Flo Health
Pick a job to read the details
Tap any role on the left — its description and apply link will open here.
Senior Product Analyst
Share this job
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
Join our Health, Localisation, and Internationalisation team as a Senior Product Analyst. You will focus on scaling our reach into new territories and optimizing the product journey to ensure it resonates with users in every region.
You'll be responsible for:
- Working closely with Product Managers, UX Researchers, Designers, and Engineers to support data-driven decision-making across the product.
- Identifying new growth opportunities, including underserved user segments, use cases, and regions with high potential for product expansion.
- Helping the team understand which company-level goals can be influenced through experimentation, defining relevant proxy metrics, and monitoring them over time.
- Supporting hypothesis formulation and prioritization using data: estimating segment sizes, potential impact, expected uplift, and defining clear success metrics, while accounting for user behavior patterns.
- Helping the team prioritize ideas and initiatives based on expected impact, confidence level, and effort.
- Participating in product planning and roadmap discussions, providing analytical input to shape priorities and investment decisions.
- Evaluating experiment results in terms of their overall impact on core product metrics, not just local effects.
- Translating analysis results into clear, actionable recommendations for the team and stakeholders.
Your Experience
Must have:
- At least 5+ years of work experience as a Data/ Product Analyst;
- Experience with A/B testing, knowledge of statistics for A/B testing;
- Advanced SQL/Python / R for data analysis;
- Experience in data visualization in Python/ Looker /Tableau or similar.
Nice to have:
- Experience in subscription business;
Ranges may vary depending on your skills, competencies and experience.
#LI-KP1 #LI-Hybrid
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Senior / Lead iOS Engineer
Share this job
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
As an iOS Engineer at Flo, you'll help shape the mobile experience for millions of people, and do genuinely meaningful work in women's health. Our app is trusted by 1 in 4 women aged 18–44 in the US and used across 100+ countries, with machine learning and AI powering accurate cycle predictions and personalised, medically credible health insights.
We build large-scale mobile applications with rich, intuitive interfaces - optimised for speed, accessibility and privacy. You'll join a cross-functional team working across the full mobile lifecycle, from feature ideation through to release and iteration, with real ownership over value delivery end to end.
We're not a feature factory. Our engineers are pragmatic problem-solvers who thrive in fast-moving environments and care about what they ship. You'll have genuine scope to experiment, lead ambitious product initiatives and implement solutions that matter - not just clear a backlog. Flo is a constantly evolving product, and we give our engineers the trust and autonomy to evolve it.
Your Experience
Must have:
- 6+ years in software engineering, with at least 3 years focused on building, shipping, and maintaining production mobile applications.
- Expert-level iOS development skills, with a proven track record of delivering high-quality apps at scale.
- Hands-on experience building complex mobile applications with rich, performant UIs — experience in global consumer-facing products is a strong plus.
- Deep proficiency in Swift; working knowledge of Objective-C and solid object-oriented design principles.
- Strong familiarity with Apple's ecosystem — frameworks, HIG guidelines, and end-to-end App Store submission and maintenance processes.
- Clear understanding of the mobile product lifecycle and comfortable working within Agile teams.
- A collaborative, growth-oriented mindset with the drive to take ownership and deliver.
Nice to have:
- Solid understanding of UX and interaction design principles, with the ability to collaborate effectively with designers and advocate for quality user experiences.
- Proven experience optimizing mobile app performance over constrained networks, including building and maintaining offline-first architectures.
- Hands-on experience with mobile CI/CD pipelines, including build automation, automated testing, and release workflows.
- Experience integrating with BI and analytics platforms, with familiarity in designing and interpreting A/B tests to drive product decisions.
What you'll be doing
You'll be responsible for:
- Building and maintaining features using modern frameworks, libraries, and internal component systems, ensuring consistency, scalability, and code quality across the codebase.
- Delivering polished, engaging user experiences that balance visual appeal with intuitive interaction design.
- Owning and contributing to a robust Continuous Delivery pipeline, ensuring fast, reliable, and safe releases to production.
#LI-Hybrid #LI-AJ1
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Senior / Lead iOS Engineer
Share this job
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
As an iOS Engineer at Flo, you'll help shape the mobile experience for millions of people, and do genuinely meaningful work in women's health. Our app is trusted by 1 in 4 women aged 18–44 in the US and used across 100+ countries, with machine learning and AI powering accurate cycle predictions and personalised, medically credible health insights.
We build large-scale mobile applications with rich, intuitive interfaces - optimised for speed, accessibility and privacy. You'll join a cross-functional team working across the full mobile lifecycle, from feature ideation through to release and iteration, with real ownership over value delivery end to end.
We're not a feature factory. Our engineers are pragmatic problem-solvers who thrive in fast-moving environments and care about what they ship. You'll have genuine scope to experiment, lead ambitious product initiatives and implement solutions that matter - not just clear a backlog. Flo is a constantly evolving product, and we give our engineers the trust and autonomy to evolve it.
Your Experience
Must have:
- 6+ years in software engineering, with at least 3 years focused on building, shipping, and maintaining production mobile applications.
- Expert-level iOS development skills, with a proven track record of delivering high-quality apps at scale.
- Hands-on experience building complex mobile applications with rich, performant UIs — experience in global consumer-facing products is a strong plus.
- Deep proficiency in Swift; working knowledge of Objective-C and solid object-oriented design principles.
- Strong familiarity with Apple's ecosystem — frameworks, HIG guidelines, and end-to-end App Store submission and maintenance processes.
- Clear understanding of the mobile product lifecycle and comfortable working within Agile teams.
- A collaborative, growth-oriented mindset with the drive to take ownership and deliver.
Nice to have:
- Solid understanding of UX and interaction design principles, with the ability to collaborate effectively with designers and advocate for quality user experiences.
- Proven experience optimizing mobile app performance over constrained networks, including building and maintaining offline-first architectures.
- Hands-on experience with mobile CI/CD pipelines, including build automation, automated testing, and release workflows.
- Experience integrating with BI and analytics platforms, with familiarity in designing and interpreting A/B tests to drive product decisions.
What you'll be doing
You'll be responsible for:
- Building and maintaining features using modern frameworks, libraries, and internal component systems, ensuring consistency, scalability, and code quality across the codebase.
- Delivering polished, engaging user experiences that balance visual appeal with intuitive interaction design.
- Owning and contributing to a robust Continuous Delivery pipeline, ensuring fast, reliable, and safe releases to production.
#LI-Hybrid #LI-AJ1
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
QA Release Manager
Share this job
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
At Flo, we empower women across the world to improve their health and well-being with an unmatched user experience.
We are obsessed with understanding the needs of our users, we work in partnership with analysts and user researchers to uncover the ‘why’ and ensure the very best product gets built.
From launching new features to delivering seamless end-to-end journeys, we’re looking for passionate individuals with a growth mindset who can innovate, experiment and move fast.
Become our QA Release Manager and help us smoothly deliver content to the Flo app. Your main objective will be to create and test content within the content management tools, ensuring it is delivered to the audience bug-free.
You will join one of our cross-functional engineering teams while becoming an integral part of our larger QA release management community. You will have the opportunity to contribute to and shape best practices and quality assurance standards, ensuring excellence across our projects.
What you'll be doing:
- Content delivery management (delivering and supporting the content by using the internal content management tools);
- Manual testing of the new features together with content provided in the app;
- Bug detection and making bug reports in Jira;
- Cross-team communication and assistance in solving cross-team issues (content, designer, support, dev);
- Working in an Agile and fast-paced environment.
Your Experience:
Must have:
- 3+ years experience as QA Engineer/Manual Tester;
- Technical mindset;
- Experience in using any of Proxy/ API tools, any SQL tool, GitHub/Bitbucket;
- Knowledge of principles of continuous delivery and continuous improvement;
- Excellent soft and communication skills (flexibility, positive attitude, teamwork, responsibility);
- Ability to cope with multitasking (meet deadlines, miss no tasks, be attentive to details);
- Ability to self-organize your routine daily tasks;
- Literacy in the English language.
Nice to have:
- Knowledge of A/B testing basics;
- Knowledge of Mobile or Web testing basics.
#LI-YY1
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Senior/ Lead Android Engineer
Share this job
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
As an Android Engineer at Flo, you'll help shape the mobile experience for millions of people, and do genuinely meaningful work in women's health. Our app is trusted by 1 in 4 women aged 18–44 in the US and used across 100+ countries, with machine learning and AI powering accurate cycle predictions and personalised, medically credible health insights.
We build large-scale mobile applications with rich, intuitive interfaces - optimised for speed, accessibility and privacy. You'll join a cross-functional team working across the full mobile lifecycle, from feature ideation through to release and iteration, with real ownership over value delivery end to end.
We're not a feature factory. Our engineers are pragmatic problem-solvers who thrive in fast-moving environments and care about what they ship. You'll have genuine scope to experiment, lead ambitious product initiatives and implement solutions that matter - not just clear a backlog. Flo is a constantly evolving product, and we give our engineers the trust and autonomy to evolve it.
Your Experience
Must have:
- 7+ years of hands-on Android development experience, with a track record of shipping and maintaining production applications at scale
- Experience building large, complex mobile applications with polished, performant UIs - ideally for global consumer audiences
- Strong proficiency in Java, with solid object-oriented design principles and a keen eye for clean, maintainable code
- Deep knowledge of the Android ecosystem - including platform fragmentation, UI design patterns, and delivering consistent experiences across a wide range of screen sizes and devices
- Solid familiarity with Google technologies, Play Store submission processes, and Google's development guidelines
- A good grasp of the full mobile product lifecycle, with practical experience working within Agile teams
Nice to have:
- Knowledge of Kotlin programming language, Clean Architecture and reactive programming
- An eye for UX and interaction design - you care about how things feel, not just how they work
- Hands-on experience with mobile CI/CD tooling, including build, test and release automation
- Experience integrating with analytics and BI systems, including A/B testing frameworks
- Experience with alternative Android markets
- Experience optimising data usage over mobile networks and building offline-first applications
What you'll be doing
You'll be responsible for:
- Developing features using modern frameworks, libraries and in-house components - contributing to a shared codebase built to last
- Delivering polished, intuitive user experiences that meet a high bar for design and usability
- Maintaining and improving a continuous delivery pipeline, ensuring fast, reliable and safe releases to production
#LI-Hybrid #LI-AJ1
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
QA Engineer
Share this job
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
Ambitious’, ‘innovative’, ‘highly product-focused’ - those are the words you’d hear if we were asked to describe our Engineering teams.
They focus on product, platform and the development of internal tools to bring the best experience to all of our customers.
Probably one of the most senior bunches of people in the company - on average, each one of our Engineers has over 7 years of experience!
We are looking for a Senior QA Engineer to join our team and help us deliver high-quality solutions. As part of a cross-functional team, you will be responsible for ensuring comprehensive manual and automated test coverage across our products. Your role will be critical in maintaining system reliability, performance, and seamless user experiences.
What you'll be doing:
- Partner with Product Managers and engineers early in discovery and development to identify risks, edge cases, and gaps before implementation
- Drive test strategy by defining methodologies, quality criteria, and risk-based coverage aligned with User Stories and business goals
- Own end-to-end test planning, from scope definition to execution, ensuring consistent and reliable validation of features
- Drive test automation with a focus on business impact and cost-efficiency, ensuring balanced coverage across the test pyramid and repeatable patterns
- Proactively identify, prioritize, and communicate defects with clear, reproducible reports aligned with team standards
- Leverage data analysis (e.g., SQL) to investigate issues, validate assumptions, and support quality decisions
- Close the loop between production signals (crash analytics, non-fatals, user-impact metrics) and pre-release test design, contributing to incident postmortems
- Act as a quality advocate within Agile teams, influencing processes to improve speed, predictability, and outcomes
- Contribute to and elevate QA practices across the team, driving continuous improvement and knowledge sharing
Your Experience
Must have:
- 5+ years in software quality assurance
- Experience as a QA engineer working with backend technologies such as APIs, DBs (including SQL knowledge) and services
- Experience with mobile platforms and ecosystems, iOS and Android
- Experience in test automation
- Being proactive in gathering non-functional requirements within the team and other departments
- Excellent understanding of testing methodology in Agile product lifecycle
- Positive thinking, quality orientation, reliability, ability to organize, exceptional attention to details
- Good English level – both spoken and written
Nice to have:
- Cross-browser, including mobile browsers and especially Facebook browser, testing with focus on page loading speed (First contentful paint, First Input Delay, server response time)
- Experience in load testing
- Understanding of A/B experimentation and its implication on testing strategy
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
IT business partner
Share this job
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
You will act as the primary bridge between the business and IT, translating strategic objectives into technology solutions. Reporting to the Head of IT, you will own the enterprise SaaS portfolio, build trusted relationships with senior business stakeholders, and, as a confident, hands-on IT generalist, ensure the day-to-day technology experience of staff is seamless. This is a standalone role requiring someone who is equally comfortable presenting a technology strategy to the leadership team and troubleshooting a conferencing system before an important meeting.
Responsibilities
Technology Strategy & Planning
- Partner with senior leaders and department heads to understand business goals and co-develop a technology strategy that actively enables them
- Support the Head of IT to develop and maintain a multi-year IT roadmap, presenting it to stakeholders on a regular basis
- Identify and champion opportunities to improve business performance, efficiency and competitive advantage through technology
- Contribute to annual IT budgeting and business case development for technology investment.
SaaS & Software Lifecycle Management
- Own the end-to-end lifecycle of the company's SaaS portfolio — from evaluation and procurement through to renewal, rationalisation and retirement
- Manage vendor relationships, contracts and licence optimisation to ensure value for money and appropriate usage
- Maintain a clear, current inventory of all software assets, their owners, costs and renewal schedules
- Lead or support the selection and implementation of new software platforms, working closely with business stakeholders and the offshore support team.
Stakeholder Engagement & Relationship Management
- Serve as the trusted, visible, on-site technology advisor to business stakeholders at all levels
- Translate business needs into clear, actionable requirements for the offshore IT support team
- Act as the escalation point and internal advocate for the business when offshore support is insufficient or unresponsive
- Produce clear, accessible technology communications and updates for non-technical audiences.
IT Governance & Risk
- Ensure software and systems comply with relevant data protection, security and licensing obligations
- Identify and manage technology-related risks, feeding into broader business continuity and risk planning
- Define and maintain appropriate IT policies and standards in conjunction with the Head of IT.
Hands-on Support (as required)
- Provide practical, on-site support when the situation demands it — including troubleshooting meeting room AV and conferencing equipment, supporting new starter onboarding, and resolving issues that cannot be addressed remotely
- Be the visible, competent face of IT in the office, ensuring issues are resolved quickly and professionally.
Skills & Experience
Essential
- Demonstrable experience in an IT Business Partner, IT Manager or senior technology generalist role, with responsibility for stakeholder engagement at a senior level
- Strong understanding of SaaS platforms and software contract and licence management
- Proven ability to develop or contribute to technology roadmaps and strategies, and to communicate them clearly to non-technical audiences
- Experience translating business requirements into IT solutions, working with internal or external delivery teams
- Comfortable operating hands-on in a small company environment, including resolving practical IT issues as needed
- Strong organizational and prioritization skills, with the ability to manage a varied workload independently.
Desirable
- Experience managing or coordinating an offshore or outsourced IT support function
- Familiarity with IT governance frameworks such as ITIL
- Experience with software procurement and vendor negotiation
- Exposure to cyber security principles and data protection obligations (e.g. UK GDPR).
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Senior/ Lead Android Engineer
Share this job
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
As an Android Engineer at Flo, you'll help shape the mobile experience for millions of people, and do genuinely meaningful work in women's health. Our app is trusted by 1 in 4 women aged 18–44 in the US and used across 100+ countries, with machine learning and AI powering accurate cycle predictions and personalised, medically credible health insights.
We build large-scale mobile applications with rich, intuitive interfaces - optimised for speed, accessibility and privacy. You'll join a cross-functional team working across the full mobile lifecycle, from feature ideation through to release and iteration, with real ownership over value delivery end to end.
We're not a feature factory. Our engineers are pragmatic problem-solvers who thrive in fast-moving environments and care about what they ship. You'll have genuine scope to experiment, lead ambitious product initiatives and implement solutions that matter - not just clear a backlog. Flo is a constantly evolving product, and we give our engineers the trust and autonomy to evolve it.
Your Experience
Must have:
- 7+ years of hands-on Android development experience, with a track record of shipping and maintaining production applications at scale
- Experience building large, complex mobile applications with polished, performant UIs - ideally for global consumer audiences
- Strong proficiency in Java, with solid object-oriented design principles and a keen eye for clean, maintainable code
- Deep knowledge of the Android ecosystem - including platform fragmentation, UI design patterns, and delivering consistent experiences across a wide range of screen sizes and devices
- Solid familiarity with Google technologies, Play Store submission processes, and Google's development guidelines
- A good grasp of the full mobile product lifecycle, with practical experience working within Agile teams
Nice to have:
- Knowledge of Kotlin programming language, Clean Architecture and reactive programming
- An eye for UX and interaction design - you care about how things feel, not just how they work
- Hands-on experience with mobile CI/CD tooling, including build, test and release automation
- Experience integrating with analytics and BI systems, including A/B testing frameworks
- Experience with alternative Android markets
- Experience optimising data usage over mobile networks and building offline-first applications
What you'll be doing
You'll be responsible for:
- Developing features using modern frameworks, libraries and in-house components - contributing to a shared codebase built to last
- Delivering polished, intuitive user experiences that meet a high bar for design and usability
- Maintaining and improving a continuous delivery pipeline, ensuring fast, reliable and safe releases to production
#LI-Hybrid #LI-AJ1
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Senior DevEx engineer
Share this job
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
The Scale of the Challenge
At Flo we don’t just have users, we have a global community. We are the #1 women’s health app, in the last month alone, we saw 8.6M new installs and a 2.8M increase in active users.
This level of growth requires world-class engineering — increasingly augmented by AI, with engineers moving towards agentic development, where they design systems that collaborate with AI agents rather than writing everything manually. We are looking for a Senior DevEx Engineer to join Velocity, our Internal Platform team. Your mission is to build the foundation that allows our engineering organization to ship code faster, safer, and at a scale most engineers never get to encounter.
The Mission: Velocity
The Velocity team exists to eliminate friction. We treat our internal developers as our customers. You will:
- Abstract Complexity: Build intuitive tooling that enables self-service allowing devs to focus on product logic.
- Standardize Excellence: Bake best-practices, security, observability, and scalability into the core stack so they aren't afterthoughts.
What You Will Do
- Developer Experience: Build self-service tools that give product teams autonomy without sacrificing system stability.
- Platform Engineering: Architect and evolve our core stack (AWS, EKS, Terraform).
- Systems Resilience: Lead reliability initiatives, including business continuity planning and a sustainable on-call rotation.
- High-Scale Privacy: Support the infrastructure for industry-leading privacy features, such as our TIME-recognized "Anonymous Mode."
- Observability: Implement best-in-class monitoring (metrics, logs, tracing) to ensure issues are identified and mitigated before they impact the user.
What You Bring
- Experience: 6+ years in Infrastructure, DevEx, SRE, or DevOps roles supporting high-traffic, distributed environments.
- Cloud Native Mastery: Deep expertise in AWS and Kubernetes (K8s) is essential.
- Automation Mindset: Proficient in Infrastructure as Code (Terraform) and Configuration Management.
- Technical Breadth: Ability to script and build tools in multiple languages (Python, Go, Scala, or Bash).
- Deep Systems Knowledge: You’re comfortable debugging at the Linux kernel level and analyzing performance via, for example, flame graphs.
- Communication: A "doc-first" mentality and the ability to collaborate across distributed product teams.
Bonus Points
- Background in hardening infrastructure for high-compliance or security-sensitive environments.
- Experience scaling consumer tech platforms with millions of concurrent users.
- Professional Accreditation such as AWS Professional Architect, CKAD or KCSA.
Why Join Flo?
- High Impact: Flo is re-writing women’s health.
- Autonomy: We hire experts and empower you to deliver.
- Cutting-Edge Stack: Work with modern tools like Sentry, EKS, and Terraform in a fast-paced, "fail-forward" environment at a huge scale.
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Senior DevEx Engineer
Share this job
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
The Scale of the Challenge
At Flo we don’t just have users, we have a global community. We are the #1 women’s health app, in the last month alone, we saw 8.6M new installs and a 2.8M increase in active users.
This level of growth requires world-class engineering — increasingly augmented by AI, with engineers moving towards agentic development, where they design systems that collaborate with AI agents rather than writing everything manually. We are looking for a Senior DevEx Engineer to join Velocity, our Internal Platform team. Your mission is to build the foundation that allows our engineering organization to ship code faster, safer, and at a scale most engineers never get to encounter.
The Mission: Velocity
The Velocity team exists to eliminate friction. We treat our internal developers as our customers. You will:
- Abstract Complexity: Build intuitive tooling that enables self-service allowing devs to focus on product logic.
- Standardize Excellence: Bake best-practices, security, observability, and scalability into the core stack so they aren't afterthoughts.
What You Will Do
- Developer Experience: Build self-service tools that give product teams autonomy without sacrificing system stability.
- Platform Engineering: Architect and evolve our core stack (AWS, EKS, Terraform).
- Systems Resilience: Lead reliability initiatives, including business continuity planning and a sustainable on-call rotation.
- High-Scale Privacy: Support the infrastructure for industry-leading privacy features, such as our TIME-recognized "Anonymous Mode."
- Observability: Implement best-in-class monitoring (metrics, logs, tracing) to ensure issues are identified and mitigated before they impact the user.
What You Bring
- Experience: 6+ years in Infrastructure, DevEx, SRE, or DevOps roles supporting high-traffic, distributed environments.
- Cloud Native Mastery: Deep expertise in AWS and Kubernetes (K8s) is essential.
- Automation Mindset: Proficient in Infrastructure as Code (Terraform) and Configuration Management.
- Technical Breadth: Ability to script and build tools in multiple languages (Python, Go, Scala, or Bash).
- Deep Systems Knowledge: You’re comfortable debugging at the Linux kernel level and analyzing performance via, for example, flame graphs.
- Communication: A "doc-first" mentality and the ability to collaborate across distributed product teams.
Bonus Points
- Background in hardening infrastructure for high-compliance or security-sensitive environments.
- Experience scaling consumer tech platforms with millions of concurrent users.
- Professional Accreditation such as AWS Professional Architect, CKAD or KCSA.
Why Join Flo?
- High Impact: Flo is re-writing women’s health.
- Autonomy: We hire experts and empower you to deliver.
- Cutting-Edge Stack: Work with modern tools like Sentry, EKS, and Terraform in a fast-paced, "fail-forward" environment at a huge scale.
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Cloud Security Engineer
Share this job
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
The Scale of the Challenge
At Flo we don't just have users, we have a global community. We are the #1 women's health app, in the last month alone, we saw 8.6M new installs and a 2.8M increase in active users.
When millions of people trust you with their most personal health data, security isn't a feature — it's a foundation. We are looking for a Cloud Security Engineer to join Velocity, our Internal Platform team. Your mission is to ensure that every system, pipeline, and tool our engineers rely on is secure by default — so they can ship fast without ever compromising trust.
The Mission: Velocity
The Velocity team exists to eliminate friction. We build and own the foundation everything else runs on: cloud infrastructure, developer tooling, and SRE practices. You will:
- Embed Security Into the Platform: Bake security, compliance, and best practices into the core stack so they're invisible to developers and impossible to skip.
- Automate Everything: Drive security-as-code across infrastructure, CI/CD pipelines, and container lifecycles — making manual gates a thing of the past.
What You Will Do
- Cloud Security Posture: Own and continuously strengthen Flo's AWS security posture using tools like GuardDuty, Inspector, Security Hub, and SSM Patch Manager.
- Container & Supply Chain Security: Harden container image security end-to-end — patch vulnerabilities automatically with Copacetic, sign and verify images with Cosign/Sigstore, and enforce policies at admission with Kyverno.
- Policy as Code: Manage CI/CD security across the organisation using policy-as-code tooling (Kyverno, Checkov), ensuring standards are enforced programmatically.
- Security Observability: Build visibility into security performance by measuring and visualising actionable metrics using tools like Databricks Dashboards or Looker.
- High-Scale Privacy: Support the infrastructure for industry-leading privacy features, such as our TIME-recognised "Anonymous Mode."
- Culture & Thought Leadership: Shape Flo's broader security culture through proactive engagement, documentation, and cross-team collaboration.
What You Bring
- Experience: 7+ years in Infrastructure Security, Cloud Security, or Security Engineering roles.
- Cloud Native Mastery: Deep expertise in AWS security services and best practices is essential.
- Infrastructure as Code: Proficient in Terraform and Terragrunt — you run everything as code.
- Container Security: Strong knowledge of Kubernetes security, image hardening, and admission control.
- Identity & Access: Solid understanding of identity management principles — SSO, OAuth, JWT, SAML.
- Automation Mindset: Comfortable scripting in Python, Bash, or similar to automate security workflows.
- Network Security: Understanding of modern network security principles and their practical application.
- SSDLC: Experience building Secure Software Development Lifecycle phases into engineering workflows.
Bonus Points
- Experience with security monitoring and event correlation systems (IDS/IPS, SIEM, AWS-native tooling).
- Knowledge of Zero Trust Architecture and its implementations (e.g., Cloudflare).
- Familiarity with secret management processes and tools.
- Experience in multi-cloud environments (AWS and preferably GCP).
- Understanding of business continuity principles (BIA, DRP).
- Professional accreditations such as AWS Security Specialty, CKS, or CISSP.
Why Join Flo?
- High Impact: Your work directly protects the health data of millions - Flo is rewriting women's health, and you'll make sure it's done securely.
- Autonomy: We hire experts and empower you to deliver.
- Cutting-Edge Stack: Work with modern security tooling (GuardDuty, Kyverno, Cosign, Elastic Cloud Security) deployed on real production infrastructure at massive scale.
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Engineering Manager
Share this job
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
What you'll be doing
You'll be responsible for:
- Lead and scale a team of 5+ engineers and organise work towards the product vision
- Work closely with the development team and Product Manager to deliver business value in a timely manner while following and improving upon established quality metrics.
- Orchestrate technical aspects of the product development
- Implement the most suitable development processes (principles, rules) for the team
- Coach the team to learn and apply engineering best practices in various areas starting from UI standards and CI/CD to API design and Secure SDLC
- Continue to form and grow your team – hire and onboard new members, perform training activities, help team members to follow their path for professional growth
- Solve or escalate issues within and outside the team
- Ensure healthy collaboration with other teams, identify and manage technical and organisational dependencies
- Support an environment of transparency by providing prompt feedback, both gently and honestly
Your Experience
Must have:
- 6+ years of experience in one of the following programming languages: Scala, Java, Kotlin, Objective C/Swift.
- Experience in designing and implementing robust distributed systems
- 4+ years of team management: establishing processes in a cross-functional team, building tech roadmaps, experience in change management
- People management skills – providing one-on-ones, resolving conflicts, creating career development plans, mentoring and growing engineers
- Extensive knowledge of engineering practices and Agile methodologies
Nice to have:
- Full-stack development experience
- Hands-on experience with DevOps tools and practices
- Outstanding communication skills
- Experience building consumer or client-facing products
- Understanding of A/B testing techniques
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Cloud Security Engineer
Share this job
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
The Scale of the Challenge
At Flo we don't just have users, we have a global community. We are the #1 women's health app, in the last month alone, we saw 8.6M new installs and a 2.8M increase in active users.
When millions of people trust you with their most personal health data, security isn't a feature — it's a foundation. We are looking for a Cloud Security Engineer to join Velocity, our Internal Platform team. Your mission is to ensure that every system, pipeline, and tool our engineers rely on is secure by default — so they can ship fast without ever compromising trust.
The Mission: Velocity
The Velocity team exists to eliminate friction. We build and own the foundation everything else runs on: cloud infrastructure, developer tooling, and SRE practices. You will:
- Embed Security Into the Platform: Bake security, compliance, and best practices into the core stack so they're invisible to developers and impossible to skip.
- Automate Everything: Drive security-as-code across infrastructure, CI/CD pipelines, and container lifecycles — making manual gates a thing of the past.
What You Will Do
- Cloud Security Posture: Own and continuously strengthen Flo's AWS security posture using tools like GuardDuty, Inspector, Security Hub, and SSM Patch Manager.
- Container & Supply Chain Security: Harden container image security end-to-end — patch vulnerabilities automatically with Copacetic, sign and verify images with Cosign/Sigstore, and enforce policies at admission with Kyverno.
- Policy as Code: Manage CI/CD security across the organisation using policy-as-code tooling (Kyverno, Checkov), ensuring standards are enforced programmatically.
- Security Observability: Build visibility into security performance by measuring and visualising actionable metrics using tools like Databricks Dashboards or Looker.
- High-Scale Privacy: Support the infrastructure for industry-leading privacy features, such as our TIME-recognised "Anonymous Mode."
- Culture & Thought Leadership: Shape Flo's broader security culture through proactive engagement, documentation, and cross-team collaboration.
What You Bring
- Experience: 7+ years in Infrastructure Security, Cloud Security, or Security Engineering roles.
- Cloud Native Mastery: Deep expertise in AWS security services and best practices is essential.
- Infrastructure as Code: Proficient in Terraform and Terragrunt — you run everything as code.
- Container Security: Strong knowledge of Kubernetes security, image hardening, and admission control.
- Identity & Access: Solid understanding of identity management principles — SSO, OAuth, JWT, SAML.
- Automation Mindset: Comfortable scripting in Python, Bash, or similar to automate security workflows.
- Network Security: Understanding of modern network security principles and their practical application.
- SSDLC: Experience building Secure Software Development Lifecycle phases into engineering workflows.
Bonus Points
- Experience with security monitoring and event correlation systems (IDS/IPS, SIEM, AWS-native tooling).
- Knowledge of Zero Trust Architecture and its implementations (e.g., Cloudflare).
- Familiarity with secret management processes and tools.
- Experience in multi-cloud environments (AWS and preferably GCP).
- Understanding of business continuity principles (BIA, DRP).
- Professional accreditations such as AWS Security Specialty, CKS, or CISSP.
Why Join Flo?
- High Impact: Your work directly protects the health data of millions - Flo is rewriting women's health, and you'll make sure it's done securely.
- Autonomy: We hire experts and empower you to deliver.
- Cutting-Edge Stack: Work with modern security tooling (GuardDuty, Kyverno, Cosign, Elastic Cloud Security) deployed on real production infrastructure at massive scale.
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Engineering Manager
Share this job
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
We’re not chasing product–market fit. We’ve found it. Flo is used by 1 in 4 women aged 18–44 in the US. Last year, $200M raised. Earlier this year: 8.6M new installs, 2.8M user jump, That kind of scale doesn’t just happen. It’s engineered.
That’s where you come in.
We’re hiring Engineering Managers in London to lead a squad building the next generation of privacy-first, AI-powered health tools - and shipping them to a global audience.
What you’ll do
- Lead and grow a high-performing team of engineers
- Set direction, ship fast, own outcomes
- Build systems that are reliable, scalable and secure
- Guide architecture decisions and unblock delivery
- Champion engineering quality, speed and autonomy
- Coach your team - hire, develop, promote
- Collaborate across disciplines to turn product ideas into reality
What you bring
- 6+ years coding in Scala, Java, Kotlin or Objective-C/Swift
- Experience building distributed systems at scale
- 4+ years managing engineers and leading teams
- Solid track record of hiring, mentoring and building inclusive cultures
- Deep understanding of software engineering best practices and agile delivery
- Strong product mindset - you care about the user, not just the stack
Nice to have
- Exposure to ML or data-powered products
- Full-stack experience
- Hands-on with CI/CD and DevOps tooling
- Background in consumer tech or mobile apps
- A/B testing know-how
#LI-Hybrid, #LI-KP1
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Senior AI/ML engineer
Share this job
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
We are looking for a Senior Software Engineer with deep expertise in AI/ML infrastructure to join our AI Platform team and help build the GenAI platform that powers every AI feature at Flo.
You will bridge core infrastructure, data engineering, and LLM development to deliver production-grade medical safety judges, fine-tuning pipelines, evaluation frameworks, and real-time personalisation. The team operates 60+ LLM-based evaluation judges, develops proprietary fine-tuned health models, and maintains active partnerships with Databricks, Google, OpenAI, Anthropic, and AWS.
What you’ll do
- LLM Judge Ecosystem: build and scale Judge-as-a-Service, prompt registries, calibration pipelines, and evaluation orchestration using MLflow 3.x
- Fine-Tuning and Serving: develop LoRA/SFT/preference optimisation pipelines for health-domain models (Llama, Gemma, MedGemma) and manage model serving at scale on Databricks
- Data and Evaluation Pipelines: build synthetic Q&A generation, golden test sets, reward function engineering, and Delta table schemas in Unity Catalog for reliable, reproducible evaluation data
- Infrastructure: maintain Terraform-managed AWS infrastructure (EKS, S3, IAM), Databricks AI Gateway, and CI/CD pipelines (GitHub Actions) with evaluation gates and progressive rollout
- Cross-Functional Impact: collaborate with Product, Security, Analytics, and Medical teams, develop internal SDKs and APIs consumed by 5+ teams, and engage directly with technology partners on pre-release capabilities
Experience and skills
Must have:
- Engineering maturity: 7+ years of software engineering, 4+ years focused on ML/AI platforms
- LLM experience: recent hands-on work with at least one of: fine-tuning, prompt engineering, LLM evaluation, or model serving
- Technical stack: strong Python across production services and data pipelines, data engineering fundamentals (Spark, Delta tables, Parquet)
- Platform and infrastructure: Databricks (MLflow, Unity Catalog, Model Serving), AWS (EKS/Kubernetes, IAM), Terraform, GitHub Actions
- Cross-domain flexibility: comfort working across ML, data engineering, and infrastructure. You don’t need to be expert in all three, but you contribute wherever the team needs it
Nice to have:
- LLM evaluation frameworks (judges, graders, calibration methodology) or fine-tuning techniques (LoRA, RLHF/DPO, model distillation)
- ML data engineering: synthetic data generation, evaluation dataset design, annotation pipelines
- Healthcare, regulated industry, or safety-critical AI systems experience
- Prompt optimisation frameworks (DSPy or similar), feature stores (Tecton)
#LI-KP1 #LI-Hybrid
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health
Senior Backend Engineer
Share this job
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
Build systems that power the #1 Health App for Women
We’re not a startup guessing what might work anymore, we’re operating at serious scale. Flo is used by 1 in 4 women aged 18–44 in the US. And we just hit our biggest month ever with 8.6M installs and a 2.8M MAU jump. The engineering behind that? Complex, distributed, secure and yours to help shape.
At Flo, backend engineering is core product work.
We build:
- Data-driven health insights that genuinely change lives
- Distributed systems that stay fast, available and scalable under massive real-time demand
- Privacy-first features like Anonymous Mode - recognised in TIME’s Best Inventions
- Tooling and platforms that help Flo’s teams move faster, with fewer bottlenecks
We’re tech-agnostic when hiring for backend. If you’ve built and run distributed systems and want to work in Scala (or already do), great. We’ll support your ramp-up. What matters most: you can solve problems, own outcomes, and keep learning.
Your Experience
You’ll thrive here if you:
- Have 7+ years’ experience building distributed backend systems
- Know what it takes to make systems fast, reliable and secure and when to prioritise each
- Are fluent in Java, Scala, Python or similar (and curious enough to learn Scala with us)
- Get DevOps, databases (SQL and NoSQL) and love designing APIs that just work
- Have a strong handle on writing clean, documented, version-controlled code
- Take ownership, show initiative and don’t wait to be told
- Are product-minded and always thinking about the end-user impact
Bonus if you’ve worked with:
- Stream processing
- Public cloud infrastructure (AWS, GCP etc.)
What’s in it for you?
You’ll join a senior engineering team that moves fast, thinks big and builds tech used by millions daily. You’ll work on meaningful problems with real impact - in health, privacy and scale. This isn’t just code for the sake of code. This is building the future of personalised health.
#LI-Hybrid #LI-LM12
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:
- Competitive salary and annual reviews
- Opportunity to participate in Flo’s performance incentive scheme
- Paid holiday, sick leave, and female health leave
- Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents
- Accelerated professional growth through world-changing work and learning support
- In-person collaboration and work in a hybrid model, with 3 days per week spent in the office
- 5-week fully paid sabbatical at 5-year Floversary
- Flo Premium for friends & family, plus more health, pension and wellbeing perks
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.
Ready to apply?
Apply to Flo Health