Senior Cyber Network Defense Analyst (TS/SCI)

ARSIEM Corporation; Arlington (VA); On-site; USD 110,000 - 140,000; Full time

Job summary

ARSIEM Corporation is seeking a Cyber Network Defense Analyst (CNDA) to monitor network activity, analyze threats, and support on-site duties for a government client in Arlington, VA. The role requires a TS/SCI clearance and substantial experience in network investigations and SIEM analysis.

Responsibilities include incident response coordination, customer interfacing on-site, and applying defense-in-depth security principles to mitigate incidents and protect critical networks.

Qualifications

• BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 7-9 years of network investigations experience.
• 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.
• In depth knowledge of standard protocols – ICMP, HTTP/S, DNS, SSH, SMTP, SMB, NFS, etc.
• In depth knowledge and experience of Wifi networking.
• In depth knowledge and experience of network topologies DMZ’s, WAN’s, etc.
• Substantial knowledge of Splunk (or other SIEM’s).
• Understanding of MITRE Adversary Tactics, Techniques and Common Knowledge (ATT&CK).
• Knowledge of Computer Network Defense policies, procedures, and regulations.
• Knowledge of defense-in-depth principles and general attack stages with respect to network security architecture.
• Ability to characterize and analyze network traffic to identify anomalous activity and potential threats to network resources.
• Ability to identify and analyze anomalies in network traffic using metadata.
• Experience with reconstructing a malicious attack or activity based on network traffic.
• Experience examining network topologies to understand data flows through the network.
• Must be able to work collaboratively across physical locations.

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 actions in response to identified and analyses 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, etc.) and uses discovered data to enable mitigation of potential Computer Network Defense incidents
• Analyzes identified malicious network activity to determine weaknesses exploited, exploitation methods, effects on system and information
• Collects network device integrity data and analyze for signs of tampering or compromise
• Assists with real-time CND incident handling (i.e., forensic collections, intrusion correlation and tracking, threat analysis, and advising on system remediation) tasks to support onsite engagements

Job description

ARSIEM Corporation is seeking a Cyber Network Defense Analyst (CNDA) to monitor network activity, analyze threats, and support on-site duties for a government client in Arlington, VA. The role requires a TS/SCI clearance and substantial experience in network investigations and SIEM analysis.

Responsibilities include incident response coordination, customer interfacing on-site, and applying defense-in-depth security principles to mitigate incidents and protect critical networks.