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
The Senior Product Designer plays a pivotal role in shaping complex, system-level design solutions that elevate user experiences across Flo’s app. Working within the User Centric stream on a 0→1 product initiative, this role combines deep expertise in interaction design, systemic thinking, and visual craft with the ability to architect scalable frameworks and influence product direction. As a senior individual contributor, the Senior Product Designer tackles the most challenging design problems, sets the quality bar for the team, and ensures designs are accessible, inclusive, and emotionally resonant. They collaborate across product, engineering, research, and content disciplines, raising craft excellence and contributing significantly to Flo’s overarching design vision.
Your Experience
Must have:
- 10+ years of professional experience designing mobile applications.
- Portfolio demonstrating systemic design, advanced interaction design, motion and micro-interaction expertise, and measurable product impact.
- Experience creating scalable frameworks, contribution to design systems, and interaction models.
- Proficiency in Figma and advanced prototyping tools (e.g., Protopie).
- Strong communication and presentation skills; ability to distill complex ideas into clear narratives and influence stakeholders.
- Deeply collaborative, with experience mentoring and raising the craft bar for design teams.
- Commitment to accessibility, inclusion, and ethical design practices
Nice to have:
- Experience in AI/LLM-powered design exploration.
- Experience working in health tech or regulated industries
What you'll be doing
You'll be responsible for:
- Lead complex design projects (0 → 1), creating scalable frameworks and systems that support growth and innovation.
- Translate ambiguous product and data challenges into clear, compelling, user-centred experiences.
- Design features, e2e flows, and experiments that align with user needs and business goals (e.g., engagement, retention, etc.).
- Produce prototypes and high-fidelity mock-ups using Figma or other prototyping tools.
- Collaborate closely with product managers, engineers, researchers, and content designers to deliver cohesive solutions.
- Mentor and support other designers through feedback, craft guidance, and knowledge sharing.
- Advocate for emotionally intelligent, ethical design and ensure accessibility standards are upheld at every stage.
You'll be measured on
- Deliver complex design initiatives that significantly improve user engagement, retention, and user satisfaction outcomes.
- Raise team capability and craft standards by mentoring peers and contributing to a culture of design excellence.
#LI-VT2
#LI-Hybrid
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.
Top Skills
What We Do
Flo is the essential female health partner. We are building a better future for female health by helping women harness the power of their body signals. --------------- Flo in numbers: --------------- #1 period tracker in the USA by active audience #1 most downloaded female health app worldwide 47 million monthly active users 240 million installs 28M women got pregnant while using Flo (the number indicates users who logged pregnancy in app during 2015-2022) Flo prioritizes safety and keeps a sharp focus on being the most trusted digital source for women's health information. Flo intensively uses Data Science and AI to deliver the most personalized content and services available. Flo is currently available in 22 languages on iOS and Android. 55% of users are located in the US and Europe. We are committed to putting privacy of our users first. Our users trust our technology to keep their sensitive information private and we are responsible for providing a safe and secure platform for them to use. We regularly carry out privacy assessments to monitor risks including data protection impact assessments and third-party risk assessments. In March 2022 Flo completed an external, independent privacy audit which confirmed there are no gaps or weaknesses in our privacy practices.
