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Cyber Network Defense Analysts (CNDA) / Host Based Systems Analyst
Cyber Network Defense Analysts (CNDA) / Host Based Systems Analyst-March 2024
Dulles
Mar 28, 2026
About Cyber Network Defense Analysts (CNDA) / Host Based Systems Analyst

  Cyber Network Defense Analysts (CNDA) / Host Based Systems Analyst

  Location: Dulles, VA

  Must have Top Secret Clearance

  An onsite incident response, and immediate investigation and resolution using host-based, network-based, and cloud-based cybersecurity analysis capabilities. Team personnel provide front-line response for digital forensics/incident response (DFIR) and proactively hunt for malicious cyber activity.

  Node is seeking Cyber Network Defense Analysts (CNDA) to support this critical customer mission. The CDNA uses information collected from a variety of sources to monitor network activity and analyze it for evidence of suspicious behavior. Monitoring and analysis are performed to identify and report events that occur, or might occur, within the network, in order to protect information, information systems, and networks from threats.

  Responsibilities:

  Assist customer with coordinating preliminary incident response investigations

  Assist customer interface with external customers

  Determine appropriate course of action in response to identified and analyze anomalous network activity

  Assesses network topology and device configurations identifying critical security concerns and providing security best practice recommendations

  Collect network intrusion artifacts (e.g., PCAP, domains, URIs, certificates, etc.) and use discovered data to enable mitigation of potential Computer Network Defense incidents

  Analyze identified malicious network activity to determine weaknesses exploited, exploitation methods, effects on system and information

  Collect network device integrity data and analyze for signs of tampering or compromise

  Assist customer 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 engagement

  Requirements

  Required Skills:

  U.S. Citizenship

  Must have an active TS/SCI clearance

  Must be able to obtain DHS Suitability

  8+ years of directly relevant experience in network investigations

  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 - DMZs, WANs, 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 methodologiesExperience with or knowledge of two or more of the following tools: WireShark, Splunk, Snort, Corelight, Suricata, Arkime

  Experience with EDR Tools (Crowdstrike, Carbon Black, Etc)

  Proficiency with virtualized environments

  Proficiency in conducting all-source research.

  Proficiency with carving and extracting information from PCAP data

  Proficiency with non-traditional network traffic (e.g. Command and Control)

  Familiarity with ICS/SCADA protocols

  Familiarity with Python or other scripting languages

  Required Education:

  BS Computer Science, Cybersecurity, Computer Engineering, or related degree; or HS Diploma and 10+ years of network investigation experience

  Desired Certifications:

  GCFA, GCFE, EnCE, CCE, CFCE, CISSP, IASAE II, GCIA, GCIH, CSSP Analyst, CSSP Incident Responder, CEH, SANS GIAC GNFA preferredCompany Overview:

  Node.Digital is an independent Digital Automation & Cognitive Engineering company that integrates best-of-breed technologies to accelerate business impact.

  Our Core Values help us in our mission. They include:

  OUR CORE VALUES

  Identifying theRIGHT PEOPLEand developing them to their full capabilities

  Our customer’s “Mission” is our “Mission”. OurMISSION FIRSTapproach is designed to keep our customers fully engaged while becoming their trusted partner

  We believe inSIMPLIFYINGcomplex problems with a relentless focus on agile delivery excellence

  Our mantra is “SimpleSecureSpeed” in the delivery of innovative services and solutions

  Benefits

  We are proud to offer competitive compensation and benefits packages to include

  Medical

  Dental

  Vision

  Basic Life

  Long-Term Disability

  Health Saving Account

  401K

  Three weeks of PTO

  10 Paid Holidays

  Pre-Approved Online Training

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