Senior Security Engineer, Security Incident Response Team (SIRT)

Details

GitLab is hiring a Senior Security Engineer for the Security Incident Response Team (SIRT) to defend GitLab.com and the broader GitLab environment against evolving security threats. This role supports the FedRAMP environment and requires U.S. citizenship and residency within the United States. The team operates in a 24/7 global, follow-the-sun model; this role will own incidents end-to-end and operate during U.S. business hours. A strong emphasis is placed on DFIR expertise, automation, and AI-driven approaches to improve detection, investigation speed, and response times.

Responsibilities

• Lead and coordinate end-to-end incident response for high-severity security events within a 24/7 global on-call model (this role operates during U.S. business hours).
• Prepare clear executive communications to keep stakeholders informed during incidents.
• Investigate complex security incidents across cloud environments using Digital Forensics and Incident Response (DFIR) methodologies.
• Partner with Signals Engineering to design and implement detection capabilities including SIEM use cases, alerting strategies, and telemetry pipelines.
• Build and enhance automation and AI-assisted workflows to improve triage, investigation speed, and response consistency.
• Partner with Threat Intelligence to contextualize threats and improve detection coverage.
• Conduct root cause analysis (RCA) and lead post-incident reviews to drive continuous improvement and risk reduction.
• Develop and maintain runbooks, playbooks, and operational documentation.
• Collaborate cross-functionally (Engineering, Infrastructure, Legal, Product, Communications, etc.) during incidents and lead proactive initiatives such as tabletops.
• Mentor other engineers and help elevate the team’s overall incident response maturity.

Requirements

• Strong experience in security incident response and investigations in cloud-first environments.
• Strong Digital Forensics and Incident Response (DFIR) expertise.
• Experience using or administering Git/GitLab in a security or engineering context.
• Hands-on experience with SIEM, EDR, and/or detection engineering.
• Experience with cloud platforms (AWS and GCP).
• Familiarity with threat intelligence and adversary tactics (e.g., MITRE ATT&CK).
• Experience building or working with automation (e.g., Python, scripting, SOAR platforms).
• Interest or experience in applying AI/ML or data-driven techniques to detection, triage, or response workflows.
• Strong analytical and problem-solving skills and ability to operate effectively during high-severity incidents.
• Excellent written communication skills and a passion for clear, actionable documentation.
• Growth mindset and proactive approach to identifying and mitigating security risks.
• Due to government requirements, you must be a United States Citizen (by law, birth, or naturalization) to fill this position.

About the team

The Security Incident Response Team (SIRT) is a globally distributed team of engineers across AMER, APAC, and EMEA. The team leads security investigations and incident response for GitLab.com, GitLab cloud, and corporate environments, and performs cyber threat analysis and detection and response engineering. The team works cross-regionally with automation and processes to support collaboration, handovers, and project work.

Salary

• United States Salary Range: $139,200 - $218,400 USD (base salary range for U.S. residents; does not include bonuses, equity, or benefits).

Benefits

• Benefits to support health, finances, and well-being (links in original posting).
• Flexible Paid Time Off.
• Team Member Resource Groups.
• Equity compensation & Employee Stock Purchase Plan.
• Growth and Development Fund.
• Parental leave.
• Home office support.

Additional notes

• All roles are remote, but some carry specific location-based eligibility requirements; this role is remote for U.S. residents and requires U.S. citizenship and residency.
• GitLab encourages applicants from diverse backgrounds and notes many successful candidates do not meet every single requirement.