Senior Security Incident Response Analyst

KPMG LLP; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

KPMG LLP in London is seeking a Senior Security Incident Response Analyst to own complex investigations across a diverse technology environment for the UK and Switzerland. You will act as a senior escalation point for high-priority incidents, combining hands-on investigation with calm coordination and clear communication.

The role is based in the UK on a hybrid basis and requires participation in the on-call rota, including outside standard hours. Security clearance eligibility is required.

Qualifications

• Experience in security operations, incident response or forensics with ownership of escalated incidents.
• Ability to investigate threats across endpoints, identity, cloud, email and network.
• Knowledge of attacker tactics, techniques and procedures in investigations or threat hunting.
• Experience leading technical investigations, creating incident timelines and post-incident reports.
• Strong analytical and problem-solving skills with effective decision-making under pressure.
• Clear written and verbal communication for technical and non-technical stakeholders.

Responsibilities

• Lead investigations into complex and high-severity cyber security incidents, establishing scope, impact and risk.
• Coordinate containment, eradication and recovery activities for incidents to reach controlled resolution.
• Provide senior technical guidance to analysts and act as escalation point during major incidents, including on-call duty.
• Conduct forensic investigation across endpoint, identity, cloud, email and network technologies.
• Produce timelines, root cause analyses and post-incident reports for stakeholders.
• Collaborate with Threat Intelligence and Detection Engineering to improve detection and investigations.
• Lead proactive threat hunting to identify undetected activity and improve controls.
• Improve incident response playbooks, processes and automation, sharing knowledge across the team.

Skills

Security operations

Incident response

Cyber defence

Digital forensics

Threat hunting

Cloud security

Communication

Tools

Microsoft Defender XDR

Microsoft Defender for Endpoint

Microsoft Sentinel

Microsoft Defender for Identity

Microsoft Defender for Cloud

Job description

Select how often (in days) to receive an alert:

Senior Security Incident Response Analyst

Location:

London

About the role

This role sits within Group Corporate Services, which supports KPMG's people and business through firmwide specialist services and operational capabilities. Within Security Operations, you will join the Tier 2 Incident Response team and take ownership of complex investigations across a diverse technology environment serving KPMG in the UK and Switzerland.

You will act as a senior escalation point for high-priority and major cyber security incidents, combining hands-on technical investigation with calm coordination and clear communication. The role is based in the UK on a hybrid basis and is at Grade D. Participation in the Security Operations on-call rota is required, including providing technical and operational leadership outside standard business hours. You must be eligible for Security Check clearance or able to obtain it.

Roles and responsibilities

Lead investigations into complex and high-severity cyber security incidents, establishing the scope, business impact and risk.

Coordinate containment, eradication and recovery activities so incidents progress efficiently to a controlled resolution.

Provide senior technical guidance to analysts and act as an escalation point during high-priority and major incidents, including through the on-call rota .

Conduct forensic investigation and evidence collection across endpoint, identity, cloud, email and network technologies.

Produce clear investigation timelines, root cause analysis and post-incident reports for technical and business stakeholders.

Work with Threat Intelligence and Detection Engineering teams to apply knowledge of emerging threats, improve detection coverage and strengthen investigations.

Lead proactive threat hunting to identify previously undetected activity, security weaknesses and opportunities to improve controls.

Improve incident response playbooks, processes, automation and operational standards, sharing knowledge across the wider cyber security function.

Experience and skills needed

Demonstrable experience in security operations, incident response, cyber defence or digital forensics, including ownership of escalated security incidents.

Evidence of investigating threats across endpoint, identity, cloud, email and network environments and translating findings into appropriate response actions.

Practical knowledge of attacker tactics, techniques and procedures, with experience applying this knowledge to investigations or threat hunting.

Experience leading technical investigations, building incident timelines and completing root cause analysis and post-incident reporting.

Strong analytical and problem-solving skills, with evidence of making sound decisions and coordinating activity during high-pressure incidents.

Clear written and verbal communication skills, with experience explaining technical findings to technical and non-technical stakeholders and collaborating across security teams.

Experience with Microsoft Sentinel, Microsoft Defender XDR, Microsoft Defender for Endpoint, Microsoft Defender for Identity, Microsoft Defender for Cloud, Microsoft Purview, digital forensics and incident response tools, security orchestration and automation platforms, threat hunting methods, or cloud security technologies across Microsoft Azure, Amazon Web Services or Google Cloud Platform would be beneficial. Relevant certifications, such as Microsoft Certified: Security Operations Analyst Associate (SC-200), CompTIA Cybersecurity Analyst (CySA+), GIAC Certified Incident Handler (GCIH), GIAC Certified Forensic Analyst (GCFA), Microsoft Certified: Azure Security Engineer Associate (AZ-500), or an equivalent qualification, would also be advantageous.