Intrusion Analyst - ( TS/SCI FS Poly Required)

Welsh and Associates
San Antonio, Texas 78208 United States  View Map
Posted: Jun 08, 2026
  • Full Time
  • Federal Government
  • Summary

    Intrusion Analyst

    Location: San Antonio, TX Salary: $144,000 Clearance Required: Active TS/SCI with Full Scope Polygraph Employment Type: Full-Time

    We are seeking an Intrusion Analyst 3 opportunity supporting advanced cyber defense operations within a highly classified environment.

    This role focuses on identifying, analyzing, and documenting malicious or unauthorized activity across digital networks using SIGINT and computer network defense resources. You will play a key role in detecting adversarial tactics and supporting mitigation strategies.

    Core Responsibilities

    • Analyze digital network data to detect malicious activity
    • Categorize traffic as benign, suspicious, or malicious
    • Document adversary tactics, techniques, and procedures (TTPs)
    • Develop mitigation strategies
    • Produce intelligence reporting from metadata analysis

    Qualifications

    • Experience analyzing network and host-based security events
    • Strong understanding of adversary tradecraft
    • Ability to operate within classified production environments
  • Job Description

    Intrusion Analyst

    Location: San Antonio, TX Salary: $144,000 Clearance Required: Active TS/SCI with Full Scope Polygraph Employment Type: Full-Time

    We are seeking an Intrusion Analyst 3 opportunity supporting advanced cyber defense operations within a highly classified environment.

    This role focuses on identifying, analyzing, and documenting malicious or unauthorized activity across digital networks using SIGINT and computer network defense resources. You will play a key role in detecting adversarial tactics and supporting mitigation strategies.

    Core Responsibilities

    • Analyze digital network data to detect malicious activity
    • Categorize traffic as benign, suspicious, or malicious
    • Document adversary tactics, techniques, and procedures (TTPs)
    • Develop mitigation strategies
    • Produce intelligence reporting from metadata analysis

    Qualifications

    • Experience analyzing network and host-based security events
    • Strong understanding of adversary tradecraft
    • Ability to operate within classified production environments
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