Principal Infrastructure Engineer
Flohealth · London · Full-time
Description
<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><h1><strong>Principal Infrastructure Engineer</strong></h1> <p>More than 80 million women open Flo every month to understand their bodies and their health. Every one of those sessions runs on infrastructure we build, and the data behind it is as personal as data gets. Keeping that fast and private at this scale is the job.</p> <p>Velocity runs the platform that every Flo engineer builds on: Kubernetes on AWS, the data stores behind our services,…
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The listing places this job in London.
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It was posted on 28 October 2026. Jobs that stay open too long are closed automatically, so apply soon if you are interested.
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