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Senior QA Engineer (Subscription Engine)

Vilnius

400M+ downloads. 75M+ monthly users. A decade of building – and we’re still accelerating.

Flo is the world’s #1 health app 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 6M 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

‘Ambitious’, ‘innovative’, ‘highly product-focused’ - those are the words you’d hear if we were asked to describe our Engineering teams. 

They focus on product, platform and the development of internal tools to bring the best experience to all of our customers.

Probably one of the most senior bunches of people in the company - on average, each one of our Engineers has over 7 years of experience!

We are looking for an experienced QA Engineer to join our Subscription Engine team — the driving force behind monetizing the incredible features built across Flo. This team plays a critical role in empowering internal teams with a robust, self-service payments platform. If you're passionate about quality and eager to help shape a bulletproof internal payments engine, we’d love to hear from you.

Your Experience

Must have:

  • 5+ years in software quality assurance
  • Experience with mobile platforms and ecosystems, iOS and Android, is preferred
  • Being proactive in gathering non-functional requirements within the team and other departments
  • Experience as a QA engineer working with backend technologies such as APIs, DBs (including SQL knowledge) and services
  • Excellent understanding of testing methodology in Agile product lifecycle
  • Experience in test automation 
  • Positive thinking, quality orientation, reliability, ability to organize, exceptional attention to details
  • Good English level – both spoken and written

Nice to have:

  • Cross-browser, including mobile browsers and especially Facebook browser
  • Experience in load testing
  • Understanding of A/B experimentation and its implication on testing strategy
  • Higher education in IT or Computer Science

What you'll be doing

You'll be responsible for:

  • Work closely with Product Manager and developers and find corner cases on the early stages of a feature development
  • Help define test methodology, criteria and test cases required to validate critical functionality
  • Identify defects and write clear and reproducible bug reports following team standards for defects
  • Prepare test plans, develop test cases and execute tests with a focus on User Stories coverage
  • Investigate and analyze data using SQL
  • Work in an Agile and fast-paced environment
  • Exchange best QA practices with colleagues

#LI-Hybrid #LI-LM12

Salary Range - gross per month (ranges may vary based on skills and experience)

€4.500 - €7.500 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
  • Flexible office + home working, up to 2 months a year working abroad
  • 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.

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