Machine Learning Jobs in Vilnius.
All active Machine Learning roles based in Vilnius.
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Senior / Lead iOS Engineer
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 Android Engineer
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
Job Overview
Wargaming is looking for a proactive, excited and determined Senior Game Data Analyst to strengthen the World of Tanks product analytics team.
We collect all kinds of information about the player behavior and the events in the ‘WoT universe’: from economic, financial and detailed combat data to the precise coordinates of each shot and tank movement, interface telemetry and many others. All of them are routed to a singular database and are available for analysis 24/7.
You will be working with the WoT Product Team responsible for decision-making process, with the Data Warehouse team responsible for data storage, reports system and our infrastructure, as well as 60 analytics all over the world united under Wargaming Global Analyst Network.
What will you do?
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Helping deliver important analytical insights to managers and other product teams necessary for decision-making
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Use quantitative analysis to understand how the game is played and identify impact and growth opportunities
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Participating in analytical maintenance for features, game events and modes throughout all development and release stages:
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Pre-Production Analytics: modeling likely outcomes and risks from implementing new features, game modes and events into the game; predict the future events, product KPIs and metrics; providing analysis of their full development cycle (from concept to release)
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Production Analytics: developing and preparing analytical reports, metrics and methodologies for evaluating features, game modes and events in operation; looking for anomalies and insights that help increase effectiveness of the product and its parts
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Operation Analytics: creating and supporting analytical tools and interfaces (dashboards) for rapid updates on the status of the product and its subsystems delivered to the management and the responsible teams
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Gather and formulate requirements, conduct analytical research from producers, PMs, UX/UI and game designers, developers, QA and artists
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Presenting the research results and filling the product analytics knowledge base to share with other teams
What are we looking for?
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5+ years experience on a similar position
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Understanding the principles of formalizing business tasks in research plans, as well as experience writing analytical reports and presenting their results
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Advanced SQL knowledge
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Experience with at least one data visualization solution (Tableau / Qlik / Microsoft Power BI, etc)
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Experience with Python/R and popular libraries for data processing and analysis
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Great communication skills, both written and spoken, especially for non-technical audience
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Written and spoken English (B2 and higher)
What additional skills will help you stand out?
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Being prepared to learn, take in and systemize vast amounts of data within a short time
- Experience working with Cloudera Impala / Hive, Oracle SQL, Snowflake
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Knowledge and practical application of machine learning algorithms
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Rich gaming experience in different games and over 1000 World of Tanks battles
The salary range for this position is 4000-6500 € (gross) per month.
Note that this salary range is valid for Lithuania, for other locations it might be different.
Work Mode
- Hybrid (2-3 days of work from the office)
Benefits
Benefits and perks are tailored to the local market and culture. Our benefits in Vilnius include:
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Additional paid time off
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Sick Leave Compensation
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Pregnancy and Childbirth Leave Benefit
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Career development and education opportunities within the company
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Meal Allowance
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Premium Private Health Care
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Mental well-being program (iFeel)
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Perks discounts platform (over 450 exclusive discounts)
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Personal Gaming Account
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Coffee, fruits, and snacks in the office
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Company events
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Seniority Awards
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Referral program - You can recommend the best talents to the company and receive a reward
Please submit your CV in English to ensure smooth processing and review.
About Wargaming
Wargaming is an award-winning online game developer and publisher headquartered in Nicosia, Cyprus. Operating since 1998, Wargaming has become one of the leaders in the gaming industry with 15 offices worldwide, including studios in Chicago, Prague, Shanghai, Tokyo, and Vilnius. Our diverse and multicultural team works together to deliver a top-class experience to millions of players who enjoy Wargaming's titles across all major gaming platforms. Our flagship products include free-to-play hits World of Tanks, World of Warships and World of Tanks Blitz.
Please see Wargaming Candidate Privacy Policy for details on how Wargaming uses your personal data.
Ready to apply?
Apply to Wargaming