Feature flagging, A/B testing, or experimentation platform experience
Experience in the MedTech or HealthTech domain
Experience at a Tier-1 product company or related experience working within a product organisation
What the job involves
Benefits
Participation in Flo’s success: We firmly believe every employee contributes to the company’s growth and its future success. All employees are eligible to participate in Flo’s Employee Share Ownership Plan (ESOP) and be awarded equity to participate in the long-term value creation of the business
Family benefits: We know having a baby can be a big transition for the family, so we're proud to offer 1 month fully paid paternity leave to be there and bond with your baby and 6 months of fully paid maternity leave, with a $5000 bonus on your return to work to help you settle into this new chapter of your life. (Depending on your country there may be additional options for parental time off and shared parental leave beyond the early days)
Our popular Workation policy also allows you to work from anywhere for up to 2 months a year
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We are looking for an Backend Engineer to own the User Profile service—a high-scale system (20k RPS, <15ms latency) that powers experimentation and AI for 80M+ users
In this role, you will drive the development of User Profile 2.0, bridging the gap between raw user data and advanced ML feature stores
You will operate in a hybrid model: building core capabilities for AI/ML data representations while governing an inner-source ecosystem that allows other teams to contribute safely
Develop new features for the User Profile service – the central platform that powers personalization, experimentation, and AI features including Flo Conversational AI
Build User Profile 2.0 capabilities including historical data arrays, AI-ready attribute representations, and integration with ML feature stores
Design and implement data pipelines that deliver user attributes to AI/ML systems for personalized content generation and predictive models
Enable inner-source contributions: establish contribution guidelines, quality gates, and architectural standards for product teams
Review and approve pull requests from contributing teams, providing mentorship and ensuring code quality
Maintain architectural oversight of core components while enabling safe, autonomous contributions from product teams
Build and maintain attribute governance frameworks, cataloguing systems, and documentation standards
Ensure compliance with healthcare regulations (HIPAA, SOC 2, GDPR) and implement privacy-first design patterns
Participate in on-call rotation and drive incident response for this critical platform service
Work in a cross-functional setup alongside other engineering teams (Backend, ML, QA), product, and analytics teams
Resources you need to thrive: At Flo you will have access to internal and external learning resources and tools to challenge your knowledge and push yourself further every day. We support career progression from within through personal development plans and dedicated Learning & Development budget to help you thrive
Holiday and sick leave: It’s important to take time off to recharge and spend time with family and friends. We offer 25 days (28 for vice presidents and above) paid holiday in addition to the local public holidays and 30 days fully paid sick leave per year
Flexible workplace: We want to provide a setup that gives our employees the flexibility they need, while also getting important face to face time with the team. With this in mind, we encourage teams to spend 2 days/week in the office.
