Security Engineer (Cyber Incident Investigation & Response)

Computappoint; Greater London; Hybrid; GBP 80,000 - 110,000; Full time

Benefits offered by this job

Hybrid work schedule

City of London office access

Job summary

Computappoint is seeking a seasoned Security Engineer for incident investigation and response in a regulatory environment. The role combines hands-on triage, forensic analysis, threat assessment, and remediation within a large enterprise.

You will investigate escalated security events, map IoCs and attacker behaviours, and improve detection with engineering and threat-informed defenses. Hybrid work in London is available.

Qualifications

• Experience in Security Engineering or Incident Response in enterprise settings.
• Proven forensic analysis across endpoints, networks and cloud.
• Strong KQL query development and SIEM experience.
• Ability to communicate findings to technical and non-technical stakeholders.

Responsibilities

• Lead response to security incidents escalated from SOC to containment and remediation.
• Perform forensic analysis across endpoints, identities, networks, and cloud.
• Identify IoCs, attacker behaviours, and attack pathways.
• Develop detection logic, rules, and KQL queries to improve threat visibility.
• Produce technical findings, remediation recommendations, and lessons learned.
• Collaborate with security, infra, and application teams to strengthen controls.

Skills

Incident response

Forensic analysis

Threat hunting

SIEM

KQL

Communication

Tools

EDR

Cloud security

EndPoint security

Job description

• Outside IR35 Contract Role – Market Rates – ASAP Start
• Hybrid 2 days a week in the office (City of London)
• Highly Regulated Industry

Security Engineer (Cyber Incident Investigation & Response)

Our client is looking for a strong Security Engineer to act as the technical escalation point above their SOC function, taking ownership of complex security incidents and driving investigations through to resolution.

This is a hands–on role focused on incident triage, forensic investigation, threat analysis, and remediation within a large enterprise environment.

You will be responsible for investigating escalated security events, identifying indicators of compromise (IoCs), performing root cause analysis, and improving detection capabilities through engineering and threat–informed defence measures.

Key Responsibilities:

• Investigate and lead the response to security incidents escalated from the SOC team through to containment and remediation
• Perform forensic analysis across endpoints, identities, network, and cloud environments to determine scope, impact, and root cause
• Identify, analyse, and validate indicators of compromise (IoCs), attacker behaviours, and attack pathways
• Develop and optimise detection logic, correlation rules, and KQL queries to improve threat visibility and response effectiveness
• Produce clear technical findings, remediation recommendations, and lessons learned following security incidents
• Partner with security operations, infrastructure, and application teams to strengthen security controls and reduce future risk

Qualifications and Requirements:

• Previous experience in Security Engineering, Incident Response, Digital Forensics, Threat Hunting, or advanced SOC environments
• Strong hands–on experience investigating escalated cyber security incidents within enterprise–scale environments
• Proven ability to conduct forensic analysis and determine root cause across endpoint, identity, network, and cloud technologies
• Experience identifying indicators of compromise (IoCs), mapping attacker activity, and recommending effective remediation actions
• Strong KQL query development skills and experience working with SIEM, EDR, and security monitoring platforms
• Excellent analytical and communication skills, with the ability to present technical findings to both technical and non–technical stakeholders

This role would suit someone who enjoys deep technical investigation, security engineering, and incident remediation rather than traditional alert monitoring or administrative SOC activities.