Cyber Incident Responder – TS/SCI Defender

G2IT; Suitland (MD); On-site; USD 140,000 - 190,000; Full time

Job summary

G2IT is seeking an Incident Responder to join a mission-focused cybersecurity team supporting the Office of Naval Intelligence (ONI) at the Hopper Global Communications Center (HGCC) in Suitland, MD. You will serve as a digital first responder defending critical maritime intelligence networks, responding to incidents, containing systems, and supporting recovery in TS/SCI environments.

The role requires extensive experience in CND, SIEM, and network defense, with collaboration across security

Qualifications

• Bachelor's degree in Cybersecurity, Information Technology, Information Assurance, or related field desired; Master's preferred.
• 15+ years of relevant professional experience without a degree.
• Active TS/SCI security clearance.
• 10 years of concentrated experience in the CND discipline.
• 5+ years of professional experience monitoring and investigating alerts from cybersecurity tools.
• Experience with SIEM systems such as Splunk and Elastic.
• Experience with NIDPS such as Cisco FirePower and Palo Alto NGFW, host tools Trellix ePO, Microsoft Defender, Tanium.
• Knowledge of penetration testing and red team tactics, techniques, and procedures, as well as tools such as Kali, SamuraiWTF, Nmap, Burp Suite, sqlmap, and Metasploit.
• Knowledge of ticketing systems, report writing, and intelligence gathering, analysis, and dissemination techniques specific to cybersecurity.

Responsibilities

• Perform all phases of the incident response lifecycle, including detection, analysis, containment, eradication, and recovery.
• Receive and act on escalations from Tier 1 analysts, conduct spillage response and cleanup activities, and support incident response for TS/SCI networks.
• Receive and respond to incident notifications from customers via telephone and email.
• Prepare and submit ESAFs to the NNWC Electronic Spillage Center.
• Monitor DLP outputs for classified code words and potential spillage indicators.
• Coordinate and communicate with internal and external stakeholders, including SSOs, JAG, ONI ISSM, Hopper ISSM, CNI, NAVNETWARCOM, IC SCC, NCDOC, NCIS, and other IC/DoD SOC/DCO teams.
• Maintain detailed incident documentation and timelines throughout the response process.
• Participate in incident response meetings, briefings, and after action reviews.
• Support the execution and evaluation of annual security exercises.

Skills

Incident response

Cybersecurity operations

SIEM monitoring

Security coordination

Stakeholder communication

Education

Bachelor's degree preferred

Master's degree preferred

15+ years without a degree

Tools

Splunk

Elastic

Cisco FirePower

Palo Alto NGFW

Trellix ePO

Microsoft Defender

Tanium

Kali

SamuraiWTF

Nmap

Burp Suite

sqlmap

Metasploit

Job description

G2IT is seeking an Incident Responder to join a mission-focused cybersecurity team supporting the Office of Naval Intelligence (ONI) at the Hopper Global Communications Center (HGCC) in Suitland, MD. You will serve as a digital first responder defending critical maritime intelligence networks, responding to incidents, containing systems, and supporting recovery in TS/SCI environments.

The role requires extensive experience in CND, SIEM, and network defense, with collaboration across security