Job Description
We’re very proud of our achievements:
In July 2026, we secured a $200M investment led by General Atlantic to help revolutionise women’s health, and became the first purely digital consumer women’s health app to achieve unicorn status! ????
We’ve had 380M+ downloads, have over 70M monthly users, are #1 by installs in the iOS Health category, hit 4.+ stars on the App Store (3M+ reviews), are backed by + VCs, had a 40% revenue increase last year, and topped a valuation of $1B.
We’re a growing, ambitious HealthTech business building the essential digital health partner of tomorrow to empower women, girls, and people who menstruate with the knowledge and support they need to stay well and live better.
Our cycle, ovulation and pregnancy tracking, educational content and anonymised community platform have been trusted for years by millions to help them feel more in control of their health every day.
Now, we’re harnessing the power of data analytics and AI to build a smarter future, one where we all know our bodies better, with an aim to become the essential health partner to women worldwide.
The Job
Our engineers aren’t just building a better product; they’re making the world a better place by improving women’s health. We leverage machine learning and AI to provide accurate cycle predictions and relevant, personalized, medically credible health tips. We are committed to discover and empower our employees to implement brand-new solutions.
Flo is a place for experimentation and implementation opportunities at the senior level. Flo is not just a feature factory, we own value delivery end to end. Flo is a constantly evolving product. New features and technologies are added, hardening development. Our engineers have an average of 10 years of experience, so they can solve ambitious product tasks.
You can read more about the tech stack we use and the thinking behind it here: https://stackshare.io/v_ermolin/decisions/+15+3460
Your Experience
Must have:
• Expert-level knowledge of Android with 7+ years of experience developing, shipping, and maintaining mobile applications
• Experience developing large mobile applications with rich UI, preferably for global consumer markets
• Proficient in Java with strong object-oriented design skills
• Strong knowledge of different versions of Android, Android UI design principles, patterns, best practices, dealing with different screen sizes and aspect ratios
• Experience with Google technologies, development guidelines, Google Play processes for app submission and maintenance
• Good understanding of a mobile product life cycle; acquaintance with Agile methodologies
• Agile mindset, ambitious, motivated and a good team player
Nice to have:
• Knowledge of Kotlin programming language, Clean Architecture and reactive programming
• Knowledge of UX and Interaction design
• Experienced with mobile continuous delivery tooling (build, test and release automation)
• Integration with BI and analytical systems. A/B testing
• Experience with alternative Android markets
• Optimizing data usage over mobile networks and experience with offline-first apps
What You'll Be Doing
You'll be responsible for:
• Modern frameworks and libraries along with in-house components
• Spicy user experience and attractive design
• Continuous Delivery
Salary Range - per year
£88,000 - £12+,000 GBP
Salary ranges may vary depending on your skills, competencies and experience.
Reward
People perform better when they’re happy, paid well, looked after and supported.
On top of competitive salaries, Flo's employees have access to:
• A flexible working environment with the opportunity to come into the office and work from home
• Company equity grants through Flo’s Employee Share Option Plan (ESOP)
• Paid holiday and sick leave
• Fully paid female health and sick leave, in addition to holiday and regular sick leave
• Workations - an opportunity to work abroad for two months a year
• Six months paid maternity leave, and one months paid paternity leave (subject to qualifying conditions) inclusive of same-sex and adoptive parents
• Career growth, progression, and learning development resources
• Annual salary reviews
• Unlimited free premium Flo subscriptions
• A whole host of other benefits (health/pension/social schemes)
Our Culture
We’re problem solvers, we’re adaptable, we’re empathy driven and results led.
People here like working in a fast-paced, multi-national, multi-cultural and ever changing environment. Everyone has an impact on a powerful mission, and is happy to roll their sleeves up to ideate solutions and put them in place. Being part of a growing business means that sometimes it's not easy and we work hard, but our mission is always at the forefront of what we do.
Diversity, Equity and Inclusion
The strength of our workforce is in the diverse backgrounds of our employees, and Flo is committed to applying its equal opportunities policy at all stages of recruitment and selection. This means recruitment and selection of talent into Flo Health companies is only based on individual merit and qualifications directly related to professional competence. Shortlisting, interviewing, and selection will always be carried out without regard to gender identity or expression, ****** orientation, marital or civil partnership status, color, race, nationality, ethnic or national origins, religion or beliefs, ancestry, age, veteran status, mental or physical disability, medical condition, pregnancy or maternity status, trade union membership, or any other protected characteristics.
By applying for the above role, you confirm that you have reviewed our privacy notice for job applicants: https://flo.health/privacy-policy-for-job-applicants
In July 2026, we secured a $200M investment led by General Atlantic to help revolutionise women’s health, and became the first purely digital consumer women’s health app to achieve unicorn status! ????
We’ve had 380M+ downloads, have over 70M monthly users, are #1 by installs in the iOS Health category, hit 4.+ stars on the App Store (3M+ reviews), are backed by + VCs, had a 40% revenue increase last year, and topped a valuation of $1B.
We’re a growing, ambitious HealthTech business building the essential digital health partner of tomorrow to empower women, girls, and people who menstruate with the knowledge and support they need to stay well and live better.
Our cycle, ovulation and pregnancy tracking, educational content and anonymised community platform have been trusted for years by millions to help them feel more in control of their health every day.
Now, we’re harnessing the power of data analytics and AI to build a smarter future, one where we all know our bodies better, with an aim to become the essential health partner to women worldwide.
The Job
Our engineers aren’t just building a better product; they’re making the world a better place by improving women’s health. We leverage machine learning and AI to provide accurate cycle predictions and relevant, personalized, medically credible health tips. We are committed to discover and empower our employees to implement brand-new solutions.
Flo is a place for experimentation and implementation opportunities at the senior level. Flo is not just a feature factory, we own value delivery end to end. Flo is a constantly evolving product. New features and technologies are added, hardening development. Our engineers have an average of 10 years of experience, so they can solve ambitious product tasks.
You can read more about the tech stack we use and the thinking behind it here: https://stackshare.io/v_ermolin/decisions/+15+3460
Your Experience
Must have:
• Expert-level knowledge of Android with 7+ years of experience developing, shipping, and maintaining mobile applications
• Experience developing large mobile applications with rich UI, preferably for global consumer markets
• Proficient in Java with strong object-oriented design skills
• Strong knowledge of different versions of Android, Android UI design principles, patterns, best practices, dealing with different screen sizes and aspect ratios
• Experience with Google technologies, development guidelines, Google Play processes for app submission and maintenance
• Good understanding of a mobile product life cycle; acquaintance with Agile methodologies
• Agile mindset, ambitious, motivated and a good team player
Nice to have:
• Knowledge of Kotlin programming language, Clean Architecture and reactive programming
• Knowledge of UX and Interaction design
• Experienced with mobile continuous delivery tooling (build, test and release automation)
• Integration with BI and analytical systems. A/B testing
• Experience with alternative Android markets
• Optimizing data usage over mobile networks and experience with offline-first apps
What You'll Be Doing
You'll be responsible for:
• Modern frameworks and libraries along with in-house components
• Spicy user experience and attractive design
• Continuous Delivery
Salary Range - per year
£88,000 - £12+,000 GBP
Salary ranges may vary depending on your skills, competencies and experience.
Reward
People perform better when they’re happy, paid well, looked after and supported.
On top of competitive salaries, Flo's employees have access to:
• A flexible working environment with the opportunity to come into the office and work from home
• Company equity grants through Flo’s Employee Share Option Plan (ESOP)
• Paid holiday and sick leave
• Fully paid female health and sick leave, in addition to holiday and regular sick leave
• Workations - an opportunity to work abroad for two months a year
• Six months paid maternity leave, and one months paid paternity leave (subject to qualifying conditions) inclusive of same-sex and adoptive parents
• Career growth, progression, and learning development resources
• Annual salary reviews
• Unlimited free premium Flo subscriptions
• A whole host of other benefits (health/pension/social schemes)
Our Culture
We’re problem solvers, we’re adaptable, we’re empathy driven and results led.
People here like working in a fast-paced, multi-national, multi-cultural and ever changing environment. Everyone has an impact on a powerful mission, and is happy to roll their sleeves up to ideate solutions and put them in place. Being part of a growing business means that sometimes it's not easy and we work hard, but our mission is always at the forefront of what we do.
Diversity, Equity and Inclusion
The strength of our workforce is in the diverse backgrounds of our employees, and Flo is committed to applying its equal opportunities policy at all stages of recruitment and selection. This means recruitment and selection of talent into Flo Health companies is only based on individual merit and qualifications directly related to professional competence. Shortlisting, interviewing, and selection will always be carried out without regard to gender identity or expression, ****** orientation, marital or civil partnership status, color, race, nationality, ethnic or national origins, religion or beliefs, ancestry, age, veteran status, mental or physical disability, medical condition, pregnancy or maternity status, trade union membership, or any other protected characteristics.
By applying for the above role, you confirm that you have reviewed our privacy notice for job applicants: https://flo.health/privacy-policy-for-job-applicants
💡 Quick Summary
Seeking a career-building opportunity? The Senior/ Lead Android Engineer position is now open for candidates interested in the Software Developer Jobs sector. This role in London offers a professional environment and growth potential.
Requirement Snapshot: Candidates should possess basic communication skills, a proactive attitude, and the ability to work in a team. Experience in Software Developer Jobs is a plus.