Senior Lead Incident Responder

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Enterprise Technology & Infrastructure

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This is CREST's analysis anchor. The primary job is investigation - but specifically the hard analytical core of it: taking a messy, high-volume, multi-source pile of log data and figuring out what actually happened, what the threat actor touched, and what was truly 're hiring for analytical horsepower first. The right person is someone who is genuinely a killer in analysis - they see the pattern in the noise faster than anyone in the room, build a defensible timeline from incomplete evidence, and can prove what happened rather than guess rational coordination and customer work are part of the role, but they sit on top of a foundation of elite investigative analysis.

If you're an investigator who runs to the data, this role is built for you.

• Own the analytical hardest-part of major investigations - take large, messy, multi-source datasets (Splunk, SQL, UIP/MonC, API/login/export logs) and reconstruct exactly what the threat actor did, what they accessed, and what was at risk.
• Serve as the team's go-to analyst on complex or ambiguous cases - the person others bring a stalled investigation to when the data isn't giving up its answer easily.
• Perform expert log analysis independently: complex multi-source joins, regex parsing, custom correlation, and hypothesis-driven pivoting across data sources under time pressure.
• Build accurate, complete, and defensible investigation timelines and CAN reports - analysis that holds up to legal and regulatory scrutiny.
• Lead investigations into advanced or high-impact incidents across Salesforce Core, Marketing Cloud, and Commerce Cloud - ATO, credential compromise, data exfiltration, API abuse, connected app exploitation.
• Approve and execute strategic containment actions (credential rotation, IP blocks, OAuth revocation, escalated platform actions) with appropriate stakeholder coordination.
• Lead hostile and contentious customer calls, including those with legal counsel or regulatory pressure, and communicate complex technical findings clearly.
• Engineer net-new detections for newly identified TTPs; turn what you find in analysis into durable detection coverage with Detection Engineering.
• Raise the analytical bar on the team - review Grade 6/7 case work, give structured written feedback on investigative rigor, and mentor junior responders on advanced analysis technique.
• Support CREST's AI-first initiatives - use and help improve automated agents for triage, documentation, and investigation workflows.
• Collaborate with Threat Intelligence, Detection Engineering, and Legal on incident handling and cross-functional initiatives.

• 8+ years in security incident response with consistent hands-on technical case work; currently performing investigations, not purely managing or coordinating.
• Demonstrated ability to take large, messy, multi-source data and independently produce a correct, defensible account of what happened. We will weight this above every other qualification.
• Expert log analysis - Splunk/SQL including complex multi-source joins, regex parsing, and custom correlation - performed independently, fast, without assistance.
• Expertise handling Account Takeover, credential compromise, data exfiltration, API abuse, and connected app exploitation incidents.
• Deep technical knowledge in systems, networks, cloud security, and forensic techniques.
• Demonstrated composure and judgment across multiple concurrent high-pressure investigations.
• Strong familiarity with Salesforce products/ecosystems, or comparable multi-tenant SaaS platforms.
• Ability to lead customer calls and communicate complex technical findings to…