Senior Backend Engineer

About the role

Build systems that power the world’s #1 health app for women, handling massive real-time demand while ensuring speed, availability and security. Join a senior engineering team shaping AI-powered, privacy-first digital health solutions.

Key responsibilities

• Design and maintain distributed backend systems that deliver data-driven health insights at scale.
• Develop privacy-first features such as Anonymous Mode and build tooling that accelerates product development.

Required profile

• 7+ years of experience building distributed backend systems.
• Strong understanding of performance, reliability and security trade-offs.
• Product-mindset with focus on end-user impact.

Required skills

• Java, Scala, Python programming.
• DevOps practices and experience with public cloud platforms (AWS, GCP).
• SQL and NoSQL database design.
• API design and implementation.
• Stream processing.

What we offer

• Competitive salary (€6,500–€10,000 gross per month) and performance incentive scheme.
• Paid holiday, sick leave, female health leave and enhanced parental leave.
• Hybrid work model with three days per week in the office.
• 5-week fully paid sabbatical after five years.
• Flo Premium access and additional health, pension and wellbeing perks.