Flo Health·London, GBLondon, the United Kingdom·First seen
Machine Learning Engineer
Develop and test complex ML/AI systems leveraging LLMs to improve female health for 80M+ users.
GBP 130,000–180,000 / yearML / AIMid-levelHealthMedTech
Flo Health
London, United Kingdom · Founded 2015 · 201-500 staff
Other
Flo Health is the leading app in the Health & Fitness category worldwide, supporting women during their entire reproductive lives with cycle and ovulation tracking, personalized health insights, expert tips, and a private community.
Open roles at a glance
8 live roles2 Engineering Mgmt · 2 Mobile · 1 ML / AI · 1 Platform / DevOps · 1 Security· 3 remote-friendly
Roles based in: London, Vilnius
Engineering at Flo Health
Builds in: HealthTech · health · AI · B2C · Platform
Works with:CI/CDAWSJavaKotlinObjective-CPythonScalaSwift
Seniority: 1 Mid-level · 4 Senior · 2 Lead · 1 Principal
Publishes salary on 8 of 8 ads · Hiring engineering roles here since April 2026
8 open Engineering roles
Curated from live Flo Health postings. Click any role for the full brief.
Flo Health·London, GB +1 locationsLondon, the United Kingdom +1 locations·First seen
Engineering Manager
Lead and grow a high-performing team building next-gen AI-powered health tools for a global audience.
EUR 10,000–12,000 / monthEngineering MgmtLeadhealthmobile
Flo Health·London, GB +1 locationsLondon, the United Kingdom +1 locations·First seen
Principal DevEx Engineer
Principal DevEx Engineer at Flo Health in Vilnius, building self-service tools and evolving the core AWS and Kubernetes stack.
EUR 10,000–12,000Platform / DevOpsPrincipalHealthTechPlatform
Flo Health·London, GBLondon, the United Kingdom·First seen
Lead Security Engineer
HIPAA Security Engineer leading US Healthcare security controls and compliance roadmaps for Flo Health in London.
HybridGBP 100,000–130,000SecuritySeniorHealthTechB2B SaaS
Flo Health·London, GB +1 locationsLondon, the United Kingdom +1 locations·First seen
Engineering Manager - AI platform
Lead a team building Flo Health's AI platform infrastructure supporting 80M+ monthly users at scale in London/Vilnius.
EUR 9,000–12,000Engineering MgmtLeadhealthAI
Flo Health·Vilnius, LTVilnius, Lithuania·First seen
Frontend Engineer
Build next-gen AI-powered health features for Flo, the world's #1 female health app.
EUR 5,900–8,300SoftwareSeniorHealthTechB2C
Flo Health·London, GB +1 locationsLondon, the United Kingdom +1 locations·First seen
Senior / Lead iOS Engineer
Build the next generation of AI-powered digital health for 80M+ monthly users at Flo Health.
HybridEUR 6,500–8,500MobileSeniorHealthTechB2C
Flo Health·Vilnius, LTVilnius, Lithuania·First seen
Senior/ Lead Android Engineer
Build the next generation of AI-powered digital health for 80M+ monthly users at Flo Health.
HybridEUR 6,500–8,500MobileSeniorHealthTechAI/ML
Archived roles (11)
No longer open on Flo Health's site. Kept for reference — saved archived roles stay in your dashboard.
Flo Health·Vilnius, LTVilnius, Lithuania·First seen
Engineering Manager (Hiring Day - June 26)
Build AI-powered digital health for 80M+ users at Flo Health.
ArchivedHybridEUR 9,100–12,000Engineering MgmtSeniorHealthTechB2C
Flo Health·London, GBLondon, the United Kingdom·First seen
Senior DevEx Engineer
Build internal developer tools for Flo Health, the #1 women's health app, enabling faster, safer code shipping at scale.
ArchivedHybridPlatform / DevOpsSeniorHealthTechB2C
Flo Health·London, GBLondon, the United Kingdom·First seen
Engineering Manager
Lead engineers building AI-powered female health tools for 500M+ users.
ArchivedHybridGBP 125,000–140,000Engineering MgmtSeniorHealthTechAI/ML
Flo Health·London, GB +1 locationsLondon, the United Kingdom +1 locations·First seen
Director of Engineering
Lead engineering for Flo Health's AI-powered female health app, impacting 80M+ users.
ArchivedHybridEngineering MgmtDirectorHealthTechB2C
Flo Health·Vilnius, LTVilnius, Lithuania·First seen
QA Engineer
Build Flo Health's AI-powered female health app, ensuring quality for 80M+ users.
ArchivedHybridEUR 4,900–7,000QA / TestSeniorHealthTechB2C
Flo Health·Vilnius, LTVilnius, Lithuania·First seen
Senior DevEx engineer
Build internal developer tools for Flo Health, the #1 women's health app with 500M+ downloads.
ArchivedHybridEUR 6,500–8,500Platform / DevOpsSeniorHealthTechB2C
Flo Health·London, GB +1 locationsLondon, the United Kingdom +1 locations·First seen
Cloud Security Engineer
Secure Flo Health's AWS cloud platform and CI/CD pipelines for 80M+ users.
ArchivedEUR 6,000–8,000SecuritySeniorHealthTechB2C
Flo Health·London, GB +1 locationsLondon, the United Kingdom +1 locations·First seen
Engineering Manager
Lead and scale a team of 5+ engineers for Flo Health, a leading female health app with 500M+ downloads.
ArchivedHybridEUR 7,870–9,170Engineering MgmtLeadHealthTechB2C
Flo Health·London, GBLondon, the United Kingdom·First seen
Senior AI/ML engineer
Build production LLM infrastructure for 80M users at Flo Health.
ArchivedHybridGBP 120,000–180,000ML / AISeniorHealthTechAI/ML
Flo Health·Vilnius, LTVilnius, Lithuania·First seen
Senior Backend Engineer
Build backend systems for the world's #1 female health app, Flo, used by 80M+ users.
ArchivedHybridEUR 6,500–10,000SoftwareSeniorHealthTechB2C
Flo Health·LondonLondon·First seen
Director of Engineering
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 earn
ArchivedEUR 11,000–13,000