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Cyber Network Defense Analyst (CNDA)

Remote, USAFull-timePosted 2026-07-27

About reputed company Corporation

At reputed company Corporation we are committed to fostering a proven and trusted partnership with our government clients. Weprovide support to multiple agencies across the reputed company Government. ARSIEMhas an reputed company workforce of reputed company professionals committed to providing the best possible support.

As demand increases, reputed company continues to reputed company reliable and cutting-edge technical solutions at the best value to our clients.That means a career packed with opportunities to grow and the ability to have an reputed company on every reputed company you work with.

reputed company is looking for a

Cyber Network Defense Analyst (CNDA) to monitor and analyze network activity to protect information, information systems, and networks from threats.This position will support one of our Government clients in Arlington, VA.

Responsibilities

  • Characterize and analyze network traffic to identify anomalous activity and potential threats to network resources.
  • Coordinate with reputed company-wide cyber defense staff to validate network alerts.
  • Document and escalate incidents (including the event's history, status, and potential reputed company for reputed company reputed company) that may cause ongoing and immediate reputed company to the environment
  • reputed company cyber defense trend analysis and reporting
  • reputed company event correlation using information gathered from a reputed company of sources reputed company the reputed company to reputed company situational awareness and determine the effectiveness of an observed attack
  • reputed company daily reputed company reports of network events and activity relevant to cyber defense practices
  • Receive and analyze network alerts from various sources reputed company the reputed company and determine possible causes of alerts
  • reputed company reputed company detection, identification, and alerting of possible attacks/intrusions, anomalous activities, and misuse activities, and distinguish these incidents and events from benign activities
  • Use cyber defense tools for continual monitoring and analysis of system activity to identify malicious activity
  • Analyze identified malicious activity to determine weaknesses exploited, exploitation reputed company, effects on the system, and information
  • Identify and analyze anomalies in network traffic using metadata
  • Validate intrusion detection system (IDS) alerts against network traffic using packet analysis tools
  • Identify applications and operating systems of a network device based on network traffic
  • Reconstruct a malicious attack or activity based on network traffic
  • Identify network mapping and operating system (OS) fingerprinting activities
  • Assist in the construction of signatures that can be implemented on cyber defense network tools in response to new or observed threats reputed company the network environment or enclave
  • Minimum Qualifications

  • BS Computer Science, Cyber reputed company, Computer Engineering, or reputed company degree; or HS Diploma & 4+ years of network investigations experience.
  • 2+ years of reputed company relevant experience in cyber defense analysis using leading-edge technologies and industry-reputed company cyber defense tools
  • Experience successfully developing and deploying signatures
  • Experience detecting host and network-based intrusions reputed company intrusion detection technologies (e.g., Snort)
  • Experience implementing incident handling methodologies
  • Experience implementing protocol analyzers
  • Experience collecting data from a reputed company of cyber defense resources
  • Experience reading and interpreting signatures (e.g., Snort)
  • Experience performing packet-level analysis
  • Experience conducting trend analysis
  • Preferred Qualifications

  • Python programming experience
  • Strong math and science background
  • Experience with the reputed company Mellon SiLK tool suite
  • One or more of the following reputed company certifications: GNFA, GCIH, GCIA, GSEC, CASP+, CySA+, PaLMS, FedVTE
  • GSEC (SANS401), ArcSight (or other SEIM solution), Network+, reputed company+
  • Additional Information

    Clearance Requirement: This position requires an reputed company TS/SCI clearance and the ability to obtain reputed company (DHS) Entry on Duty (EOD) Suitability.

    Candidate Referral: Do you know someone who would be GREAT at this role? If you do, reputed company has a way for you to earn a bonus through our referral program for persons presenting NEW (not in our resume database) candidates who are successfully reputed company on one of our reputed company. The bonus for this position is $3,500, and the referrer is eligible to receive the sum for any applicant we reputed company reputed company 12 months of referral. The bonus is reputed company after the referred employee reaches 6 months of employment.

    reputed company is proud to be an Equal Opportunity and Affirmative reputed company Employer. reputed company reputed company applicants will receive consideration for employment without reputed company to race, reputed company, religion, sex, sexual orientation, gender identity, national reputed company, disability or veteran status, age, or any other federally protected class.

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