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.
The job
Flo Health is the world’s most popular women’s health app, supporting over 80 million monthly active users. As our Engineering Manager for the AI Platform, you will lead the core team that builds the shared infrastructure powering every AI feature at Flo—from our chatbot and cycle predictions to personalized health insights.
We don’t just use AI; we build the systems that make it possible at scale. You will work in an environment where we maintain direct technical partnerships with Databricks, OpenAI, Anthropic, and AWS, moving far beyond standard vendor relationships.
The Environment
Our AI Platform team is embedded directly in product delivery, working in cross-functional squads alongside our Data Platform team and external model partners. We operate with a clear but fluid strategy — iterating quickly based on rapid AI/LLM advancements and real-time metrics. You will manage a dynamic environment where roughly 30% of the team's work is reactive, driven by immediate product needs, while maintaining focus on our long-term roadmap.
What You’ll Do
What you bring:
Why Join Flo?
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
We support impact with meaningful reward. Here’s what that looks like:
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. Read our privacy notice for job applicants
At Flo, our purpose is to build a better future for female health. We are the world’s leading period and ovulation tracker, empowering over 400 million women globally to take control of their health. With 77 million monthly active users, including 25% of US women, Flo has become a trusted partner in women's health. As the first European femtech unicorn, following a $230M Series C in July 2024, we're proud to lead the way in innovation and investment in women's health.
With over 100+ medical experts, Flo is committed to supporting women at every stage of their health journey, from menstruation to conception, pregnancy, and menopause. We provide curated cycle and ovulation tracking, tailored health insights, daily bite-sized visual content, and a private community for users to share their questions and concerns.
Flo addresses critical challenges in women’s health by:
*Expanding access: Through partnerships like UNFPA, Flo provides free Premium access to up to 1 billion women in 66 countries, with 17 million subscriptions donated, helping bridge healthcare disparities.
*Improving health literacy: By delivering accurate, accessible information and daily insights, Flo empowers millions to better understand their health and make informed decisions.
*Advancing women's health research: Collaborating with leading institutions, Flo contributes to evidence-based women’s health research.
In a world where women's health data is increasingly vulnerable, Flo is dedicated to providing a safe and secure platform. Recognized for its commitment to privacy, Flo's Anonymous Mode feature was named one of TIME's Best Inventions of 2023 and a finalist for Fast Company's 2023 World Changing Ideas Awards. Anonymous Mode allows users to access Flo's health features without associating personal information with their health data, setting a new industry standard for reproductive health data privacy.
