TS/SCI Cyber Security Engineer
Job in
San Antonio, Bexar County, Texas, 78208, USA
Listed on 2026-02-21
Listing for:
Insight Global
Full Time
position Listed on 2026-02-21
Job specializations:
-
IT/Tech
Cybersecurity, Systems Engineer, Security Manager, Network Security
Job Description & How to Apply Below
CANDIDATES MUST HAVE AN ACTIVE TOP-SECRET SCI SECURITY CLEARANCE TO BE CONSIDERED FOR THIS ROLE!!
Position: TS/SCI SIEM Cyber Security EngineerLocation:
ONSITE in San Antonio, TX at JBSA-Lackland Salary: $,000/year (depending on experience) Required
Skills & Experience:
- Active Top-Secret SCI (TS/SCI) security clearance
- Active GIAC Machine Learning Engineer (GMLE) certification or a bachelor's degree in computer science
- 2-3+ years of experience using SIEM technology (Arc Sight, Splunk, and/or ELK) for log handling, reports, filters, rule creation, etc.
- 2-3+ years of network traffic analysis experience (understanding protocols and identifying ports)
Skills & Experience:
- Experience with DoD (Air Force, Navy, Army, etc.) Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS)
- Experience with MITRE ATT&CK framework
- Experience with Security, Orchestration, Automation, and Response (SOAR) platforms such as Phantom or Demisto
- Experience with Python and Power Shell
Insight Global is seeking a SIEM Cyber Security Engineer to support a critical mission focused on detecting, analyzing, and responding to cyber threats across a large enterprise environment. This role plays a key part in improving security visibility, reducing false positives, and ensuring early detection of malicious activity through effective SIEM content and automation.
Key responsibilities include:
- Analyze cyber defense (DCO) events and security logs to identify malicious or suspicious activity
- Apply current industry SIEM best practices to improve detection accuracy and overall performance
- Correlate security alerts with enriched log data to distinguish legitimate threats from false positives
- Monitor and assess the effectiveness of security controls, including identifying unauthorized outbound connections
- Develop and maintain SIEM detections and use cases through enterprise‑wide log analysis
- Build dashboards and visualizations that highlight adversary behavior and security trends
- Create virtual “tripwires” using log data to enable early threat detection
- Design, implement, test, and tune SIEM solutions to optimize performance and reliability
- Build, test, and validate SIEM rules, filters, and correlation logic
- Continuously tune SIEM content to reduce noise caused by known behavior, false positives, and system errors
- Analyze malware threats and develop behavior‑based detections to alert on or prevent malicious activity
- Automate SIEM tasks using scripting or programming languages
- Create scheduled and ad‑hoc reports using SIEM tools to support operational and compliance needs
- Develop and maintain SIEM documentation, processes, and knowledge repositories
- Track metrics and trends to measure detection effectiveness and improve mission outcomes
- Support operational leadership with SIEM content development and reporting needs
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