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CSOS Analyst - Tier III
CSOS Analyst - Tier III-March 2024
St. Louis
Mar 29, 2026
About CSOS Analyst - Tier III

  CSOS Analyst - Tier III

  Job Category: Information Technology

  Time Type: Full time

  Minimum Clearance Required to Start: TS/SCI

  Employee Type: Regular

  Percentage of Travel Required: Up to 10%

  Type of Travel: Local

  CACI IS THE WINNER!!! of a long-term prime contract with the National Geospatial-Intelligence Agency (NGA) for Transport & Cybersecurity Services (TCS) contract. The functional capabilities are to provide the information technology (IT) infrastructure services required to deliver timely, relevant, and accurate support of national security. TCS will provide innovative design, engineering, procurement, implementation, operations, sustainment, and disposal of transport and cybersecurity IT services on multiple networks and security domains, at multiple locations worldwide to support the NGA mission.

  In this role, we're seeking a CSOS Analyst - Tier III located in Springfield, VA .

  What You’ll Get to Do:

  Coordinate and implement tasks, performing analysis, and building/documenting response activities required during cyber security incident response, including but not limited to actions such as implementing containment measures, IP blocks, domain blocks, and disabling user accounts on the direction of the Government.

  Coordinates with Security and Installations Directorate (SI) Office of Counterintelligence (SIC), Insider Threat Office (SIII), in addition to other law enforcement and counterintelligence personnel as required to perform advanced investigation and triage of incidents

  Collaborates with appropriate authorities in the production of security incident reports

  Categorizes incidents and events

  Coordinates with other contracts, organizations, activities, and other services as appropriate to ensure incidents are properly reported, contained, and eradicated

  Coordinates with other contracts, organizations, activities, and other services as appropriate to de-conflict blue/red team activity with open incidents/events

  Coordinates with other contracts, organizations, activities, and services to ensure NGA recovers from an incident/event

  Builds timelines, documents, briefings, and other products as required to inform stakeholders of incident response actions, analysis, and the impact of both adversary activity and blue force response actions.

  Documents actions taken and analysis in the authorized ticketing system to a level of detail where the actions taken and analysis are capable of being systematically reconstructed

  More About the Role:

  Develops and when approved by the Government generates and updates reports in the Joint Incident Management System (JIMS), Incident Case Management System (ICMS), and/or other authorized reporting systems as directed

  Develops, maintains, sustains, and when properly authorized by the Government executes custom scripts, tools, and capabilities to collect and analyze data, and respond to incidents/events

  Performs digital media analysis on host, server, and network data as required to analyze and respond to an incident, including but not limited to volatile and non-volatile memory and/or system artifact collection and analysis

  Develop and identify indicators of compromise to send to Cybersecurity stakeholders and other Contract Services

  Provides adversary attribution

  Performs malware analysis and signature development

  Coordinate with CSOC Tier 1 and 2 services to remediate all discrepancies and provide recommendations to prevent reoccurrence

  You’ll Bring These Qualifications:

  Bachelor's Degree and or 6 years experience in Cyber Security (CSOS)

  Active TS/SCI, ability to obtain a polygraph

  DoDD 8140.01 and DoD 8570.01-M IAT Level II and CSSP Incident Responder.Provides input to and coordinates with all applicable stakeholders to develop and deliver the daily CSOC Significant Activity Report, the daily CSOC Operations Update, and the Weekly CSOC Status Report

  Serve as C-IRT members as required and serve under the direct control of, and take direction from, the Government C-IRT Commander

  Develop and coordinate courses of action with various Government and contract stakeholders, and when properly authorized by the Government, execute Defensive Cyberspace Operations-Internal Defensive Measures on behalf of the NGA on NGA networks and systems

  Performs digital media analysis and malware reverse engineering on host, server, and network data as required to analyze and respond to an incident, including but not limited to volatile and non-volatile memory and/or system artifact collection and analysis.

  When properly authorized by the Government, execute custom scripts, tools, and capabilities to collect and analyze data, and respond to incidents/events

  Develops, documents, and provides the Government incident investigation reports which include sufficient information to document the entire lifecycle of the incident and the response, including but not limited to adversary and friendly forces activity, host and network analysis, timelines, and recommendations for corrective actions, recommendations for new Tactics, Techniques, and Procedures (TTP) and other recommendations as appropriate, within 30 days of C-IRT stand-down.

  Conduct Quality Control reviews of a percentage of closed CSOC Tier 2 tickets each week to ensure proper analysis, categorization, documentation, and notification

  These Qualifications Would be Nice to Have:

  Masters degree

  IAT III

  What We Can Offer You:

  We’ve been named a Best Place to Work by the Washington Post.

  Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives.

  We offer competitive benefits and learning and development opportunities.

  We are mission-oriented and ever-vigilant in aligning our solutions with the nation’s highest priorities.

  For over 60 years, the principles of CACI’s unique, character-based culture have been the driving force behind our success.

  Company Overview: At CACI, you will have the opportunity to make an immediate impact by providing information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. CACI is an Equal Opportunity/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, status as a protected veteran, or any other protected characteristic.

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