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Location: London 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 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: 15+ years in AWS 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), a coding background with experience with Python, Scala or Go would be beneficial. Technical Breadth: You will feel comfortable at all levels of the stack, from developing front ends using React through to engineering Terraform modules to deliver infrastructure abstractions. Communication: A "doc-first" mentality and the ability to collaborate across distributed product teams. AI First: You will have experience of the impact which AI automation is having on development teams and the software delivery lifecycle and have strong ideas on how to support them through it 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 .

Location: London 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 seeking a HIPAA Security Engineer to join our team in London, UK . While this posting is open to candidates currently based in the United States, this position requires full-time relocation to London . We offer comprehensive visa sponsorship and a full relocation support package to ensure a smooth transition for the selected candidate. As a key member of Flo’s Security Architecture team, you will lead the design and operation of our US Healthcare security controls. You'll work directly with Product and Engineering teams to translate HIPAA and SOC 2 requirements into technical security controls across Flo's AWS multi-account environment - including EKS, Lambda, RDS, S3, VPC networking, IAM, and KMS. You'll own the roadmap for HIPAA compliance and SOC 2 Type II certification, working closely with external auditors and professional services partners, and partnering with Engineering and Legal to build a secure, compliant platform for millions of users. Your Experience Must have: 7+ years in security, compliance, or risk management (3+ in a leadership capacity), with a Bachelor's degree in a related field or equivalent experience. Deep expertise in SOC 2 and HIPAA frameworks within the AWS environment. Familiarity with PHI handling, GRC and compliance automation platforms, and exposure to enterprise architecture frameworks such as TOGAF. Strong ability to manage multiple concurrent audit and certification workstreams. Excellent written and verbal communication, with the ability to translate complex compliance requirements into clear actions for engineering and business teams. Nice to have: CISA, CISM, or CISSP certifications Experience with NIST 800-53, Cloud Security Alliance (CSA), and Center for Internet Security (CIS) frameworks Experience in healthcare or another regulated industry; HITRUST experience a plus Experience building compliance roadmaps in early-stage startups Exposure to containerization (Docker/Kubernetes), serverless, and big data platforms Exposure to DevSecOps and sprint-based Agile development Vendor management experience What you'll be doing You'll be responsible for: Compliance Leadership: Lead annual SOC 2 and HIPAA certifications, managing interfaces with external auditors and professional services. Technical Control Design: Partner with Engineering to harden AWS workloads (EKS, EC2, data pipelines, and more) to meet HIPAA and SOC 2 controls; perform technical security design reviews and architectural risk assessments for services handling PHI. Policy & Risk: Define and maintain security policies and standards; embed risk assessment activities within engineering processes, and evolve Flo's security risk management framework. Vendor Risk Management: Support vendor risk activities including contract reviews and security posture assessments. Operational Excellence: Partner with control owners to automate evidence gathering and ensure controls reduce friction rather than creating it. Stakeholder Management: Serve as the primary Security POC for US regulators and partners; support the wider Security team with ISO 27001/27701 alignment; report risk status to security leadership. Tooling: Manage and integrate GRC and compliance automation platforms to streamline monitoring and reporting. #LI-AJ1 #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 .

Location: London 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 About the role You’ll help Flo build a trusted, secure, audit-ready platform for the millions of people who use our women’s health app. You’ll support our SOC 2 Type II and ISO 27001 programs and help implement HIPAA safeguards, all within Flo’s integrated Information Security and Privacy Management System (ISPMS). This is a hands-on role. It needs strong applied security architecture skills, especially secure design reviews and technical control validation across AWS (EKS, Lambda, RDS, S3, VPC, IAM, KMS). You’ll work with our professional services partners, auditors, the Security team, and the Privacy, Product and Platform Engineering teams. Together you’ll design controls that reduce friction, so the business can move fast and stay secure. What you’ll do Support SOC 2 and ISO 27001 certifications and HIPAA safeguard implementation, and act as a point of contact for external auditors. Define and maintain security policies, standards and procedures. Help control owners put controls into practice and automate evidence gathering for audit readiness. Run technical design reviews and architectural risk assessments for AWS services, including data flows that handle PHI. Work with Engineering to harden AWS workloads (EKS, EC2, data pipelines) against industry best practices. Improve Flo’s security risk management framework, and track and report risks to leadership. Contribute to vendor risk management, including contract reviews and security assessments. Roll out security training and awareness campaigns. What you’ll bring 7+ years in security architecture, compliance or risk management. A degree in a related field is a plus. Hands-on experience with ISO 27001 and/or SOC 2 in a cloud-based SaaS environment. Familiarity with security controls for sensitive data. Experience with GRC and compliance automation platforms. The ability to manage several audit workstreams at once. Excellent communication skills, and the ability to turn compliance requirements into clear actions for engineering and business teams. Nice to have Working knowledge of the HIPAA Security Rule and PHI handling (highly valued). CISA, CISM or CISSP certification. Experience with NIST 800-53, CSA, CIS or HITRUST. A background in healthcare or another regulated industry. Experience building compliance roadmaps at a startup. Exposure to Kubernetes/Docker, serverless, big data platforms or DevSecOps. Experience with Agile delivery and vendor management. Annual Salary Range (ranges may vary based on skills and experience) £100,000 — £130,000 GBP 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 .

Location: Vilnius 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 looking for a Senior Frontend Engineer to help us build the next generation of Flo’s platform and user experiences. You’ll work on the foundation that powers interactive surveys and dynamic content inside the Flo app — building SDKs, reusable components, and internal tooling that enable other product teams to deliver exceptional experiences quickly and reliably. Our frontend stack is based on React , TypeScript , and Next.js , with a strong focus on performance, maintainability, and testing. We care deeply about quality: we use TypeScript for type safety, Jest and Playwright for automated testing, and continuously evolve our design system and UI Kit. What you'll be doing: Design, build, and maintain high-quality user-facing components and platform SDKs that enable survey and interactive experiences in the Flo ecosystem. Collaborate with product, design, and backend engineers to deliver flexible and scalable solutions. Contribute to Flo’s design system and shared UI libraries, ensuring consistency and reusability across products. Refactor and improve existing codebases for performance, reliability, and maintainability. Write clean, modular, well-documented code and advocate for engineering best practices. Actively participate in the frontend community at Flo, sharing ideas and driving improvements in architecture and development processes. Your Experience Must have: 7+ years of experience building, shipping, and maintaining modern web applications. Expert-level knowledge of HTML, CSS, and JavaScript (ES6+). Deep experience with React and modern frontend tooling. Solid grasp of object-oriented design patterns and the ability to write efficient, well-structured algorithms You must use AI coding agents as your default way of working — writing code manually is the exception, not the rule. Proven ability to create adaptive, responsive, and accessible user interfaces. A product mindset and strong collaboration skills — you care about how your work impacts the user. Nice to have: Familiarity with Next.js, Contentful, or similar frameworks and CMS solutions. Experience with A/B testing and experimentation frameworks. Understanding of analytics and BI integrations. Salary Range - gross per month (ranges may vary based on skills and experience) €5.900 — €8.300 EUR 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 .

Location: London 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 Senior Product Designers at Flo play a pivotal role in shaping complex, system-level design solutions that elevate user experiences across the Flo app. This role combines deep expertise in UX thinking, interaction design, systemic thinking, AI tooling and visual craft with the ability to architect scalable frameworks and influence product direction. As a senior individual contributor, you will be tackling the most challenging design problems, setting the quality bar for the team, and ensuring designs are accessible, inclusive, and emotionally resonant. You will collaborate with product, engineering, research, medical, legal and content disciplines, leveraging high-fidelity prototypes to drive critical business decisions, raising craft excellence, and contributing significantly to Flo’s overarching vision. Your Experience Must have: 8+ years of professional experience designing mobile applications. Portfolio demonstrating expertise in systemic design, advanced prototyping skills, micro-interactions, and the ability to architect solutions with measurable product impact. Experience creating scalable frameworks, contribution to design systems, and interaction models. Proficiency in Figma and advanced prototyping tools (e.g., Protopie). Experience using motion and animation tools (e.g., Lottie, Rive, After Effects). Experience leveraging AI/LLM tools to accelerate design exploration and streamline concept validation (e.g., Claude, Vercel). Strong communication and presentation skills; ability to distill complex ideas into clear narratives and influence stakeholders. Deeply collaborative, with experience mentoring and raising the craft bar for design teams. Nice to have: Experience designing gamified or behaviour-change-driven experiences. Experience working in health tech or regulated industries What you'll be doing You'll be responsible for: Lead complex design projects (0 → 1), creating scalable frameworks and systems that support growth and innovation. Proactively tackle complex and ambiguous challenges, defining requirements and prioritising the most impactful workstreams to deliver clear, compelling, user-centred experiences. Design features, e2e flows, and experiments that align with user needs and business goals (e.g., engagement, retention, etc.). Produce high-fidelity prototypes and mock-ups using Figma or advanced tools, strategically utilising AI to streamline the concept-to-validation process. Develop and evolve interaction models, motion principles, and visual systems that scale across teams and inspire adoption. Collaborate closely with product managers, engineers, researchers, and content designers to deliver cohesive solutions. Proactively mentor peers, junior designers, and non-designers, providing actionable feedback and upskilling guidance to raise the overall craft bar. Advocate for emotionally intelligent, ethical design and ensure accessibility standards are upheld at every stage. Be a key contributor to our design system, ensuring accessibility, inclusivity, and scalability in all outputs. Integrate AI tools into day-to-day work. What you'll be measured on: Deliver complex design initiatives that significantly improve user engagement, retention, and user satisfaction outcomes. Strengthen Flo’s design systems, frameworks, animation and motion principles to enable scalable, high-quality design across teams. Raise team capability and craft standards by mentoring peers and contributing to a culture of design excellence. #LI-AJ1 #LI-Hybrid Annual Salary Range (ranges may vary based on skills and experience) £85,000 — £105,000 GBP 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 .

Location: Vilnius 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 Salary Range - gross per month (ranges may vary based on skills and experience) €6.500 — €8.500 EUR 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 .

Location: London 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 Annual Salary Range (ranges may vary based on skills and experience) £95,000 — £120,000 GBP 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 .

Location: London, Vilnius 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 looking for a Senior Technical Product Manager to join our Health Records & Virtual Clinics team. This team is building the foundational infrastructure that powers Flo’s next generation of personalised healthcare experiences. Our mission is to integrate diverse health data sources, from clinical systems and external vendors to user-reported data, including data from wearables directly or via Health Connect/HealthKit into a unified, reliable, and actionable health record. This foundation will enable a new Virtual Clinics direction, delivering personalised, data-driven care journeys at scale. While this is a deeply technical and data-heavy area, we believe that the true value of health data is unlocked through intuitive, trustworthy, and beautifully designed user experiences. You will partner closely with product design to ensure complex, fragmented health data is translated into clear, intuitive, and user-friendly experiences. Your Experience Must have: 7+ years of experience in product management, including experience in platform, data, or infrastructure products Strong technical background, with experience working on APIs, data pipelines, or distributed systems Experience integrating third-party vendors, APIs, or complex ecosystems (healthcare experience is a strong plus) Solid understanding of data modeling, data quality challenges, and trade-offs in building scalable data platforms Proven passion for building high-quality user experiences, with a track record of partnering closely with design to ship intuitive and elegant products Ability to translate complex technical systems and data into simple, user-friendly interfaces and flows Experience working in regulated environments and collaborating with clinical, legal, privacy, and security stakeholders Proven ability to define and deliver products in ambiguous, fast-moving environments Strong analytical mindset, with experience defining and tracking metrics for platform/data products Track record of iterative delivery and experimentation, even within complex technical domains Excellent stakeholder management and communication skills, with the ability to align cross-functional teams around complex initiatives Passion for building impactful healthcare products and improving user outcomes through data What you'll be doing You'll be responsible for: Define and execute the product strategy and roadmap for Health Records and data integrations, enabling scalable and secure ingestion of data from multiple vendors and systems Own the end-to-end lifecycle of health data: from ingestion and normalization to enrichment and activation in downstream experiences Lead the development of a unified health data model that supports personalised user experiences, clinical use cases, and Virtual Clinics services Partner with design team to creation of best-in-class UI/UX patterns for surfacing health insights, longitudinal records, and care journeys Ensure that health data is presented in a way that is actionable, empathetic, and clinically responsible, balancing simplicity with accuracy Partner closely with Engineering, Data, Clinical, and Legal teams to ensure data accuracy, regulatory compliance, and user privacy. Own the creation of well-scoped product and technical specifications, and actively participate in technical trade-off discussions. Given the tech- and infrastructure-heavy nature of the team, operate as a deeply embedded partner within the squad, not just a stakeholder, contributing to architecture-level decisions and day-to-day execution Drive vendor integration strategy, including prioritisation, evaluation, and long-term partnership management Collaborate with AI Platform team to ensure high-quality structured data is available for models and personalised insights Balance speed and scalability, making high-judgment trade-offs across infrastructure, data quality, and user-facing impact Establish metrics to evaluate data quality, coverage, and downstream impact on user outcomes and business goals Stay on top of industry trends in digital health, interoperability, and virtual care, as well as evolving UX patterns in consumer health products #LI-Hybrid #LI-AJ1 Salary Range - London - gross per year (ranges may vary based on skills and experience) £91,000 — £117,000 GBP Salary Range - Vilnius - gross per month (ranges may vary based on skills and experience) €7.000 — €8.500 EUR 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 .

Location: London 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 AI Engineer with strong LLM and product engineering experience to join our AI Platform team and help ship the AI-driven features across our app — including personalized in-app content recommendations, conversational AI-powered insights, and AI-generated mobile push notifications. You will focus on the product-facing behavior of our GenAI features (relevance, quality, latency, and safety), using the platform’s judges, fine-tuning pipelines, and evaluation tools, and contributing to infrastructure work (Databricks, AWS, Terraform) as initiatives require it. What you’ll do Feature development: build and ship LLM-powered product features, including AI-generated mobile push notifications, personalized in-app content recommendations and custom user journeys, and conversational AI-powered insights — including structured output such as charts and widgets Latency and UX: reduce perceived and actual response latency through streaming, pregeneration, and inference-time tradeoffs, working closely with product and design on how AI output is experienced by users Prompt and model behavior: iterate on prompt design and calibration, use fine-tuned health-domain models (Llama, Gemma, MedGemma) where relevant, and work with the Judge-as-a-Service ecosystem to keep outputs safe and high quality Experimentation: help enable A/B testing for model and prompt changes, using evaluation gates to ship safely and measure impact Data and evaluation: contribute to synthetic Q&A generation, golden test sets, and evaluation dataset design that supports the features you’re building Infrastructure: contribute to Databricks, AWS (EKS), Terraform, or CI/CD work as initiatives require it Cross-functional impact: collaborate with Product, Security, Analytics, and Medical teams, and engage with technology partners (Databricks, Google, OpenAI, Anthropic, AWS) on pre-release capabilities relevant to your features Experience and skills Must have: 7+ years of software engineering, with recent hands-on experience building product features backed by LLMs experience with at least one of: prompt engineering, LLM evaluation, fine-tuning, or model serving strong Python, and comfort working with APIs/SDKs that wrap LLM calls, prompt templates, and structured outputs product sensibility: a track record of shipping user-facing features, with attention to latency, tone, and quality of AI output as experienced by end users comfort picking up new infrastructure tools (Databricks, AWS, Terraform, GitHub Actions) as needed — deep prior expertise not required Nice to have: LLM evaluation frameworks (judges, graders, calibration methodology) or fine-tuning techniques (LoRA, RLHF/DPO, model distillation) prompt optimisation frameworks (DSPy or similar) feature stores or personalization/ranking experience (relevant to in-app content recommendation work) healthcare, regulated-industry, or safety-critical AI systems experience data engineering fundamentals (Spark, Delta tables, Parquet) #LI-KP1 #LI-Hybrid Annual Salary Range (ranges may vary based on skills and experience) £120,000 — £180,000 GBP 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 .

Location: Vilnius 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 Salary Range - gross per month (ranges may vary based on skills and experience) €6.500 — €10.000 EUR 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 .