Senior Site Reliability Engineer, InfraSec

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Senior Site Reliability Engineer, InfraSec in Others new

MongoDB
Full time
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Others
11/06/2026
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Dublin, Ireland

Responsibilities

Harden Linux hosts and containerized workloads using AppArmor, SELinux, seccomp, cgroups, and eBPF-based tooling.
Secure containerized multi-cloud infrastructure through RBAC, network policies, admission controls, and runtime threat detection.
Build and manage automated services for cloud security posture management, workload identity, vulnerability management, and access controls across AWS, Azure, and GCP.
Write production-quality code and use Terraform to version, test, and deploy security controls as code.
Build real-time security monitoring, logging, and alerting systems for anomaly detection and security posture tracking at Atlas scale.
Lead initiatives through threat modeling, architectural design, implementation, rollout, and long-term production reliability.

Requirements

At least 5 years of experience in SRE, infrastructure engineering, or cloud security engineering.
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 automated infrastructure provisioning.
Experience owning infrastructure in Linux, Kubernetes, and at least one major cloud provider: AWS, GCP, or Azure.
Preferred experience with eBPF-based security tooling such as Cilium, Falco, or Tetragon.
Preferred direct ownership of cloud security and workload identity platforms.
Preferred multi-cloud expertise across AWS, Azure, and GCP.
Preferred production experience with seccomp, AppArmor, SELinux, and cgroups.

Benefits

Hybrid working model for candidates based in Dublin.
Employee affinity groups, fertility assistance, and generous parental leave policy.
MongoDB provides necessary disability accommodations during the application and interview process.

MongoDB

MongoDB builds a powerful database platform designed for the AI era, allowing innovators to drive change across industries. Its technology empowers customers to innovate and adapt swiftly to market demands, enabling the creation and transformation of software solutions.

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