Staff/Lead Site Reliability Engineer, HeartFlow

• 8+ years of progressive experience in Site Reliability Engineering, Production Engineering, or a closely related role
• Deep expertise with:
• AWS
• Kubernetes, Helm
• Observability stack (Prometheus, Grafana, Mimir, Loki, Pixie, Tempo)
• CI/CD systems (ArgoCD, Harness)
• Fluency in at least one major scripting/programming language for automation and tooling (e.g., Python, Go, or Java)
• Hands-on engineering mindset — able to instrument services directly, not just configure tooling
• Track record of building or significantly improving incident detection and response systems
• Have deep technical familiarity with Kubernetes ecosystems, containerization technologies, and modern IaC tooling (e.g., Terraform, Crossplane, or Operators) so you can effectively guide the team's technical decisions
• Exceptional communication skills, capable of explaining complex technical issues to both technical and non-technical audiences

Desirable

• We're looking for an experienced Site Reliability Engineer (SRE) to join our cloud-native infrastructure team
• You will work closely with our Platform engineers and development teams to ensure our critical systems are highly available, scalable, observable, and performant
• If you thrive on eliminating toil, automating complex operations, and defining the standards for production excellence, we want to talk to you
• As our Staff SRE, you'll be the primary expert responsible for our entire compute ecosystem. Your key responsibilities will include:
• As a Staff SRE, you'll operate at the highest level of technical expertise and influence. You won't just solve problems; you'll prevent them at a fundamental level across organizational boundaries
• Lead the design, implementation, and operation of reliable, scalable cloud infrastructure
• Define and begin rollout of SLI/SLO standards across microservices
• Develop self-service instrumentation tooling enabling engineering teams to own observability
• Establish observability and monitoring using OSS toolchain
• Serve as a technical escalation point for critical incidents, perform deep-dive root cause analyses (RCAs), and implement robust corrective measures to prevent recurrence
• Enhance our monitoring, logging, and tracing systems to provide comprehensive visibility into system health
• Set the technical direction and best practices for the entire SRE and engineering organization. Mentor mid-level and senior engineers on design patterns, operational rigor, and reliability principles
• We're looking for a leader and a deep technical expert with a proven track record of solving the hardest scaling and reliability challenges