Senior Infrastructure Security Engineer

About GitLab

GitLab is an open-core software company that develops the most comprehensive AI-powered DevSecOps Platform, used by more than 100,000 organizations. Our mission is to enable everyone to contribute to and co-create the software that powers our world. When everyone can contribute, consumers become contributors, significantly accelerating human progress. Our platform unites teams and organizations, breaking down barriers and redefining what's possible in software development. Thanks to products like Duo Enterprise and Duo Agent Platform, customers get AI benefits at every stage of the SDLC.

The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software.

An Overview Of This Role

As a member of the Infrastructure Security Team within the Product Security Department, you will work with teams across GitLab to ensure that the components that comprise our public cloud infrastructure are built from the beginning with the resiliency and security expectations that our customers rely on to power their DevSecOps goals.

As a Senior Infrastructure Security Engineer, you will lead cross-team infrastructure security initiatives that strengthen GitLab's SaaS Platforms (e.g., GitLab Dedicated, Cells) and Self-Managed offerings. You'll design and own the implementation of security solutions while collaborating with various stakeholders across GitLab. Your technical leadership and hands-on execution will drive pragmatic security capabilities that empower critical software factories globally to operate securely at scale.

What You’ll Do

• Lead cross-team infrastructure security initiatives from design through delivery, owning technical outcomes and stakeholder communication.
• Design and implement security solutions for cloud infrastructure, container platforms, and orchestration systems.
• Drive security reviews for infrastructure changes, providing guidance and identifying risks before they reach production.
• Develop secure patterns and reference implementations that enable engineering teams to deliver secure infrastructure quickly.
• Identify systemic security gaps in cloud, Kubernetes, and infrastructure configurations, then lead remediation efforts across affected systems.
• Partner with SRE, Infrastructure, and Engineering teams to integrate security into platform services and deployment pipelines.
• Mentor and partner with engineers supporting their professional development.
• Contribute to the team's technical roadmap, identifying high-impact security improvements aligned with business objectives.
• Fulfill the Product Security Division Mission of securing GitLab Infrastructure with our own product (“dogfooding”).

What You’ll Bring

• Strong experience securing cloud infrastructure at scale (AWS/GCP/Azure), including IAM, networking, compute, and storage services.
• Proficiency in multiple programming languages (Go, Python, Ruby) with ability to build production-quality security tooling.
• Deep knowledge of container security, Kubernetes hardening, and orchestration platform security best practices.
• Extensive experience with Infrastructure-as-Code security (Terraform, Ansible, CloudFormation) including policy-as-code and automated compliance.
• Experience with or strong interest in leveraging AI to automate processes increasing efficiency.
• Experience leading technical initiatives across multiple teams with demonstrated ability to drive consensus and deliver results.
• Track record of identifying security risks in complex systems and implementing effective mitigations.
• Strong written and verbal communication skills, able to explain security trade-offs to both technical and non-technical audiences.
• Bonus: Experience in high-reliability domains (e.g., finance, healthcare, government, telecom).
• Bonus: Familiarity with regulatory and compliance frameworks (e.g., PCI-DSS, FedRAMP, ISO27001, SOC II).
• Share our values, and work in accordance with those values.

How GitLab Will Support You

• Benefits to support your health, finances, and well-being.
• Flexible Paid Time Off.
• Team Member Resource Groups.
• Equity Compensation & Employee Stock Purchase Plan.
• Growth and Development Fund.
• Parental leave.
• Home office support.

Key skills/competency

• Cloud Infrastructure Security
• Kubernetes Hardening
• Infrastructure-as-Code (IaC)
• AWS/GCP/Azure Security
• DevSecOps Platform
• IAM
• Network Security
• Container Security
• Go/Python/Ruby Programming
• Policy-as-Code