Frontend Engineer

500M+ downloads. 80M+ monthly users. A decade of building – and we’re still accelerating.

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.

We’re looking for a Senior Frontend Engineer to help us build the next generation of Flo’s platform and user experiences.

7+ years of experience building, shipping, and maintaining modern web applications.
Expert-level knowledge of HTML, CSS, and JavaScript (ES6+).
Deep experience with React and modern frontend tooling.
Solid grasp of object-oriented design patterns and the ability to write efficient, well-structured algorithms
You must use AI coding agents as your default way of working — writing code manually is the exception, not the rule.
Proven ability to create adaptive, responsive, and accessible user interfaces.
A product mindset and strong collaboration skills — you care about how your work impacts the user.
Familiarity with Next.js, Contentful, or similar frameworks and CMS solutions.
Experience with A/B testing and experimentation frameworks.
Understanding of analytics and BI integrations.
Salary Range - gross per month (ranges may vary based on skills and experience)
€5.900—€8.300 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