Job Description

Cyber Network Security Analyst Job Locations US-VA-Arlington Requisition ID 2025-158451 Position Category Cyber Security Clearance Top Secret/SCI Responsibilities Peraton is hiring a Cyber Network Security Analyst for its' Federal Strategic Cyber programs. Location: Arlington, VA As the world's leading mission capability integrator and transformative enterprise IT provider, Peraton delivers trusted and highly differentiated national security solutions and technologies that keep people safe and secure. We serve as a valued partner to essential government agencies across the intelligence, space, cyber, defense, civilian, health, and state and local markets. In this role, you will: 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., NetFlow) 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.).

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Qualifications Minimum Requirements Are: 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/Sourcefire variations and regular expressions (REGEX). Understanding of ICS systems and components that make up an ICS environment Know and explain the different devices and roles they have within an ICS environment Experience analyzing ICS 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. Peraton Overview Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure. Target Salary Range $112,000 - $179,000. This represents the typical salary range for this position based on experience and other factors. EEO EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law. Peraton

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