Cyber Defense Analyst - Overnights

ASRC Federal is a leading government contractor furthering missions in space, public health and defense. As an Alaska Native owned corporation, our work helps secure an enduring future for our shareholders. Join our team and discover why we are a top veteran employer and Certified Great Place to Work.

ASRC Federal is seeking a highly skilled and experienced Cyber Defense Analyst (Threat Hunter) to join our dynamic team on the Overnight shift ), providing extended-hours coverage that includes weekend and holiday rotations (Four 10-hour shifts per work week). This is a fully on-site position at Quantico Marine Corps Base, VA - no telework is available for this role.

The successful candidate will perform robust network security monitoring and proactively identify potential threats across our enterprise infrastructure. This role is critical for defending mission systems, conducting in-depth traffic and vulnerability analysis, and maintaining a strong security posture in support of Department of War missions.

The Cyber Defense Analyst (Threat Hunter) is responsible for comprehensive network security monitoring and proactive threat hunting during swing shift, weekend, and holiday coverage windows. The analyst safeguards the network through continuous traffic analysis, vulnerability and wireless scanning, and leverages enterprise tools such as SIEM, SOAR, Crowd Strike, Cyber Ark, and Endpoint Security Suite.

Key responsibilities include:

• Implement Information Assurance Vulnerability Management (IAVM) programs.
• Manage Network Access Control.
• Provide insider threat support.
• Monitor data at rest.
• Review web content filtering.
• Maintain and upkeep various cybersecurity applications and tools on servers and workstations to ensure high operational readiness during all covered hours.

• At least five years of hands‑on technical cybersecurity experience and knowledge of Computer Network Defense concepts, DISA Security Technical Information Implementation Guides, DoD A&A Process, NIST SP 800‑53, NIST SP 800‑61, CJCSM 6510.01 B, United States Cyber Command guidelines, and other applicable DoD Cyber Security and Computer Network Defense policies.
• Active Top‑Secret Clearance required, eligible to be upgraded to TS/SCI.
• Bachelor’s degree in information technology, Information Systems Management, Cyber Security, or equivalent experience.
• Must meet 8570 certification requirements at the time of hire (e.g., CCNA Security, CySA+, GICSP, GSEC, Security+, SSSP or a CSSP Auditor Certification such as CEH, CISA, GSNA).
• Willingness and availability to work the swing shift ), including weekend and holiday rotations, fully on site at Quantico, VA.

• Log analysis & threat identification: experience analyzing log files from network traffic, firewall, IDS, DNS, and ESS logs to identify possible security threats.
• Policy enforcement: ability to identify violations of internet access by reviewing web content filtering logs in accordance with DoD policy and SOPs.
• Task management: experience processing and handling JFHQ DODIN Cyber related tasks to completion.
• Proactive threat hunting: performance of threat hunting activities using DoD‑approved cyber tools through data hunting, manipulation, and presentation, including generating queries and reports for management and customers.
• Incident assessment: validation and confirmation of critical security events and assessment of impact, incorporating data from multiple tool sources.
• Investigation & forensics: identify evidence of illegal activity involving cybercrime offenses and examining computers involved with malware.
• Malware analysis: use forensic tools and investigative methods to perform complex malware analysis.
• Process documentation: experience developing and maintaining SOPs for security monitoring.
• Reporting: provide daily, weekly, monthly reports to senior leadership on key network security indicators.

• Fully on site position at Quantico Marine Corps Base, VA; telework not offered for this shift.
• Must work the assigned overnight shift ) and support weekend and holiday coverage as scheduled (four 10-hour shifts…