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Senior Threat Analyst

Computer Office Work

Senior Threat Analyst (DCO)

Sierra Vista


IT/Cyber Security

Top Secret SCI (SSBI) (Tier 5)

Job Description


This position description is subject to change at any time as needed to meet the requirements of the program or company.


Giesler is currently seeking a Senior Threat Analyst to serve in support of the Defensive Cyber Operations (DCO) Division within the RCC-CONUS (RCC-C) is looking for a candidate with strong scripting abilities, experience with systems security administration, and network security technologies. The Senior Threat Analyst (DCO) will design, implement, automate, maintain, and optimize measures protecting systems, networks, and information.

Major Job Activities: 


• Oversee monitor, detect, analyze, and correlate events for potential threat activity utilizing Security Information Event Management (SIEM) systems, Big Data Analytics, and other supporting platforms or applications.
• Lead exploratory and in-depth analysis of network traffic from security devices, analysis of host-based audit logs, malware analysis, trending of cyber incident reports, correlation of classified and open-source threat reporting, and linkages/integration with other DCO agencies.
• Investigate and identify the cause, source, and methodology of compromises or incidents.
• Initiate computer incident handling procedures to isolate and investigate potential network information system compromises.
• Perform trend analysis on events and incidents to identify and characterize threats.
• Conduct open-source research to identify commercial exploits or vulnerabilities (i.e. Zero – Day) required response actions.
• Organize and conduct Cyber hunt missions that include, but are not limited to, examining information systems, network devices, and endpoints for indicators of compromise.
• Prepares formal comprehensive reports and presentations for both technical and executive audiences.
• Configure and optimize software and hardware detection and prevention capabilities.
• Perform host and network base signature development and standardization for implementation on end-point products or sensor grid.
• Develop, document, and refine Tactics, Techniques, and Procedures (TTP).


Material & Equipment Directly Used: 


• Basic Office Equipment.


Working Environment


• Normal office environment.
• May require support during periods of non-traditional working hours including nights or weekend.


Physical Activities: 


• Must be able to lift/push/pull 40 lbs. unassisted.


Education / Certifications: 


• Bachelor of Science (BS) Degree.

• IAT Level II Baseline Certification: CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP.
• Certified Ethical Hacker (CEH).
• GIAC Certified Intrusion Analyst (GCIA).
• ITIL v4 Foundation certification desired upon hire, required within three months of hiring date.

• U.S. citizenship is required.
• Active TS/SCI (Top Secret/Sensitive Compartmentalized Information).


Experience / Skills: 


• 5 years of applicable experience working with various data (network and system) technologies, with a minimum of two of those years focused on information systems security, cyber threats and SIEM event analysis.

• Excellent interpersonal, organization, writing, communicating, and briefing skills.

• Excellent analytical and problem-solving skills.

• ArcSight, AESS, JRSS, IronPort, Security Onion, Gabriel Nimbus BDP.


Supervisory / Budget Responsibilities:  


Acts in a technical based supervisory capacity.


To apply:

  • Send a copy of your resume to

  • "Subject" line of the email should include your name and the position you are applying for

Giesler, LLC is a private corporation established in the State of Georgia, is an Equal Employment Opportunity and Affirmative Action employer. This commitment affirms Giesler LLC’s policy to provide equal employment opportunity in accordance with all applicable Equal Employment Opportunity/Affirmative Action laws, directives and regulations to all employees and qualified applicants without regard to race, ethnicity, color, religion, national origin, sex, age, disability status, pregnancy, sexual orientation, gender identity, genetic information, protected veteran status, or any other protected status under Federal, State or Local law.

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