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Network Based Systems Analyst III with Security Clearance

Farfield Systems, IncArlington, VA🇺🇸United StatesPosted 14 Jul 2026

Quick Overview

Work Type
On Site
Schedule
Employee
Level
Mid Senior

Job Description

  • ** Requires a Top Secret/SCI clearance and U.S. Citizenship*** 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
  • Assists with the writing and publishing of Computer Network Defense guidance and reports on incident findings to appropriate constituencies
  • 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

Required Skills:

  • U.S. Citizenship
  • Must have an active TS/SCI clearance
  • Must be able to obtain DHS Suitability
  • 5+ years of directly relevant experience in network investigations
  • Knowledge of CND policies, procedures and regulations
  • Knowledge of TCP/IP protocols
  • Strong understanding of standard protocols - ICMP, HTTP/S, DNS, SSH, SMTP, SMB, NFS, etc.
  • Knowledge and experience of Wifi networking - Knowledge and experience with network topologies - DMZ's, WAN's, etc.
  • Experience with Splunk (or other SIEM's)
  • Ability to find, characterize and report signs of infection
  • 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

Desired Skills:

  • Knowledge of network device integrity concepts and methodologies
  • Understanding of how to preserve evidence integrity according to standard operating procedures or national standards
  • Knowledge of network device integrity concepts and methodologies
  • Proficiency with network analysis software (e.g. Wireshark)
  • Proficiency with carving and extracting information from PCAP data - Proficiency with non-traditional network traffic (e.g. Command and Control)
  • Proficiency with preserving evidence integrity according to standard operating procedures or national standards
  • Proficiency with designing cyber security systems and environments in a Linux and/or Windows environment
  • Proficiency with virtualized environments Required Education:
BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 4-6 years of network investigations or forensics experience.

Desired Certifications:

  • DoD 8140.01 IAT Level II, IASAE II, CSSP Analyst
  • DoD 8140.01 GCIA, GCIH, CSSP Analyst/CSSP Incident Responder
  • DoD 8140.01 CEH, CSSP Analyst
  • SANS GIAC GNFA preferred

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