Senior Security Engineer, Security Incident Response Team (SIRT) - EMEA

Overview

As a Senior Security Engineer on GitLab’s Security Incident Response Team (SIRT), you will play a critical role in defending GitLab.com and the broader GitLab environment against evolving security threats.

You will lead high‑impact incidents and investigations, drive continuous improvements in defense, detection and response capabilities, and help scale security operations through automation and intelligent workflows.

Operating within a 24/7 global environment, you will own incidents end‑to‑end - from detection and triage through containment, eradication, and recovery - while partnering cross‑functionally to strengthen GitLab’s overall security posture.

A key aspect of this role is leveraging automation and AI‑driven approaches to improve detection fidelity, accelerate investigations, and reduce response times.

This role is ideal for someone who thrives in high‑tempo environments, brings strong DFIR expertise, and is equally passionate about operational excellence and building scalable detection and response systems and workflows.

Responsibilities

• Lead and coordinate end‑to‑end incident response for high‑severity security events within a 24/7 global on‑call model, operating during EMEA business hours.
• Prepare clear executive communications that keep stakeholders informed during incidents.
• Investigate complex security incidents across cloud environments, applying strong 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 during incidents and lead proactive initiatives such as tabletop exercises.
• Mentor other engineers and help elevate the team’s overall incident response maturity.

Qualifications

• Strong experience in security incident response and investigations in cloud‑first environments.
• 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, 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, with the ability to operate effectively during high‑severity incidents.
• Excellent written communication skills with a passion for clear, actionable documentation.
• Growth mindset with a proactive approach to identifying and mitigating security risks.

About the Team

The Security Incident Response Team (SIRT) is a globally distributed team of engineers spread across AMER, APAC and EMEA. The team leads security investigations, incident response support, and response resolution, as well as cyber‑threat analysis, detection, and response engineering.

Despite being a global team, we work cross‑regionally, using automation and processes to facilitate collaboration when resolving incidents and handling general project work.

Benefits

• Flexible Paid Time Off
• Team Member Resource Groups
• Equity Compensation
• Employee Stock Purchase Plan
• Growth and Development Fund
• Parental Leave

Equal Opportunity

GitLab is proud to be an equal opportunity workplace and an affirmative action employer. GitLab’s policies and practices relating to recruitment, employment, career development and advancement, promotion, and retirement are based solely on merit, regardless of race, color, religion, ancestry, sex, national origin, age, citizenship, marital status, mental or physical disability, genetic information, discharge status from the military, or any other basis protected by law. GitLab will not tolerate discrimination or harassment based on any of these characteristics. The company complies with applicable EEO laws and encourages individuals from all backgrounds to apply. If you have a disability or special need requiring accommodation, please let us know during the recruiting process.