---
title: 'Senior/ Lead Android Engineer at Flo Health'
canonical: 'https://feeny.ai/job/senior-lead-android-engineer-flo-health-vilnius-784s7fpq86zx'
type: 'job'
last_seen: '2026-09-08'
---

# Senior/ Lead Android Engineer at Flo Health

- **Company:** Flo Health
- **Location:** Vilnius, Lithuania
- **Compensation:** €7k–€9k
- **Posted:** 2026-04-27
- **Last confirmed live:** 2026-09-08
- **Apply:** https://job-boards.greenhouse.io/flohealth/jobs/7711802003

## Job description

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](https://flo.health/privacy-policy-for-job-applicants).

## About Flo Health

## Company Overview
- **One-liner**: Flo is a women’s hormonal health app that provides personalized, data-driven, and science-backed cycle, ovulation, fertility, and pregnancy tracking from first period to perimenopause.
- **Entity Type**: Private (Series C, raised $276.4M in total funding; reached unicorn status in July 2024)  
  [uk.linkedin.com](https://uk.linkedin.com/company/flohealth)
- **Headquarters**: London, United Kingdom (additional offices in Vilnius, San Francisco, and Amsterdam)  
  [flo.health](https://flo.health/about-flo) | [uk.linkedin.com](https://uk.linkedin.com/company/flohealth)
- **Founded**: 2015  
  [flo.health](https://flo.health/about-flo)
- **Founders**: Not publicly available

## Core Business
- **Primary industry**: Women’s health / digital health / consumer health technology
- **Target customers**: B2C – women and people who menstruate across all life stages (period, fertility, pregnancy, perimenopause)
- **Mission**: “Female health has been underfunded and undervalued for way too long. … [We] ensure you can trust Flo by verifying everything we share with our team of 120+ doctors and medical experts.”  
  [flo.health](https://flo.health/about-flo)

## Products & Services
- **[Flo App]**: All-in-one mobile application for cycle and symptom tracking, ovulation and fertility guidance, pregnancy and postpartum support, tailored health insights, and access to private health communities. Includes the **Flo Assistant** – an AI-powered feature for personalized advice.  
  [flo.health](https://flo.health/about-flo)
- **[Virtual Clinics]**: A new service area (under development) aimed at offering clinical support, as indicated by job postings for a Senior Product Designer (Virtual Clinics).  
  [Greenhouse](http://job-boards.greenhouse.io/flohealth)

## Market Standing
- **Valuation/Market Cap**: Unicorn status (valuation >$1B) achieved with its Series C round in July 2024; exact valuation not disclosed.  
  [uk.linkedin.com](https://uk.linkedin.com/company/flohealth)
- **Key Metric**:
  - Total Funding: $276.4M (9 rounds)  
    [uk.linkedin.com](https://uk.linkedin.com/company/flohealth)
  - Annual Revenue: Not publicly available (private company)
  - Users: 420 million downloads, 10 million monthly active users, 85% would recommend to a friend  
    [flo.health](https://flo.health/about-flo)
- **Notable Investors/Partners**: Not explicitly listed in search results; public partnerships include **Mayo Clinic** (studying period symptoms across 800,000 cycles) and **United Nations Population Fund** (global female health education).  
  [flo.health](https://flo.health/about-flo)
- **Growth Signals**:
  - First European female health unicorn  
    [uk.linkedin.com](https://uk.linkedin.com/company/flohealth)
  - Headcount ~450–550 (YoY growth slightly negative per LinkedIn, but actively hiring 41+ roles across engineering, marketing, product, design)  
    [uk.linkedin.com](https://uk.linkedin.com/company/flohealth) | [Greenhouse](http://job-boards.greenhouse.io/flohealth)
  - Expanding into Virtual Clinics and perimenopause content  
    [Greenhouse](http://job-boards.greenhouse.io/flohealth)
  - Available in 22 languages globally  
    [flo.health](https://flo.health/about-flo)

## Competitive Advantages
- **Medical credibility**: Team of 120+ doctors, scientists, and medical experts review all content; #1 OB-GYN recommended period tracker.  
  [flo.health](https://flo.health/about-flo)
- **AI & machine learning**: Integrated predictive algorithms for period and ovulation accuracy.  
  [flo.health](https://flo.health/about-flo)
- **Privacy-first**: Anonymous Mode allows users to track health without personal identifiers.  
  [uk.linkedin.com](https://uk.linkedin.com/company/flohealth)
- **Large, engaged community**: 420M downloads and strong word-of-mouth (85% would recommend).  
  [flo.health](https://flo.health/about-flo)

## Strategic Focus
- Expand into new health verticals (e.g., perimenopause, virtual clinics) and deepen AI personalization.
- Continue global growth (22 languages, partnerships with UNFPA and Mayo Clinic).
- Strengthen medical credibility through proprietary research and expert review.
- Scale the Pass It On Project to provide free health information to 1 billion women in underserved communities.  
  [flo.health](https://flo.health/about-flo) | [flo.health](https://flo.health/)

## Why Work Here
- **Total rewards**: Employee Share Ownership Plan (ESOP) for all employees, competitive holiday (25 days + public holidays), 30 days fully paid sick leave, 6 months fully paid maternity leave + $5,000 return bonus, 1 month fully paid paternity leave.  
  [flo.health](https://flo.health/careers)
- **Flexible work**: Hybrid model (2 days/week in office); Workation policy (work from anywhere up to 2 months/year).  
  [flo.health](https://flo.health/careers)
- **Growth & learning**: Dedicated Learning & Development budget, personal development plans, career progression from within.  
  [flo.health](https://flo.health/careers)
- **Culture**: “Servant leadership” – managers ask “What can I do for you?”; high bar for talent; mission-driven environment focused on impact.  
  [flo.health](https://flo.health/careers)
- **Locations**: Major hubs in London and Vilnius, with smaller offices in San Francisco and Amsterdam.  
  [flo.health](https://flo.health/careers)

## Sources
1. [flo.health/careers](https://flo.health/careers)
2. [flo.health/about-flo](https://flo.health/about-flo)
3. [Greenhouse job board](http://job-boards.greenhouse.io/flohealth)
4. [flo.health homepage](https://flo.health/)
5. [LinkedIn company page](https://uk.linkedin.com/company/flohealth)

## Other roles at Flo Health

- [Graphic Designer](https://feeny.ai/job/graphic-designer-flo-health-ukraine-6d5mjng882v5) — Ukraine
- [Graphic Designer](https://feeny.ai/job/graphic-designer-flo-health-poland-5b6kj2vnbw0g) — Poland
- [Director, Head of Global PR & Communications](https://feeny.ai/job/director-head-of-global-pr-communications-flo-health-london-hnsp9yzhxv33) — London, United Kingdom
- [Creative Director](https://feeny.ai/job/creative-director-flo-health-london-z3caft3b490d) — London, United Kingdom
- [Freelancer - Creative Producer](https://feeny.ai/job/freelancer-creative-producer-flo-health-ukraine-mc6g41g574mr) — Ukraine
- [Freelancer - Creative Producer](https://feeny.ai/job/freelancer-creative-producer-flo-health-poland-wgwxx2fqme9t) — Poland
- [Senior User Acquisition Manager (Web)](https://feeny.ai/job/senior-user-acquisition-manager-web-flo-health-ukraine-x5gvja8w3086) — Ukraine
- [Senior User Acquisition Manager (Web)](https://feeny.ai/job/senior-user-acquisition-manager-web-flo-health-warsaw-5c5xgx7nsxkh) — Warsaw, Poland
- [Senior User Acquisition Manager (Web)](https://feeny.ai/job/senior-user-acquisition-manager-web-flo-health-vilnius-pt7j11jk54j1) — Vilnius, Lithuania
- [Senior DevEx Engineer](https://feeny.ai/job/senior-devex-engineer-flo-health-vilnius-q2z6yryymrm7) — Vilnius, Lithuania