Network Based Systems Analyst

Job Title: Network Based Systems Analyst
Location: Arlington, VA (On-Site)
Clearance: Active TS/SCI Required
Company: Quantum Science Solutions (QSS)
Compensation: Open Rate
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Position Overview
Quantum Science Solutions (QSS) provides advanced cybersecurity support including threat hunting, incident response, digital forensics, and network-based analysis. We are seeking a Senior Network Based Systems Analyst to support a critical customer mission.
The Cyber Network Defense Analyst (CNDA) monitors and analyzes network activity to identify suspicious behavior, investigate threats, and support the protection of information systems and network infrastructure from cyber attacks.
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Key Responsibilities
• Support incident response investigations and coordinate with Government leads during cyber incidents
• Interface with customers during onsite engagements and provide technical recommendations
• Analyze anomalous network activity and determine appropriate response actions
• Assess network architectures, topologies, and device configurations to identify security risks
• Collect and analyze network intrusion artifacts including PCAPs, domains, URIs, and certificates
• Investigate malicious network activity to identify attack methods, exploited vulnerabilities, and potential impacts
• Analyze network device integrity data for signs of tampering or compromise
• Support real-time Computer Network Defense (CND) operations including threat analysis, intrusion tracking, forensic collection, and remediation efforts
• Collaborate with distributed teams to support mission requirements
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Mandatory Skills
• U.S. Citizenship
• Active TS/SCI Clearance
• Ability to obtain DHS Suitability
• 5+ years of directly relevant network investigation experience
• Strong knowledge of CND policies, procedures, and regulations
• In-depth knowledge of TCP/IP and common protocols including ICMP, HTTP/S, DNS, SSH, SMTP, SMB, and NFS
• Experience with Wi-Fi networking, enterprise network architectures, DMZs, and WAN environments
• Experience with Splunk or other SIEM platforms
• Understanding of the MITRE ATT&CK framework
• Knowledge of defense-in-depth principles and network security architecture
• Ability to identify and analyze anomalous network traffic and metadata
• Experience reconstructing malicious activity from network traffic analysis
• Experience evaluating network topologies and data flows
• Ability to work effectively across geographically dispersed teams
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Preferred Skills
• Knowledge of network device integrity methodologies
• Experience with Wireshark and PCAP analysis
• Experience analyzing command-and-control (C2) traffic
• Knowledge of evidence preservation procedures and standards
• Experience supporting virtualized environments
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Education
Bachelor's degree in Computer Science, Cybersecurity, Computer Engineering, Information Technology, or related field
OR
High School Diploma with 7-9 years of directly relevant experience
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Desired Certifications
• DoD 8140.01 IAT Level II, IASAE Level II, CSSP Analyst / CSSP Incident Responder, GCIA, GCIH, CEH, GIAC Network Forensic Analyst (GNFA) Preferred
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Why QSS?
At QSS, you'll support mission-critical cyber defense operations protecting government and critical infrastructure networks from evolving threats while working alongside experienced cybersecurity professionals.
Benefits Include:
• Competitive compensation with annual performance bonuses
• Premium Medical, Dental, & Vision coverage
• Generous PTO plus Federal Holidays
• 401(k) with company match