Cyber Countermeasure Specialist - JB Pearl Harbor, HI

Military Spouse Corporate Career Network•Pearl Harbor, HI

7d•$95,000 - $120,000•Onsite

About The Position

Quantum Sky is seeking an experienced Cyber Countermeasure Specialist for its Network Assurance and Defensive Cyber Operations team, supporting the Defense Information Systems Agency Pacific (DISA PAC) at Ford Island, Joint Base Pearl Harbor-Hickam, Hawaii. The role supports the Global Services Management – Operations II Task Order 22 Boundary Cyber Defense and Cybersecurity Services Provider contract, protecting DODIN/DISN, USPACOM, and mission partner networks from advanced persistent threats and nation-state cyber actors. The specialist engineers, tests, validates, deploys, de-conflicts, and tracks custom detection signatures, firewall rules, automated blocking mechanisms, and mitigation actions across global boundary sensors, cloud access points, SIEM platforms, and specialized networks. Work spans unclassified and classified environments up to Top Secret/SCI, including operations in SCIFs at Ford Island. The position also manages signature and detection-rule lifecycles, develops defenses for multi-cloud and Zero Trust environments, turns threat intelligence into operational countermeasures, supports defensive automation and SOAR playbooks, analyzes defensive performance, and coordinates technical responses with military, government, and commercial stakeholders. The role requires participation in an on-call rotation for emergency after-hours surges or high-priority containment events.

Requirements

For Level II: bachelor's degree in cybersecurity, computer science, computer engineering, information systems, or a related technical discipline and at least 2 years of direct CND, intrusion detection/prevention, or security tool engineering experience; or an associate degree and at least 4 years of experience; or at least 6 years of relevant professional or military cyber operations experience in lieu of a degree.
For Level III: bachelor's degree and at least 4 years of relevant experience; or an associate degree and at least 6 years of experience; or at least 8 years of relevant experience or military service in lieu of a degree.
Before starting, hold a valid certification or degree compliant with DoD 8140.03 / DCWF Work Role Code 521, Cyber Defense Infrastructure Support Specialist, at the Basic or Intermediate level. Listed certifications include Security+ CE, CySA+, CCNA-Security, CND, SSCP, GICSP, GSEC, CASP+ CE, CCNP Security, GCIA, GCIH, or CISSP.
Ability to obtain the required Computing Environment certification within 6 months of the start date.
Experience writing, testing, and deploying custom intrusion signatures such as Snort, Suricata, YARA, or Bro/Zeek, as well as firewall and ACL rules.
Working administrative knowledge of Cisco FirePOWER Management Center, IDS/IPS appliances, and proxy or web content filtering solutions.
Deep understanding of TCP/IP, UDP, ICMP, DNS, HTTP/S, and TLS, and packet inspection tools such as Wireshark and tcpdump.
Familiarity with adversary tactics, techniques, and procedures and the MITRE ATT&CK framework.
Ability to participate in an on-call rotation for emergency after-hours surge or high-priority containment events.
Must be a U.S. citizen.
Active Top Secret clearance with eligibility to obtain SCI access upon start, with a Tier 5 / SSBI investigation within scope. Candidates with an active Secret clearance may be considered if Top Secret/SCI processing begins immediately upon hire with government approval.

Nice To Haves

Prior experience supporting DISA or Service Cyber Components such as ARCYBER, AFCYBER, FLTCYBER, or MARFORCYBER.
Hands-on experience developing automated incident-response workflows or SOAR playbooks, such as Cortex XSOAR, Splunk SOAR/Phantom, or Sentinel Logic Apps.
Scripting expertise in Python, PowerShell, Bash, or regular expressions for signature creation and data parsing.
Knowledge of EDR platforms such as Microsoft Defender for Endpoint, Tanium, or CrowdStrike and their containment actions.
Familiarity with DoD security policies, including DoDI 8530.01 and CJCSM 6510.01F, and incident-tracking databases such as Rally.

Responsibilities

Design, author, test, and deploy custom detection and prevention signatures for antivirus, network intrusion detection/prevention systems, web content filtering, and enterprise recursive services.
Develop and tune active countermeasures across DISA enterprise boundaries, including Internet Access Points, Boundary Cloud Access Points, and DODIN DMZs.
Analyze automated-blocking telemetry, investigate events that bypassed defenses, and refine blocking algorithms to reduce false positives and false negatives.
Track deployed customer and enterprise countermeasures and document de-confliction actions and configuration changes.
Maintain and execute rapid-rollback procedures to restore network devices and sensors to baseline when defensive actions affect mission availability, while following government-directed network freezes.
Manage the lifecycle of signatures and detection rules, including reviews, tuning, retirement of outdated detections, and monthly custom-countermeasure reporting.
Develop and execute countermeasures for enterprise cloud and Zero Trust environments, including Joint Warfighter Cloud Capability providers, Thunderdome ZTNA, and Microsoft Defender.
Translate threat intelligence and Attack Sensing and Warning data into countermeasures, automate repeatable mitigations, and convert tactical hunt hypotheses into production analytics.
Conduct trend analysis of incident response actions and defense performance and contribute to the monthly Respond Statistical and Trend Report.
Ensure containment and countermeasure actions comply with CJCSM 6510.01F and DoDI 8530.01; record response data in the DoD incident reporting structure and provide technical mitigation recommendations to the DISA Joint Operations Center.
Develop and deploy countermeasures for the PACOM Mission Network and Joint Operational Edge – Coalition Environment architectures, using mission edge endpoints, identity and access integrations, and user and entity behavior analytics.
Identify opportunities for security orchestration; author and improve SOAR playbooks, API workflows, and scripts for automated containment.
Operate in SCIFs at Ford Island and apply countermeasures in classified enclaves up to Top Secret/SCI, including JWICS and YLAN.
Coordinate technical responses and rule modifications with DISA, USPACOM J6, DCDC, USCYBERCOM, and commercial vendors.
Participate in an on-call rotation for emergency after-hours surge or high-priority operational containment events.