Senior Security Reliability Engineer – On-Prem & Hybrid Infra

OpenAI; California (MO); On-site; USD 190,000 - 230,000; Full time

Job summary

OpenAI is seeking an experienced Site Reliability Engineer focused on security infrastructure to design, build, and operate reliable, secure, scalable systems underpinning identity, access, endpoints, and shared platform services.

Based at our San Francisco HQ with in-office presence, you will own infrastructure end-to-end, enforce security by default, and raise the reliability bar through automation, IaC, and durable patterns.

Qualifications

• 10+ years of hands-on experience architecting mission-critical infrastructure.
• Expertise in site reliability engineering principles and security-minded design.
• Proven ability to build secure, observable, scalable platforms.
• Strong automation and infrastructure-as-code practice across hybrid environments.

Responsibilities

• Design, build, and operate reliable on-prem, hybrid, and cloud-integrated infrastructure.
• Establish secure-by-default, auditable infrastructure patterns.
• Own lifecycle: provisioning, deployment, upgrades, patching, recovery, and long-term reliability.
• Develop IaC and config management using Terraform, Chef, and Ansible.
• Mature identity and policy enforcement infrastructure with Entra/Azure patterns.
• Build observability, alerting, and incident response mechanisms to improve availability.

Skills

SRE

Security Infra

Observability

Automation

IaC

On-Prem

Tools

Terraform

Chef

Ansible

Azure Entra

Azure

Job description

OpenAI is seeking an experienced Site Reliability Engineer focused on security infrastructure to design, build, and operate reliable, secure, scalable systems underpinning identity, access, endpoints, and shared platform services.

Based at our San Francisco HQ with in-office presence, you will own infrastructure end-to-end, enforce security by default, and raise the reliability bar through automation, IaC, and durable patterns.