Senior/Lead Android Engineer

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Requirements

  • 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
  • (Desirable) Knowledge of Kotlin programming language, Clean Architecture and reactive programming
  • (Desirable) An eye for UX and interaction design – you care about how things feel, not just how they work
  • (Desirable) Hands-on experience with mobile CI/CD tooling, including build, test and release automation
  • (Desirable) Experience integrating with analytics and BI systems, including A/B testing frameworks
  • (Desirable) Experience with alternative Android markets
  • (Desirable) Experience optimising data usage over mobile networks and building offline-first applications

What the job involves

  • 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
  • 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

#J-18808-Ljbffr”, “datePosted”: “2026-05-20”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Deepstreamtech”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__436989712__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=33” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “London” } } }
Company: Deepstreamtech
Apply for the Senior/Lead Android Engineer
Location: London
Job Description:

Requirements

  • 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
  • (Desirable) Knowledge of Kotlin programming language, Clean Architecture and reactive programming
  • (Desirable) An eye for UX and interaction design – you care about how things feel, not just how they work
  • (Desirable) Hands-on experience with mobile CI/CD tooling, including build, test and release automation
  • (Desirable) Experience integrating with analytics and BI systems, including A/B testing frameworks
  • (Desirable) Experience with alternative Android markets
  • (Desirable) Experience optimising data usage over mobile networks and building offline-first applications

What the job involves

  • 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
  • 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

#J-18808-Ljbffr…

Posted: May 20th, 2026