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# Staff Site Reliability Engineer, Infrastructure Security

- **Company:** MongoDB
- **Location:** Chicago, IL, United States
- **Experience:** Expert
- **Salary:** $151,000 - $297,000
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Amazon Web Services, Microsoft Azure, C++ (Programming Language), Cloud Computing Security, Computer Networks, Linux, Distributed Systems, Identity and Access Management, Python (Programming Language), Linux Security Modules, Role-Based Access Control, Reliability Engineering, Ansible, Software Vulnerability Management, Data Logging, Google Cloud, Cloud Platform System, Multi-Cloud, Cloudformation, Containerization, Selinux, Kubernetes, Production Code, Terraform, Golang
- **Published:** November 7, 2026
- **Apply:** https://dejobs.org/x/x/B1632DC546D94FDA920C34738BD43B6F/job/

## About the Role

* 10+ years in SRE, Infrastructure Engineering, or Cloud Security Engineering
 * A track record of operating at Staff or Principal scope: defining technical direction, resolving cross-team ambiguity, and personally 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 using Terraform, CloudFormation, or Ansible for automated infrastructure provisioning
 * Demonstrated experience owning infrastructure in Linux, Kubernetes, and at least one major cloud provider (AWS, GCP, or Azure)

Preferred Qualifications:

 * 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)

## Description

* 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