & fitness app worldwide on a mission to build a better future for female health. Backed by a $200M investment led by General Atlantic, we became the first product of our kind to reach a $1B valuation in 2024 – and we’re not slowing down. With 7M paid subscribers and the highest-rated experience in the App Store’s health category, we’ve spent 10 years earning trust at scale. Now, we’re building the next generation of digital health – AI-powered, privacy-first, clinically backed – to help our users know their body better.
As an Android Engineer at Flo, you'll help shape the mobile experience for millions of people, and do genuinely meaningful work in women's health. Our app is trusted by 1 in 4 women aged 18–44 in the US and used across 100+ countries, with machine learning and AI powering accurate cycle predictions and personalised, medically credible health insights. We build large-scale mobile applications with rich, intuitive interfaces - optimised for speed, accessibility and privacy. You'll join a cross-functional team working across the full mobile lifecycle, from feature ideation through to release and iteration, with real ownership over value delivery end to end. We're not a feature factory. Our engineers are pragmatic problem-solvers who thrive in fast-moving environments and care about what they ship. You'll have genuine scope to experiment, lead ambitious product initiatives and implement solutions that matter - not just clear a backlog. Flo is a constantly evolving product, and we give our engineers the trust and autonomy to evolve it.
Your Experience
- Must have:
- 7+ years of hands-on Android development experience, with a track record of shipping and maintaining production applications at scale
- Experience building large, complex mobile applications with polished, performant UIs - ideally for global consumer audiences
- Strong proficiency in Java, with solid object-oriented design principles and a keen eye for clean, maintainable code
- Deep knowledge of the Android ecosystem - including platform fragmentation, UI design patterns, and delivering consistent experiences across a wide range of screen sizes and devices
- Solid familiarity with Google technologies, Play Store submission processes, and Google's development guidelines
- A good grasp of the full mobile product lifecycle, with practical experience working within Agile teams
- Knowledge of Kotlin programming language, Clean Architecture and reactive programming
- An eye for UX and interaction design - you care about how things feel, not just how they work
- Hands-on experience with mobile CI/CD tooling, including build, test and release automation
- Experience integrating with analytics and BI systems, including A/B testing frameworks
- Experience with alternative Android markets
- Experience optimising data usage over mobile networks and building offline-first applications
What you'll be doing
- Developing features using modern frameworks, libraries and in-house components - contributing to a shared codebase built to last
- Delivering polished, intuitive user experiences that meet a high bar for design and usability
- Maintaining and improving a continuous delivery pipeline, ensuring fast, reliable and safe releases to production
How we work
We’re a mission-led, product-driven team. We move fast, stay focused and take ownership – from brief to build to impact. Debate is encouraged. Decisions are shared. We care about craft, ship with purpose, and always raise the bar. You’ll be working with people who take their work seriously, not themselves. It takes commitment, resilience, and the drive to keep going when things get tough. Because better health outcomes are worth it.
What you'll get
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
Diversity, equity and inclusion
Our strength is in our differences. At Flo, hiring is based on merit, skill and what you bring to the role – nothing else. We’re proud to be an equal opportunity employer, and we welcome applicants from all backgrounds, communities and identities.
Senior/ Lead Android Engineer in London employer: Flo Health
Contact Detail:
Flo Health Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior/ Lead Android Engineer in London
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with online communities. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best Android projects. Whether it's apps you've built or contributions to open-source projects, having tangible evidence of your work can really set you apart.
✨Tip Number 3
Prepare for interviews by practising common technical questions and coding challenges. Use platforms like LeetCode or HackerRank to sharpen your skills. Remember, confidence is key, so get comfortable talking about your experience!
✨Tip Number 4
Apply through our website! We love seeing candidates who are genuinely interested in Flo. Tailor your application to highlight how your experience aligns with our mission in women's health – it’ll make a real difference!
We think you need these skills to ace Senior/ Lead Android Engineer in London
Some tips for your application 🫡
Show Off Your Experience: When you're writing your application, make sure to highlight your 7+ years of Android development experience. We want to see the projects you've worked on and how you've contributed to shipping and maintaining production applications at scale.
Tailor Your Application: Don’t just send a generic application! Tailor it to us by mentioning specific skills that match our job description, like your proficiency in Java and knowledge of the Android ecosystem. This shows you’ve done your homework and are genuinely interested in joining our team.
Be Clear and Concise: Keep your application clear and to the point. We appreciate well-structured applications that get straight to the heart of your qualifications and experiences. Avoid fluff – we want to know what makes you a great fit for Flo!
Apply Through Our Website: Make sure to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it gives you a chance to explore more about Flo and our mission while you’re at it.
How to prepare for a job interview at Flo Health
✨Know Your Stuff
Make sure you brush up on your Android development skills, especially Java and the Android ecosystem. Be ready to discuss your past projects and how you've tackled challenges in building large-scale applications. They’ll want to see that you can not only code but also understand the nuances of delivering a polished user experience.
✨Show Your Passion for Women's Health
Flo is all about improving women's health, so it’s crucial to convey your enthusiasm for this mission. Research their app and think about how your skills can contribute to their goals. Share any relevant experiences or ideas you have that align with their vision of using technology to empower women.
✨Be Ready for Problem-Solving
Expect technical questions that test your problem-solving abilities. Prepare to walk through your thought process on how you would approach specific challenges they face, like optimising performance across different devices or implementing new features. They value pragmatic solutions, so demonstrate your ability to think critically and creatively.
✨Cultural Fit Matters
Flo values a collaborative and mission-driven culture. Be prepared to discuss how you work within Agile teams and your approach to ownership and accountability. Share examples of how you’ve contributed to team success and how you handle feedback and debate. They want to see that you can thrive in a fast-paced environment while still caring about the craft.