Cyber Network Defense Analysts - C (Level III - Network Investigations)

Immediate fulltime openings for Cyber Network Defense Analysts (CNDA) with an active Top Secret clearance to support a critical DHS customer mission. This opportunity provides onsite advanced Cyber Defense, rapid 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 hunting for malicious cyber activity.

This is a HYBRID position and it is expected they will need to be onsite 2-3 days with a 2-hour onsite reporting requirement. The onsite requirement is set by the customer based on mission requirements.


- 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
- Assists with the writing and publishing of Computer Network Defense guidance and reports on incident findings to appropriate constituencies
- 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

- Must be US Citizen due to government requirement.
- Must have an active TS clearance or higher, and SCI eligible.
- Must be able to obtain DHS Suitability.
- BS Computer Science, Cyber Security, Computer Engineering, or related degree and 5+ years of network investigations; OR HS Diploma & 7+ years of network investigations experience.
- 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 Wi-Fi 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)
- 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 travel domestically on short notice
- Must be able to work collaboratively across physical locations

Desired Certifications
- DoD 8140.01 IAT Level II, IASAE II, CSSP Analyst, GCIA, GCIH, CSSP Analyst/CSSP Incident Responder

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Arlington, VA



Anticipated Start Date

Monday, August 1, 2022

Job Type

Direct Hire

Anticipated Duration


Date Posted

Thursday, July 7, 2022

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Elite Technical Services, Inc. participates in the E-Verify program to confirm the employment eligibility of all persons hired. This means that we will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS), with information from each new employee's Form I-9 to confirm work authorization. Elite Technical Services, Inc. will not use E-Verify to pre-screen job applicants.

Elite Technical Services, Inc. is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.