Jobs / MongoDB

Staff Site Reliability Engineer, InfraSec

MongoDB · Dublin, D, Ireland
Dublin, D, IrelandExp: 10+ yrsHybrid
Remuneration
Not specified
Location
Dublin, D, Ireland
Visa sponsorship
Not specified

Job summary

This role builds automated security guardrails and platform capabilities that integrate security into runtime environments, CI/CD, and Infrastructure-as-Code workflows. It focuses on hardening Linux and containerized workloads, securing Kubernetes across AWS, Azure, and GCP, and developing cloud security, workload identity, monitoring, and access-control services. The role leads initiatives from threat modeling and architecture through implementation, rollout, and reliable production operation.

Qualifications

  • At least 10 years of experience in SRE, infrastructure engineering, or cloud security engineering.
  • Experience operating at Staff or Principal scope, defining technical direction, resolving cross-team ambiguity, and delivering initiatives.
  • Strong coding skills in Go, Python, C, C++, or Rust.
  • Experience building and operating large-scale distributed systems or cloud platform infrastructure.
  • Hands-on experience with Terraform, CloudFormation, or Ansible for infrastructure provisioning.
  • Experience owning Linux and Kubernetes infrastructure on at least one major cloud provider.
  • Preferred: practical experience with eBPF-based security tools such as Cilium, Falco, or Tetragon.
  • Preferred: ownership of cloud security and workload identity platforms.
  • Preferred: multi-cloud experience across AWS, Azure, and GCP.
  • Preferred: production experience with seccomp, AppArmor, SELinux, or cgroups.

Responsibilities

  • Harden Linux hosts and containerized workloads using AppArmor, SELinux, seccomp, cgroups, and eBPF-based tools.
  • Secure multi-cloud container infrastructure with RBAC, network policies, admission controls, and runtime threat detection.
  • Build and manage CSPM, workload identity, vulnerability management, and access-control services across AWS, Azure, and GCP.
  • Write production-quality code and use Terraform to version, test, and deploy security controls.
  • Build real-time security monitoring, logging, and alerting systems to detect anomalies and track security posture.
  • Lead initiatives from threat modeling and architectural design through implementation, rollout, and production reliability.

Skills

AnsibleAWSAzureCiliumCloudFormationC++FalcoGatekeeperGCPGoKubernetesLinuxMongoDBPythonRustTerraform

Languages

GoPythonCC++Rust

Industry

Cloud computingCybersecurity

Relocation

No