Over 500 million downloads, 80 million monthly users, and a decade of innovation - our journey is just beginning!Flo is the leading health and fitness app globally, dedicated to empowering female health. With a remarkable $200 million investment led by General Atlantic, we proudly became the first of our kind to achieve a $1 billion valuation in 2024, and our momentum is unstoppable.With 7 million paid subscribers and the top-rated experience in the App Store's health category, we have spent the last 10 years building trust on a massive scale. Now, we are pioneering the next generation of digital health with AI-driven, privacy-centric, and clinically supported tools to help our users gain a deeper understanding of their bodies.The RoleAs a Senior iOS Engineer at Flo, you will play a pivotal role in shaping the mobile experience for millions, contributing to meaningful advancements in women's health. Our app is relied upon by 1 in 4 women aged 18–44 in the U.S. and is utilized in over 100 countries, leveraging machine learning and AI for precise cycle predictions and personalized, medically credible health insights.We develop large-scale mobile applications featuring rich, intuitive interfaces optimized for speed, accessibility, and privacy. You will collaborate with a cross-functional team throughout the mobile development lifecycle, from ideation to release and iterative enhancements, holding significant ownership over value delivery.We are not just a feature factory. Our engineers are pragmatic problem-solvers who excel in dynamic environments and care deeply about the quality of their deliverables. You will have the freedom to experiment, spearhead ambitious product initiatives, and implement solutions that truly matter, rather than merely clearing a backlog. At Flo, we continually evolve our product, granting our engineers the trust and autonomy to drive that evolution.Your ExperienceMust Have:6+ years of experience in software engineering, with at least 3 years dedicated to building, shipping, and maintaining production mobile applications.Expert-level iOS development skills, demonstrating a proven track record of delivering high-quality applications at scale.Hands-on experience with building and deploying apps using Swift and Objective-C.
Apr 30, 2026