Arsiem

IT consulting and cybersecurity for governments

Network Based Systems Analyst 3

Security Operations & Incident ResponseConfirmed live in the last 24 hours

Full-timeArlington County, Arlington, VA, USANo salary listed

About the Job

Requirements

A bachelor's degree in Computer Science, Cyber Security, Computer Engineering, or a related field, or a high school diploma and 7–9 years of network investigations experience.
At least 5 years of direct relevant experience in cyber defense analysis using leading-edge technologies and industry-standard cyber defense tools.
Experience developing and deploying signatures.
Experience detecting host- and network-based intrusions using intrusion detection technologies such as 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 such as Snort signatures.
Experience performing packet-level analysis.
Experience conducting trend analysis.
An active TS/SCI clearance and the ability to obtain DHS Entry on Duty Suitability.

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 history, status, and potential impact, for further action.
Perform cyber defense trend analysis and reporting.
Correlate events using information gathered from varied enterprise sources to gain situational awareness and assess 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 enterprise sources and determine possible causes.
Detect, identify, and alert stakeholders to attacks, intrusions, anomalous activities, and misuse, distinguishing incidents from benign activity.
Use cyber defense tools for continuous monitoring and analysis of system activity to detect malicious activity.
Analyze malicious activity to determine exploited weaknesses, exploitation methods, and effects on systems and information.
Determine tactics, techniques, and procedures for intrusion sets.
Examine network topologies to understand network data flows.
Identify and analyze network traffic anomalies using metadata.
Research, analyze, and correlate data across a wide variety of source datasets, including indications and warnings.
Validate intrusion detection system alerts against network traffic using packet analysis tools.
Identify network-device applications and operating systems from network traffic.
Reconstruct malicious attacks or activity from network traffic.
Identify network mapping and operating-system fingerprinting activities.
Assist in constructing signatures for cyber defense network tools in response to new or observed threats.
Notify designated managers, cyber incident responders, and cybersecurity service-provider team members of suspected incidents, and communicate incident history, status, and potential impact in accordance with the incident response plan.
Prepare and update manuals, instructions, and operating procedures.
Evaluate established methods and procedures and recommend changes where appropriate.
Plan and execute complex assignments and develop methods, approaches, and procedures.
Analyze complex specialty-area issues and recommend resolutions.
Ensure optimal use of commercially available products.
Prepare and present reports.
Evaluate the effectiveness of installed systems and services.

Desired Qualifications

Experience with GSEC (SANS401), ArcSight or another SIEM solution, Network+, Security+, and Python programming.
A strong math and science background.
Experience with the Carnegie Mellon SiLK tool suite.
GNFA, GCIH, GCIA, GSEC, CASP+, CySA+, PaLMS, and FedVTE.

About ARSIEM Corporation

At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. We provide support to multiple agencies across the United States Government. ARSIEM has an experienced workforce of qualified professionals committed to providing the best possible support.

As demand increases, ARSIEM continues to provide 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 impact on every client you work with.

ARSIEM is looking for a Cyber Network Defense Analyst to monitor network activity and identify and report events that occur, or might occur, within the network, in order to protect information, information systems, and networks from threats. CNDAs review data collected to analyze cyber events and the network environment, identifying trends, patterns, or anomaly correlations that indicate more serious attacks or future threats. The CNDAs will recommend proactive measures to contain the incident. These proactive measures include, but are not limited to, identifying intruders, local changes/suspect interactions; isolation; in-depth digital media analysis; consultation with law enforcement or counterintelligence organizations; development of signatures to detect this malicious behavior; and development and deployment of eradication tools. This position will support one of our Government clients in Arlington, VA.

Responsibilities

The majority of the CNDA's time (75%) will be spent executing the following tasks:
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 the event's history, status, and potential impact for further action) that may cause ongoing and immediate impact on 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 attacks/intrusions, anomalous activities, and misuse activities, and distinguish these incidents and events from benign activities.
Utilize cyber defense tools for continuous monitoring and analysis of system activity to detect malicious activity.
Analyze identified malicious activity to determine weaknesses exploited, exploitation methods, effects on the system, and information.
Determine tactics, techniques, and procedures (TTPs) for intrusion sets
Examine network topologies to understand data flows through the network
Identify and analyze anomalies in network traffic using metadata
Conduct research, analysis, and correlation across a wide variety of all source data sets (indications and warnings)
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 within the network environment or enclave
Notify designated managers, cyber incident responders, and cybersecurity service provider team members of suspected cyber incidents and articulate the event's history, status, and potential impact for further action in accordance with the organization's cyber incident response plan
Approximately 25% of the CNDA's time will be spent executing the following tasks:
Prepare and update manuals, instructions, and operating procedures
Evaluate established methods and procedures and prepare recommendations for changes in methods and practices where appropriate.
Plan and execute challenging and complex assignments, and develop innovative methods, approaches, and procedures.
Conduct analyses and recommend resolutions for complex issues affecting the specialty area.
Ensure optimal use of commercially available products
Prepare and present reports
Evaluate the effectiveness of installed systems and services

Minimum Qualifications

BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 7-9 years of network investigations experience.
5+ 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

Preferred Qualifications

GSEC (SANS401), ArcSight (or other SIEM solution), Network+, Security+, and Python programming experience would be ideal.
Strong math and science background.
Experience with the Carnegie Mellon SiLK tool suite.
GNFA, GCIH, GCIA, GSEC, CASP+, CySA+, PaLMS, FedVTE

Clearance Requirement: This position requires an Active TS/SCI clearance and the ability to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability.

Candidate Referral: Do you know someone who would be GREAT at this role? If you do, ARSIEM 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 placed on one of our projects. The bonus for this position is $3,500, and the referrer is eligible to receive the sum for any applicant we place within 12 months of referral. The bonus is paid after the referred employee reaches 6 months of employment.

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

About the Company

Arsiem

IT consulting and cybersecurity for governments

ARSIEM Corporation provides advanced IT consulting services, specializing in multiple areas including cybersecurity, enterprise architecture and development, and applications development, predominantly for government clients. The firm is distinguished by its deep commitment to cybersecurity and robust IT solutions that ensure enhanced protection and efficient digital infrastructures. This commitment to leveraging cutting-edge technologies in specialized areas of IT makes ARSIEM Corporation an excellent workplace for professionals aiming to actively contribute to significant, high-impact projects within the government sector.

Company size: 11-50
Company stage: Not listed
Total funding: Not listed
Headquarters: Baltimore, Maryland
Founded: 2013

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