Principal Infrastructure Engineer
Flo Health23 hours ago
London, United KingdomStaff+
Responsibilities
- Architect and evolve the EKS estate, including cluster lifecycle, upgrades, networking, autoscaling, workload isolation, Helm, and Terraform.
- Design operating patterns for PostgreSQL, DynamoDB, and Kafka, including provisioning, access, backups, failover, and capacity.
- Build self-service tooling and Terraform modules that provide product teams autonomy while maintaining stability and security.
- Lead resilience initiatives, business continuity planning, disaster recovery testing, and a sustainable on-call rotation.
- Support privacy-sensitive infrastructure and maintain SOC 2, ISO 27001, and ISO 27701 certification requirements.
- Improve observability so metrics, logs, and traces identify issues before users are affected.
- Set technical direction across teams and communicate infrastructure practices through a documentation-first approach.
Requirements
- Many years of experience in infrastructure, platform, SRE, or DevOps roles operating high-traffic distributed systems in production.
- Experience operating at Principal or Staff scope, setting direction across teams while delivering hands-on work.
- Production Kubernetes experience, ideally with EKS, including cluster behavior, upgrades, networking, and troubleshooting.
- Understanding of PostgreSQL, DynamoDB, and Kafka behavior under load and during failures.
- Strong AWS knowledge and fluency with Terraform.
- Coding experience in Go or Python is a plus.
- Experience hardening infrastructure in high-compliance or security-sensitive environments such as HIPAA, SOC 2, or PCI is a bonus.
- Experience with AWS managed data services including RDS, Aurora, MSK, and DynamoDB, as well as migrations and major version upgrades, is a bonus.
- Experience scaling consumer platforms with millions of concurrent users is a bonus.
- AWS Certified Solutions Architect Professional, CKA, or CKS certification is a bonus.
Benefits
- Competitive salary with annual reviews and participation opportunity 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.
- Professional growth through impactful work and learning support.
- Hybrid work with 3 days per week in the office.
- A 5-week fully paid sabbatical after the 5-year Floversary.
- Flo Premium for friends and family, plus health, pension, and wellbeing perks.
Tech Stack
Categories
About Flo Health
Flo Health builds a mobile app for menstrual cycle, ovulation, fertility, and pregnancy tracking, offering AI-powered insights and a private community on iOS and Android. The company operates a freemium model with optional premium subscriptions and health content. Founded in 2015 and headquartered in London, this privately held firm reports tens of millions of monthly active users, and its privacy-focused Anonymous Mode was named one of Time’s Best Inventions of 2023.