Staff Site Reliability Engineer, InfraSec

What you'll be doing

  • Harden hosts and containerized workloads using Linux security mechanisms (AppArmor, SELinux, seccomp, cgroups) and eBPF-based tooling (Cilium, Tetragon)
  • Secure containerized infrastructure across multi-cloud environments via RBAC, network policies, admission controls (Gatekeeper), and runtime threat detection
  • Build and manage automated services for Cloud Security Posture Management (CSPM), workload identity, vulnerability management, and access controls across AWS, Azure, and GCP
  • Write production-quality code and leverage Infrastructure-as-Code (Terraform) to version, test, and deploy security controls as code
  • Build real-time security monitoring, logging, and alerting systems to detect anomalies and track security posture at Atlas scale
  • Lead initiatives across their full lifecycle; from threat modeling and architectural design to implementation, rollout, and long-term production reliability

Requirements

  • 10+ years in SRE, Infrastructure Engineering, or Cloud Security Engineering
  • Experience operating at Staff or Principal scope: defining technical direction, resolving cross-team ambiguity, and championing initiatives from conception to delivery
  • Strong coding skills in Go (Golang), Python, C, C++, or Rust
  • Proven track record of building and operating large-scale distributed systems or cloud platform infrastructure
  • Hands-on experience with Terraform, CloudFormation, or Ansible for automated infrastructure provisioning
  • Experience owning infrastructure in Linux, Kubernetes, and at least one major cloud provider (AWS, GCP, or Azure)

Nice to haves

  • Practical experience with eBPF-based security tooling (Cilium, Falco, Tetragon)
  • Direct ownership of Cloud Security and Workload Identity platforms
  • Multi-cloud expertise spanning AWS, Azure, and GCP
  • Production exposure to low-level Linux security mechanisms (seccomp, AppArmor, SELinux, cgroups)
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