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Cyber Network Security Analyst at Peraton Arlington, VA
Job in
Arlington, Arlington County, Virginia, 22201, USA
Listed on 2026-06-23
Listing for:
Itlearn360
Full Time
position Listed on 2026-06-23
Job specializations:
-
IT/Tech
Cybersecurity, Network Security
Job Description & How to Apply Below
Cyber Network Security Analyst – Peraton
Location:
Arlington, VA.
Peraton is hiring a Cyber Network Security Analyst for its Federal Strategic Cyber programs.
Responsibilities- Perform technical analysis on a wide range of cybersecurity issues, with a focus on network activity and data; this includes, but is not limited to network flow (i.e., Net Flow) or related forms of session summary data, signature-based IDS alert/event data, full packet capture (PCAP) data, proxy, and application server logs (various types).
- Triage IDS alerts, collect related data from various network analysis systems, review available open and closed source information on related threats & vulnerabilities, diagnose observed activity for likelihood of system infection, compromise, or unintended/high-risk exposure.
- Prepare analysis reports detailing background, observables, analysis process & criteria, and conclusions.
- Analyze large volumes of network flow data for specific patterns/characteristics or general anomalies, to trend network activity and to correlate flow data with other types of data or reporting regarding enterprise-wide network activity.
- Leverage lightweight programming/scripting skills to automate data-parsing and simple analytics.
- Document key event details and analytic findings in analysis reports and incident management systems.
- Identify, extract, and characterize network indicators from cyber threat intelligence sources, incident reporting and published technical advisories/bulletins.
- Assess cyber indicators/observables for technical relevance, accuracy, and potential value/risk/reliability in monitoring systems.
- Recommend detection and prevention/mitigation signatures and actions as part of a layered defensive strategy leveraging multiple capabilities and data types.
- Develop IDS signatures, test, and tune signature syntax, deploy signatures to operational sensors, and monitor and tune signature and sensor performance.
- Fuse open-source threat & vulnerability information with data collected from sensors across the enterprise into cohesive and comprehensive analysis.
- Provide technical assessments of cyber threats and vulnerabilities.
- Communicate and collaborate with analysts from other SOC organizations to investigate cyber events.
- Produce final reports and review incident reports from junior analysts.
- Monitor and report on trends and activity on network sensor platforms.
- Produce and update technical analysis documentation (processes, procedures, analysis criteria, report templates, etc.).
- 6 years related technical experience.
- Working knowledge of security concepts, protocols, processes, architectures, and tools (vulnerabilities, threats and exploitation, authentication & access control technologies, threat intelligence data and sources, WHOIS and DNS referential data and sources, intrusion detection/prevention capabilities, network traffic analysis, SIM technology, incident handling, media/malware analysis, etc.).
- Working knowledge of networking concepts, protocols, and architectures (OSI-model, TCP/IP, major application protocols such as DNS/ LAN/WANs, VPNs, routers/routing, addressing, etc.).
- Detailed knowledge of intrusion detection engines, capabilities, and signature formats in general, with a specific focus on Snort/Source fire variations and regular expressions (REGEX).
- Understanding of IC S systems and components that make up an IC S environment.
- Know and explain the different devices and roles they have within an IC S environment.
- Experience analyzing IC S Network traffic with various tools (Wireshark, Bro/Zeek, etc.).
- Knowledge of cyber policy & issues, the global cyber community, roles of major organizations how they interrelate and interact, and challenges in these structures.
- Analyze host forensic data for possible malicious activity.
- Analyze a variety of OT, host, and network logs to determine intent.
- Utilize an OT network Sensor for network investigations.
- Awareness of the common cyber products and services, an understanding of their limitations, and a comprehensive understanding of the disciplines of cybersecurity.
- Demonstrated ability to be innovative in solving problems and providing solutions.
- Ability to produce results in a fast-paced environment with the ability to meet iterative deadlines.
- U.S. citizenship required.
- An active Top Secret security clearance with SCI eligibility required.
- In addition, selected candidate must be able to obtain and maintain a favorably adjudicated DHS background investigation (EOD) for continued employment.
$112,000 – $179,000.
EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.
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