Senior Software Engineer (SRE), Infrastructure Security

MongoDB Inc.; Austin, New York (TX, NY); Remote; USD 180,000 - 250,000; Full time

Job summary

MongoDB Inc. is seeking an experienced Infrastructure Security Engineer to join the InfraSec team. You will harden Linux hosts and container workloads, implement multi-cloud security controls, and build automated CSPM and identity services across AWS, Azure, and GCP.

Responsibilities include writing production-grade code, applying Terraform and IaC practices, and leading security projects from design to production reliability, with a focus on Atlas security at scale.

Qualifications

• 5+ years in SRE, Infrastructure Engineering, or Cloud Security Engineering.
• Strong coding skills in Go, Python, C, C++, or Rust.
• Proven track record building/operating large-scale distributed systems.
• Hands-on with Terraform, CloudFormation, or Ansible for automation.
• Ownership of infrastructure in Linux, Kubernetes, and major cloud providers (AWS, GCP, Azure).

Responsibilities

• Harden hosts and container workloads with Linux security mechanisms and eBPF tools.
• Secure containerized infra across multi-clouds with RBAC, network policies, and runtime detection.
• Build and manage CSPM, workload identity, vulnerability management, and access controls across AWS/Azure/GCP.
• Write production code and use Terraform to version, test, and deploy security controls as code.
• Create real-time security monitoring, logging, and alerting to track Atlas-scale posture.
• Lead initiatives end-to-end from threat modeling to rollout and reliable production.

Skills

Go

Python

C

C++

Rust

Tools

Terraform

CloudFormation

Ansible

Job description

Who We Are

At the company, we are building the future of data platforms with the company Atlas; our fully managed, multi-cloud database service. The Infrastructure Security (InfraSec) team sits within Site Reliability Engineering (SRE) in the CTO organization. We are an engineering team dedicated to building the security infrastructure, primitives, and reusable controls that protect the company Atlas across AWS, Azure, and Google Cloud (GCP).

InfraSec operates on a preventative, enabling model: rather than acting as a manual approval gatekeeper or compliance auditor, we develop automated guardrails and platform capabilities. We integrate security directly into the platform runtime, CI/CD, and Infrastructure-as-Code (IaC) workflows so engineering teams can operate securely at scale without friction.

This role can be based out of our New York City office or remotely in the eastern or central timezone.

What You’ll Do

• 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

What We’re Looking ForMinimum Qualifications:

• 5+ years in SRE, Infrastructure Engineering, or Cloud Security Engineering

• 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)

About the company

the company is built for change, empowering our customers and our people to innovate at the speed of the market. We have redefined the database for the AI era, enabling innovators to create, transform, and disrupt industries with software. the company’s unified database platform—the most widely available, globally distributed database on the market—helps organizations modernize legacy workloads, embrace innovation, and unleash AI. Our cloud-native platform, the company Atlas, is the only globally distributed, multi-cloud database and is available across AWS, Google Cloud, and Microsoft Azure.

With offices worldwide and nearly 60,000 customers—including 75% of the Fortune 100 and AI-native startups—relying on the company for their most important applications, we’re powering the next era of software.

Our compass at the company is our Leadership Commitment, guiding how and why we make decisions, show up for each other, and win. It’s what makes us the company.

To drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups, to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys. Learn more about what it’s like to work at the company, and help us make an impact on the world!

the company is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter.

the company, Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type and makes all hiring decisions without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexua