Network Security Specialist

4 weeks ago

Arlington, Virginia, United States Solutions³ LLC Full time
Job Description

Solutions³ LLC is seeking a highly skilled Cybersecurity Analyst II to support our prime contractor and their U.S. Government customer on a large mission critical development and sustainment program for on and offsite incident response to Government agencies and critical infrastructure owners who experience cyber-attacks.

The selected candidate will perform investigations to characterize the level of severity of breaches and develop mitigation/remediation plans. The ideal candidate will have 2+ years of directly relevant experience in network investigations and a strong understanding of CND policies, procedures, and regulations.

Responsibilities Include:

  • 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 analyzed 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 analyzes 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:
  • 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
Desired Skills:
  • Substantial 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
Desired Certifications:
  • DoD IAT Level II, IASAE II, CSSP Analyst
  • DoD GCIA, GCIH, CSSP Analyst/CSSP Incident Responder
  • DoD CEH, CSSP Analyst
  • SANS GIAC GNFA preferred
Required Education: BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma and 4+ years of network investigations experience

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