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Network Systems Analyst III

Job in Arlington, Arlington County, Virginia, 22201, USA
Listing for: Solutions³ LLC
Full Time position
Listed on 2025-12-05
Job specializations:
  • IT/Tech
    Cybersecurity, Network Security
Job Description & How to Apply Below
Position: Network Based Systems Analyst III

Title:
Network Based Systems Analyst III

Description:
Solutions³ LLC is supporting 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. Solutions³ LLC provides advanced technical assistance, proactive hunting, rapid onsite incident response, and immediate investigation, using host and network-based cybersecurity analysis capabilities.

Solutions³ LLC is seeking a Network Based Systems Analyst III to support this critical mission by providing front line response for digital forensics/incident response (DFIR) and proactively hunting for malicious cyber activity.

Eligibility:

  • Must be a
    US Citizen
  • Must have an
    active
    TS/SCI clearance
  • Must be able to obtain

    DHS Suitability prior to starting employment
  • 5+ years of directly relevant experience in network investigations
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 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
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 virtualized environments
Desired

Certifications:

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

Education:

BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma and 7+ years of network investigations experience

Provide the level of Security Clearance you currently hold.*

Do you understand the job responsibilities and feel you would be successful in executing these tasks? If yes, please be prepared to provide examples during an interview or email them in advance of an interview.*

Do you understand the required job skills and feel you have those skills? If yes, please be prepared to provide examples during an interview and/or email them in advance of an interview.*

Is the location shown in the

Job Description within communicating distance for you? Assuming typical traffic patterns, the prime will not accept anyone more than 2-hrs from the site location. **

The client will require their own suitability process. This will need to be completed BEFORE an official start date can be determined. This process could take anywhere between 4-6 weeks. Would this inhibit you from moving forward?*

If you were referred to us by a Solutions³ team member or partner, please indicate here:

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