Senior/ Lead Android Engineer

<div class="content-intro"><p><strong>500M+ downloads. 80M+ monthly users. A decade of building – and we’re still accelerating.</strong></p> <p>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.</p> <p>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.</p> <p><strong>The job</strong></p></div><div> <p class="font-claude-response-body break-words whitespace-normal leading-[1.7]">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.</p> <p class="font-claude-response-body break-words whitespace-normal leading-[1.7]">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.</p> <p class="font-claude-response-body break-words whitespace-normal leading-[1.7]">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.</p> <p class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><strong><span style="font-size: 12pt;">Your Experience</span></strong></p> <p class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><strong><span style="font-size: 12pt;">Must have:</span></strong></p> </div> <ul> <li>7+ years of hands-on Android development experience, with a track record of shipping and maintaining production applications at scale</li> <li>Experience building large, complex mobile applications with polished, performant UIs - ideally for global consumer audiences</li> <li&