Senior Security Engineer, Security Incident Response Team

Senior Security Engineer, Security Incident Response Team

GitLab is an open-core software company that develops an 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. 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 Senior Security Engineer on GitLab's Security Incident Response Team (SIRT), you will be on the frontline of protecting both GitLab.com and GitLab the company from security threats.

Role

This role follows a compressed four-day workweek, with standard full-time hours spread across four extended shifts. To ensure 24/7/365 security coverage, team members work one of two schedules: • Sunday through Wednesday • Wednesday through Saturday

Your primary focus will be detecting and responding to security incidents during your scheduled shifts. You'll work extensively with our incident response automation tools to investigate, analyze, and resolve security events. You'll also have opportunities to contribute to our security tooling and automation, helping to improve our detection and response capabilities.

In this role, you'll develop expertise using our security infrastructure to monitor for threats, analyze potential incidents, and coordinate response efforts across teams. This position is ideal for someone who wants to grow their incident response skills while working within GitLab's established security framework. You'll learn to think both tactically and strategically about security, while getting hands-on experience handling real-world incidents.

Successful Security Engineers thrive in high-pressure environments, remaining calm while following prepared runbooks and thinking critically about security challenges. In this role, you will learn to think like both an attacker and defender, developing proactive and preventative security measures to keep GitLab and its users' data safe in our ever-changing threat landscape. Through hands-on experience and mentorship, you'll develop the skills needed to anticipate security risks, respond effectively to incidents, and contribute to GitLab's robust security posture.

Find out more about the Security Operations team and responsibilities here: • Incident Response • Trust and Safety • Red Team • Threat-Intelligence • Signals-Engineering

What You’ll Do • Lead security incident response in our 24/7 global rotation, managing incidents from detection through containment and recovery • Create and maintain comprehensive incident response documentation, including runbooks and standard procedures • Conduct post-incident analysis through RCA and lessons-learned reviews to strengthen our incident response program • Design and implement automated security processes to improve operational efficiency and reduce manual intervention • Drive continuous improvement by identifying security gaps and implementing advanced detection and response capabilities • Collaborate across GitLab teams to develop new security capabilities and deliver technical projects that enhance our infrastructure

What You’ll Bring • Demonstrated ability to learn and lead incident response processes independently • Experience with SIEM/security logging tools • Experience with cloud platforms (GCP and/or AWS) • Python programming skills or strong willingness to learn