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Network Based Systems Analyst III

Solutions³ LLC · solutions3llc.com
ArlingtonSenior
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The job in short

Network-based systems analysis.

Details

Found
32 d ago · posted 2026-08-19
Location
Arlington, VA

Full description

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 Cyber Network Defense Analysts (CNDA) 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: Bachelor of Science in Computer Science, Cyber Security, Computer Engineering, or related degree; or High School Diploma and 7-9 years of network investigations experience

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