SITEC

About the Role

Peraton requires a Cyber Defense Incident Responder to support the Special Operation Command Information Technology Enterprise Contract (SITEC) - 3 EOM. This position is located at MacDill AFB in Florida.

The Cyber Defense Incident Responder serves as a frontline technical responder responsible for the end-to-end containment, investigation, eradication, and recovery phases of the cyber incident response lifecycle. Activated upon alert triage or security anomalies, this position executes rapid tactical containment to halt adversary maneuverability, conducts host and network digital forensics (volatile memory analysis, disk imaging, and live response), performs malware triage, and coordinates enterprise-wide credential purges. The Incident Responder establishes incident command during high-severity crises, interfaces with operational stakeholders and regulatory bodies, and authors formal After-Action Reports (AARs) detailing root causes to permanently remediate exploited weaknesses.

Key Responsibilities

• Conduct immediate assessment and validation of inbound escalations, determining scope, impact, severity, and root cause of live security incidents.
• Execute immediate response actions to isolate compromised endpoints, sever malicious network connections, and halt unauthorized lateral movement across enclaves.
• Conduct host-based and network digital forensics, including volatile memory analysis, disk imaging, and artifact extraction to reconstruct adversary timelines.
• Eliminate adversary persistence mechanisms, purge unauthorized credentials, and validate clean system baselines prior to returning services to normal operations.
• Maintain strict chain-of-custody documentation, produce formal Incident Summaries and After-Action Reports (AARs), and provide root-cause findings to the detection engineering team.
• Perform static and dynamic triage of recovered malicious binaries, scripts, and dropper files to extract hardcoded IOCs, persistence mechanisms, and execution behavior.
• Identify, catalog, and remove all adversary-created persistence artifacts, such as unauthorized scheduled tasks, rogue services, modified registry keys, and hidden backdoor accounts.
• Author comprehensive Incident Summaries and After-Action Reports (AARs) detailing attack vectors, impact timelines, and defensive breakdowns for mission leadership and stakeholders.
• Coordinate with legal counsel, law enforcement, and regulatory compliance authorities to share sanitized forensic evidence and ensure reporting mandates are met within required timelines.
• Design, facilitate, and participate in scenario-based tabletop exercises (TTXs) with leadership, IT operations, and mission stakeholders to test decision-making and operational readiness.
• Author and continuously update operational IR playbooks for specific attack scenarios (e.g., ransomware, supply chain compromise, business email compromise) and maintain readiness of the forensic toolkit (triage scripts, collection images).
• Query and analyze diverse telemetry streams across SIEM, centralized log repositories, and event managers to correlate disparate activities into a cohesive investigative trail.
• Aggregate forensic artifacts, authentication logs, and network connection records to construct precise chronological timelines detailing adversary initial access, execution, and lateral movement.
• Leverage Endpoint Detection and Response (EDR) platforms to execute live system queries, inspect active process trees, analyze parent-child relationships, and identify unauthorized execution artifacts.
• Utilize network traffic analyzers, packet capture (PCAP) inspection tools, and NetFlow/IPFIX logs to trace external communication channels, quantify data volume, and inspect malicious payloads.
• Maintain structured investigative notes, evidence logs, and task tracking within Security Orchestration and Incident Case Management systems throughout the entire incident lifecycle.

Qualifications

• Min 4 years with HS Diploma, 2 years AS/AA degree, 0 years with BS degree
• A DoW TS/SCI clearance is required
• SECURITY + AND must be DoW 8140 compliant under the Work Role Code 531- Cyber Defense Incident Responder - Basic level or higher.