Senior/Lead Backend Engineer

The role

You will build distributed, secure, and scalable systems that power a health app. This includes developing data-driven health insights, privacy-first features, and tooling to improve team velocity.

What you will do

• Build distributed systems that stay fast, available and scalable
• Develop data-driven health insights
• Build privacy-first features
• Create tooling and platforms to help teams move faster
• Design APIs
• Write clean, documented, version-controlled code

Required qualifications

• 7+ years’ experience building distributed backend systems
• Knowledge of making systems fast, reliable and secure
• Fluent in Java, Scala, Python or similar
• Knowledge of DevOps
• Knowledge of databases (SQL and NoSQL)
• Ability to design APIs
• Strong handle on writing clean, documented, version-controlled code
• Take ownership and show initiative
• Product-minded

Nice to have

• Stream processing
• Public cloud infrastructure (AWS, GCP etc.)

Benefits

• 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
• 5-week fully paid sabbatical at 5-year Floversary
• Flo Premium for friends & family
• Health, pension and wellbeing perks

About the company

Flo is the world’s #1 health & fitness app with 500M+ downloads and 80M+ monthly users. It is a mission-led company building AI-powered, privacy-first digital health tools.