Senior Security Engineer, Incident Response Team (Australia)

Job description

About this role

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. 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.

Responsibilities

• - Lead and coordinate end-to-end incident response for high-severity security events. SIRT operates a 24/7 follow the sun model across AMER, APAC and EMEA. This role covers the APAC window and participates in a rotating on-call schedule.
• - 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 Detection 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 (e.g. tabletops)
• - Mentor other engineers and help elevate the team’s overall incident response maturity

Qualifications and requirements

• - 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; 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