Security Engineer - Offensive (Red / Purple Team)
We're partnering with a major enterprise organisation undertaking a significant cyber security uplift and are seeking an experiencedSecurity Engineer (Red / Purple Team)to help validate and strengthen security controls through real-world adversary simulation.
This role sits at the intersection of offensive security, threat-informed defence and detection engineering.
You'll emulate sophisticated attack techniques, identify critical security gaps and work closely with security and engineering teams to ensure those gaps are remediated and validated.
What You'll Be Doing
Lead red team and purple team engagements across critical applications, infrastructure and cloud environments
Build and maintain red team tooling and infrastructure
Validate security controls, detections and logging capabilities through real-world attack simulation
Identify security gaps and help drive remediation outcomes
Own and mature Breach & Attack Simulation (BAS) capabilities
Use AI-enabled techniques to scale attack path analysis and prioritise meaningful security exposures
Partner with engineering teams to implement recent detections, controls and telemetry sources
Support threat-informed defence initiatives aligned to the MITRE ATT&CK; framework
What You'll Bring
Strong hands-on offensive security experience including adversary emulation, C2 operations and exploitation
Experience assessing attack paths across cloud, infrastructure and endpoint environments
Strong understanding of detection engineering, security monitoring and logging
Breach & Attack Simulation (BAS) experience
Deep knowledge of the MITRE ATT&CK; framework
Python scripting and automation skills
Excellent stakeholder engagement and reporting capabilities
Highly Desirable
Experience with AI-assisted security tooling including GPT, Codex, Claude Code, Copilot or similar
GitLab Ultimate and AI-assisted code analysis environments
Application Security experience including SAST, DAST and SCA
Why Apply?
Work on a high-profile enterprise cyber security program
Exposure to cutting-edge AI-enabled security capabilities
Influence both offensive and defensive security outcomes
Long-term contract with strong extension prospects
Market ratesopen to negotiation
This is an outstanding opportunity for a senior Red Team, Purple Team or Offensive Security professional looking to work on complex enterprise environments and shape the future of cyber resilience.
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