Senior SRE InfraSec Engineer — Security Infrastructure

MongoDB Inc.; San Francisco (CA); On-site; USD 126,000 - 248,000; Full time

Benefits offered by this job

Equity

Employee stock purchase program

Flexible paid time off

Parental leave

401(k)

Mental health counseling

Transgender-inclusive health insurance

Health benefits offerings

Job summary

MongoDB is seeking an Infrastructure Security Engineer to Harden hosts and container workloads across multi-cloud environments. You will implement RBAC, network policies, and admission controls, and you will write code and use Terraform to deploy security controls at scale.

The role emphasizes building CSPM capabilities, workload identity, vulnerability management, and real-time monitoring for Atlas-scale security needs. A strong background in Linux and Kubernetes is required.

Qualifications

• 5+ years in SRE, Infrastructure Engineering, or Cloud Security Engineering.
• Strong coding skills in Go, 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 provisioning.
• Demonstrated experience owning infrastructure in Linux, Kubernetes, and at least one major cloud provider (AWS, GCP, or Azure).

Responsibilities

• Harden hosts and containerized workloads using Linux security mechanisms and eBPF tooling.
• Secure containerized infrastructure across multi-cloud environments via RBAC, network policies, admission controls, and runtime threat detection.
• Build and manage automated CSPM, 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 to detect anomalies at Atlas scale.
• Lead initiatives across full lifecycle from threat modeling to production reliability.

Skills

SRE/Infra Eng

Go

Python

C/C++/Rust

Cloud security engineering

Tools

Terraform

CloudFormation

Ansible

Kubernetes

Job description

MongoDB is seeking an Infrastructure Security Engineer to Harden hosts and container workloads across multi-cloud environments. You will implement RBAC, network policies, and admission controls, and you will write code and use Terraform to deploy security controls at scale.

The role emphasizes building CSPM capabilities, workload identity, vulnerability management, and real-time monitoring for Atlas-scale security needs. A strong background in Linux and Kubernetes is required.