Senior Cyber Network Defense Analyst – Remote/Onsite

argocyber; Arlington (VA); Hybrid; USD 110,000 - 170,000; Full time

Job summary

Argo Cyber Systems, LLC is seeking a Cyber Network Defense Analyst (CNDA) Level III - Forensics to join our mission-focused team. The role supports government-led DFIR efforts with remote and on-site engagements, leveraging host-, network-, and cloud-based capabilities.

You will coordinate incident response activities, analyze anomalous network traffic, and collect forensic artifacts to drive rapid remediation. A TS/SCI clearance and strong CND background are required.

Qualifications

• U.S. Citizenship required.
• Active TS/SCI clearance required.
• 5+ years of directly relevant experience in network investigations.
• In depth knowledge of CND policies, procedures and regulations.
• In depth knowledge of TCP/IP protocols and common network services.

Responsibilities

• Assists the Government lead in coordinating teams in preliminary incident response investigations.
• Assists the Government lead with interfacing with the customer while on site.
• Determines appropriate courses of action in response to identified and analyzed anomalous network activity.
• Assesses network topology and device configurations identifying critical security concerns and providing security best practice recommendations.
• Collects network intrusion artifacts (e.g., PCAP, domains, URI's, certificates) and uses data to enable mitigation of potential CN D incidents.
• Analyzes identified malicious network activity to determine weaknesses exploited and effects on systems.
• Collects network device integrity data and analyzes for signs of tampering or compromise.
• Assists with real-time CND incident handling tasks to support onsite engagements.

Skills

CND policies

TCP/IP protocols

MITRE ATT&CK

Incident response coordination

Network investigations

Education

BS Computer Science or related

HS Diploma + 7-9 years network investigations experience

Tools

Splunk

Wireshark

PCAP analysis

Job description

Argo Cyber Systems, LLC is seeking a Cyber Network Defense Analyst (CNDA) Level III - Forensics to join our mission-focused team. The role supports government-led DFIR efforts with remote and on-site engagements, leveraging host-, network-, and cloud-based capabilities.

You will coordinate incident response activities, analyze anomalous network traffic, and collect forensic artifacts to drive rapid remediation. A TS/SCI clearance and strong CND background are required.