Information System Security Officer (ISSO) Senior

General Dynamics Information Technology
Tampa, FL
Public Trust: None
Requisition Type: Regular
Your Impact

Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.

Job Description

Please take this opportunity to join one of GDIT’s fastest long-standing growing programs! US Battlefield Information Collection and Exploitation System eXtended (US BICES-X) is a cutting edge program supporting DoD intelligence information sharing on current and emerging global threats to mission and coalition partners and emerging nations. With an internationally dispersed team supporting each combatant command, the US BICES-X team is in direct support of the war fighter and their missions. We are seeking a creative and driven professional with a passion for solving real world issues on a cross-functional, fast paced team.

Responsibilities:

  • Operate and sustain ACAS services, including Tenable.sc, Nessus Agent and Nessus Network Monitor.
  • Analyze policies and configurations, and evaluate compliance with regulations and directives.
  • Maintain knowledge of applicable policies, regulations and compliance documents specifically related to ACAS.
  • Perform vulnerability assessments and security reviews to identify weaknesses and vulnerabilities within systems that affect the confidentiality, integrity and availability of data.
  • Analyze vulnerability reports and suggest remediation / mitigation plans.
  • Update security tools for monitoring and increase coverage of existing tools.
  • Collect, aggregate, synthesize, analyze and report on data from multiple sources and formats.
  • Provide technical support to system owners to propose mitigation and remediation solutions to identified vulnerability and security issues.
  • Leverage enterprise methodologies and patterns.
  • Develop high level system design diagrams and system documentation.
  • Evaluate, analytically and systematically, problems with workflows, organization and planning and develop appropriate corrective actions.
  • Excellent written and verbal communication skills, with a strong attention to detail and superior ability for problem solving.
  • Skilled at directing a small team and executing responsibilities without direct supervisor.

Required Qualifications:

  • 10+ years of technical experience required.
  • BA/BS required - may substitute additional years of experience
  • A minimum of five (6) years' experience in building, maintaining, and supporting ACAS related technologies: Tenable.sc, Nessus Agent, and Nessus Network Monitor.
  • Experience with data analytics, preferably using Excel.
  • Must possess and maintain a TS/SCI clearance.
  • Must be IAT level II compliant with DoW 8140.
  • ITIL V4 Foundation within six months of hire.
  • Must have completed ACAS Operator and Supervisor course within the last three years.
  • May be required to work evening, weekend, and holiday hours as required.

Preferred Qualifications:

  • Knowledge of how traffic flows across the network (TCP/IP, OSI, ITIL).
  • Skill in conducting vulnerability scans and recognizing vulnerabilities in systems.
  • Developing and presenting briefings to senior leadership

Work Requirements

Years of Experience

10 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Travel Required

Less than 10%

Citizenship

U.S. Citizenship Required

Posted 2026-03-15

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