500M+ downloads. 77M+ 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 6M 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
We are now building the next generation of AI-powered, privacy-first, clinically backed digital health solutions. Scientific integrity is the foundation of our work, engaging over 100 thought leaders and establishing research partnerships with institutions like Stanford, Yale, John Hopkins and more.
The Role: Setting the gold standard for software as a medical device
We are seeking a highly skilled Senior Research Scientist to join our Science team for 20-30 hours per week. This role is centered on working with big data to answer research questions within Women’s Health to write a first-author paper for a top-tier journal. You will also be supporting the successful execution of our clinical investigation into the safety and effectiveness of our new medical device, and the scientific strategy and planning for future devices. The mission impossible of your job is to bridge the gap between "interesting research", "clinical proof", “regulatory requirements”, and “business metrics”.
You will work closely with the Lead Research Scientist and the Director of Science, but your impact of research will be felt through the whole company, across the legal, compliance, and product teams.
What you'll be doing
You'll be responsible for:
Must Have:
Nice to Have:
#LI-VT2
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.