Senior Security Engineer, Security Incident Response Team (SIRT)

This position is listed on behalf of a partner company, who manages all applications and next steps.

Our partner is looking for a Senior Security Engineer, Security Incident Response Team (SIRT) based in United Kingdom.

This is an exciting opportunity to join a globally distributed cybersecurity team responsible for protecting large-scale cloud environments and critical platforms against evolving threats.

In this role, you will lead high-impact incident response activities, investigate sophisticated security events, and help shape modern detection and response capabilities through automation and AI-driven approaches.

You will work closely with cross-functional teams across engineering, infrastructure, and threat intelligence to continuously strengthen security posture and operational resilience.

The position offers a fast-paced and collaborative environment where technical expertise, strategic thinking, and innovation play a key role in driving security excellence at scale.

• Accountabilities
• Lead end-to-end response activities for high-severity security incidents, from detection and triage through containment, eradication, and recovery.
• Investigate complex cybersecurity events across cloud environments using advanced Digital Forensics and Incident Response (DFIR) methodologies.
• Coordinate incident communications and provide clear updates to technical and executive stakeholders during critical events.
• Design and improve detection strategies, including SIEM use cases, telemetry pipelines, and alerting mechanisms in collaboration with engineering teams.
• Develop and enhance automation initiatives and AI-assisted workflows to accelerate investigations and improve response consistency.
• Partner with threat intelligence teams to contextualize emerging threats and strengthen detection coverage.
• Conduct root cause analyses and lead post-incident reviews to identify improvements and reduce future risks.
• Create and maintain operational documentation, including runbooks, playbooks, and incident response procedures.
• Collaborate with cross-functional stakeholders on proactive security initiatives, tabletop exercises, and resilience programs.
• Mentor team members and contribute to the continuous maturity and scalability of incident response operations.

Requirements

• Significant experience in security incident response, digital forensics, and investigations within cloud-first environments.
• Hands‑on expertise with AWS and/or Google Cloud Platform security operations and incident handling.
• Strong experience with SIEM platforms, EDR solutions, and detection engineering practices.
• Solid understanding of threat intelligence frameworks and adversary techniques, including familiarity with MITRE ATT&CK.
• Experience developing automation solutions using scripting languages such as Python or leveraging SOAR platforms.
• Interest or practical experience in applying AI, machine learning, or data-driven methodologies to security operations.
• Strong analytical and problem-solving skills, with the ability to perform effectively during high‑pressure incidents.
• Experience using Git-based platforms within engineering or security environments.
• Excellent written and verbal communication skills, with the ability to produce clear documentation and executive-level updates.
• Demonstrated growth mindset, proactive approach to risk reduction, and commitment to continuous improvement.
• Ability to participate in a rotating on‑call schedule supporting a global, 24/7 incident response function.

Benefits

• Fully remote work environment with opportunities to collaborate across globally distributed teams.
• Flexible paid time off policy promoting work-life balance and personal wellbeing.
• Comprehensive health and wellness benefits designed to support employees and their families.
• Equity compensation and employee stock purchase opportunities.
• Dedicated growth and development budget for training, certifications, conferences, and continuous learning.
• Generous parental leave and family support programs.
• Inclusive employee resource groups and initiatives that foster belonging and collaboration.
• Opportunity to work on cutting-edge security challenges at scale while leveraging modern technologies, automation, and AI.
• Strong culture focused on innovation, knowledge sharing, transparency, and continuous career growth.
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