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

    • Node.Digital
  • Arlington, VA
  • Posted 28 days ago | Updated 6 days ago


On Site
Full Time


Information systems
Incident management
Intrusion detection
Threat analysis
Security clearance
Dragon NaturallySpeaking
Secure Shell
Server Message Block
Wireless communication
Computer networking
Network security
Meta-data management
Data flow
Network analysis
Standard operating procedure
Computer science
Cyber security
Computer engineering
Certified Ethical Hacker
Online training

Job Details

Network-Based Systems Analysts / Cyber Network Defense Analysts (CNDA)

Location: Arlington, VA

Must have an active Top Secret Security Clearance

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.

- 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 action 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, URIs, 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:

- U.S. Citizenship
- Must have an active TS/SCI clearance

- Must be able to obtain DHS Suitability
- 5+ 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 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

Required Education:

BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 7-9 years of network investigations experience.

Desired Certifications:

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

Company 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:


Identifying the~RIGHT PEOPLE~and developing them to their full capabilities

Our customer's "Mission" is our "Mission". Our~MISSION FIRST~approach is designed to keep our customers fully engaged while becoming their trusted partner

We believe in~SIMPLIFYING~complex problems with a relentless focus on agile delivery excellence

Our mantra is "~Simple*Secure*Speed~" in the delivery of innovative services and solutions.


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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