Senior Associate — Offensive Security Compromise Assessment (Fusion Center, M&A)
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Job Location:
Monthly Salary:
Posted on:
Yesterday
Vacancies:
1 Vacancy
Job Summary
Senior Associate Offensive Security / Compromise Assessment (Fusion Center M&A)
Role Overview
Execute timeboxed offensive security and compromise assessment work during M&A due diligence and the 120day postclose integration window. Conduct targeted assessments to detect active compromise validate control gaps and prioritise remediation to enable safe connectivity and rapid risk reduction across acquired environments.
Key Outcomes
Deliver compromise assessments (host identity cloud email endpoint) with severityranked findings and day0/day30 remediation plans.
Run threatled testing / purpleteam exercises mapped to MITRE ATT&CK emphasising ransomware and identity abuse paths.
Stand up rapid evidence collection playbooks and executive readouts for deal teams.
Responsibilities
Plan and execute targeted red/purpleteam engagements and forensic triage to detect ongoing attacks.
Perform identity and tenant hygiene checks (M365/Entra MFA coverage conditional access role drift).
Assess endpoint/EDR and email controls; review SIEM/EDR telemetry and containment readiness.
Validate cloud posture (Azure/AWS) and network segmentation for interim connectivity.
Document findings risk and remediation; collaborate with platform owners to land fixes within SLA.
Required Qualifications
36 years in offensive security incident response or threat detection.
Handson with EDR SIEM identity security and Windows/Linux triage; familiarity with Microsoft 365/Entra.
Knowledge of attack simulation tools and MITRE ATT&CK; strong reportwriting under tight timelines.
Preferred Qualifications
Certifications such as OSCP/CRTO/eJPT and/or GCFA/GIAC IR track.
Experience in M&A due diligence or compromise assessment programs.
Key Performance Indicators (KPIs)
Mean time to first credible finding.
Percentage of day0 criticals remediated within SLA.
Evidence package completeness and quality.
Deal timeline adherence.
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Required Experience:
Senior IC
Key Skills
- Business Intelligence
- Category Management
- Drawing
- Electrical Controls
- Academics
- Graphics Design
About Company
Today, Grant Thornton LLP is the U.S. member firm of Grant Thornton International Ltd, one of the world’s leading organizations of independent audit, tax and advisory firms. These firms help dynamic organizations unlock their potential for growth by providing meaningful, forward-looki ... View more
