Network Systems Analyst - II
Job in
Arlington, Arlington County, Virginia, 22201, USA
Listing for:
Beyond SOF
Full Time
position
Listed on 2025-12-27
Job specializations:
-
IT/Tech
Cybersecurity, Network Security, Information Security
Job Description & How to Apply Below
Network Based Systems Analyst - II
The client provides remote and onsite advanced technical assistance, proactive hunting, rapid 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 hunting for malicious cyber activity. We are 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:
Characterize and analyze network traffic to identify anomalous activity and potential threats to network resourcesCoordinate with enterprise-wide cyber defense staff to validate network alertsDocument and escalate incidents (including event's history, status, and potential impact for further action) that may cause ongoing and immediate impact to the environmentPerform cyber defense trend analysis and reportingPerform event correlation using information gathered from a variety of sources within the enterprise to gain situational awareness and determine the effectiveness of an observed attackProvide daily summary reports of network events and activity relevant to cyber defense practicesReceive and analyze network alerts from various sources within the enterprise and determine possible causes of alertsProvide timely detection, identification, and alerting of possible attacks/intrusions, anomalous activities, and misuse activities and distinguish these incidents and events from benign activitiesUse cyber defense tools for continual monitoring and analysis of system activity to identify malicious activityAnalyze identified malicious activity to determine weaknesses exploited, exploitation methods, effects on system and informationIdentify and analyze anomalies in network traffic using metadataValidate intrusion detection system (IDS) alerts against network traffic using packet analysis toolsIdentify applications and operating systems of a network device based on network trafficReconstruct a malicious attack or activity based off network trafficIdentify network mapping and operating system (OS) fingerprinting activitiesAssist in the construction of signatures which can be implemented on cyber defense network tools in response to new or observed threats within the network environment or enclaveRequired Skills/Clearances:
U.S. CitizenshipActive TS/SCI clearanceAbility to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability2+ years of direct relevant experience in cyber defense analysis using leading edge technologies and industry standard cyber defense toolsExperience successfully developing and deploying signaturesExperience detecting host and network-based intrusions via intrusion detection technologies (e.g., Snort)Experience implementing incident handling methodologiesExperience implementing protocol analyzersExperience collecting data from a variety of cyber defense resourcesExperience reading and interpreting signatures (e.g. snort)Experience performing packet-level analysisExperience conducting trend analysisDesired
Skills:Python programming experienceStrong math and science backgroundExperience with Carnegie Mellon SiLK tool suiteRequired
Education:BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 4+ years of network investigations experience.
Desired
Certifications:One or more of the following professional certifications: GNFA, GCIH, GCIA, GSEC, CASP+, CySA+, PaLMS, FedVTEGSEC (SANS
401), Arcsight (or other SEIM solution), Network+, Security+#J-18808-Ljbffr
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