Jobloria
L2 Network Based Systems Analyst
Base-One Inc
Location : Chantilly, VA, 20151
Job Type : Contractor
Date Posted : 2 December 2025
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Responsibilities:
· Characterize and analyze network traffic to identify anomalous activity and potential threats to network resources
· Coordinate with enterprise-wide cyber defense staff to validate network alerts
· Document and escalate incidents (including event's history, status, and potential impact for further action) that may cause ongoing and immediate impact to the environment
· Perform cyber defense trend analysis and reporting
· Perform event correlation using information gathered from a variety of sources within the enterprise to gain situational awareness and determine the effectiveness of an observed attack
· Provide daily summary reports of network events and activity relevant to cyber defense practices
· Receive and analyze network alerts from various sources within the enterprise and determine possible causes of alerts
· Provide timely 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 methods, effects on 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 off network traffic
· Identify network mapping and operating system (OS) fingerprinting activities
· Assist 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 enclave
Required Skills/Clearances:
U.S. Citizenship
Active TS/SCI clearance
Ability to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability
· 2+ years of direct relevant experience in cyber defense analysis using leading edge technologies and industry standard cyber defense tools
· Experience successfully developing and deploying signatures
· Experience detecting host and network-based intrusions via intrusion detection technologies (e.g., Snort)
· Experience implementing incident handling methodologies
· Experience implementing protocol analyzers
· Experience collecting data from a variety of cyber defense resources
· Experience reading and interpreting signatures (e.g. snort)
· Experience performing packet-level analysis
· Experience conducting trend analysis
Desired Skills:
· Python programming experience
· Strong math and science background
· Experience with Carnegie Mellon SiLK tool suite
Required 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, FedVTE
· GSEC (SANS401), Arcsight (or other SEIM solution), Network+, Security+
Freqently Asked Questions
Professionals in Chantilly aiming for L2 Network Based Systems Analyst roles need proficiency with intrusion detection systems like Snort, protocol analyzers, and SIEM solutions such as ArcSight. Mastery of signature development and packet-level analysis tools is crucial for identifying sophisticated network threats effectively.
An L2 Network Based Systems Analyst spends the day analyzing network traffic for anomalies, coordinating with cyber defense teams, and escalating incidents. Routine tasks involve event correlation, trend reporting, and signature construction, ensuring continuous monitoring to safeguard network integrity.
Starting as an L2 Network Based Systems Analyst opens pathways to senior cyber defense roles, network architect positions, or security operation center leadership. Gaining advanced certifications like GCIH or GSEC and developing scripting skills can accelerate advancement in the cybersecurity domain.
Base-One Inc values certifications such as GNFA, GCIH, GCIA, and GSEC for L2 Network Based Systems Analysts, which demonstrate expertise in cyber defense and threat detection. Candidates with these credentials often have an advantage in their selection process due to alignment with company security standards.
At Base-One Inc, the L2 Network Based Systems Analyst role demands active TS/SCI clearance and DHS suitability, emphasizing high trust and access levels. The company integrates cutting-edge cyber defense tools and expects analysts to contribute signature development and deep threat analysis, reflecting a rigorous security environment.
Chantilly's proximity to federal agencies drives strong demand for cleared cybersecurity professionals, making L2 Network Based Systems Analyst roles competitive. Employers prioritize candidates with active clearances and hands-on experience, especially those familiar with local government cyber defense protocols.
Due to Chantilly's higher living expenses near D.C., L2 Network Based Systems Analysts with active clearances typically command salaries above the national average, often ranging from $90,000 to $120,000 annually, reflecting the specialized skills and clearance requirements.
Salaries for L2 Network Based Systems Analysts in Chantilly generally fall between $95,000 and $115,000 yearly, influenced by clearance level, certifications, and experience. This range aligns with regional market demand for cybersecurity roles requiring TS/SCI clearances.
Base-One Inc encourages continuous learning, offering resources and projects that enable L2 Network Based Systems Analysts to refine Python scripting. This focus supports automation and advanced analysis, essential for staying current in cyber defense methodologies.
Applicants at Base-One Inc typically undergo technical assessments involving real-world packet analysis, signature reading, and anomaly detection scenarios. This hands-on evaluation ensures candidates possess the applied expertise required for effective cyber threat identification.
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