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Information Assurance Security Engineer

Job in Arnold, Jefferson County, Missouri, 63010, USA
Listing for: General Dynamics Information Technology, Inc.
Full Time position
Listed on 2026-10-04
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security & Data Protection, Network Security, Systems Engineer
Salary/Wage Range or Industry Benchmark: 115600 - 156400 USD Yearly USD 115600.00 156400.00 YEAR
Job Description & How to Apply Below

Type of

Requisition :
Regular Clearance Level Must Currently Possess:
Top Secret/SCI Clearance Level Must Be Able to Obtain:
Top Secret SCI + Polygraph Public Trust/Other

Required:

None Job Family:
Cyber and IT Risk Management

Job Qualifications:

Skills:

Information System Security, Security Infrastructure, Security Tools

Certifications:

None

Experience:

5 + years of related experience US Citizenship

Required:

Yes

Job Description

Transform technology into opportunity as an Information Assurance Security Engineer with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you'll be at the forefront of innovation and play a meaningful part in improving how agencies operate. At GDIT, people are our differentiator. As an Information Assurance Security Engineer, you will help ensure today is safe and tomorrow is smarter.

Our work depends on a TS/SCI cleared Information Security Engineer joining our team to support our intelligence customer in Springfield, VA or Arnold, MO. HOW AN INFORMATION ASSURANCE SECURITY ENGINEER WILL MAKE AN IMPACT

Position Summary

General Dynamics Information Systems (GDIT) is seeking a Security Engineer to provide expert technical services on all aspects of Information Security. Responsible for writing information security policy drafts, writing and reviewing Memorandum of Agreements and coordinating and managing all aspects of the Certification and Accreditation. Advise and assess system design/architecture as well as defining, designing and evaluating information security systems. Manage multi-agency information sharing and integration security.

Maintain affiliations with high-level personnel at multiple agencies and organizations involved in Information Security. Tasking includes incident response, system access approval, audit log review, Configuration Control Board and daily consultations/consulting on a wide variety of security issues. Report, document and investigate all security related incidents; assist with development and implementation of corrective measures.

  • Act as the representative of the Information System Security Manager ensuring compliance with IS security procedures.
  • Support efforts to operate, maintain, and dispose of information system materials in accordance with security directives, policies and practices and as annotated in Systems Security Plans.
  • Generate and implementation of requisite security training ensuring user security awareness of responsibilities prior to system access.
  • Initiate protective and corrective measures when incident or vulnerabilities are discovered.
  • Ensure IA hardware and software complies with security configuration guides.
  • Implement and enforce IA policies and procedures as defined by A&A documentation.
  • Ensure users are aware of their IA responsibilities.
  • The ability to work on multiple projects/tasks at once and operate in a dynamic, fast-paced, team-oriented environment.
  • Perform Operations & Sustainment (O&S) functions for the NCE network security infrastructure (firewalls, web gateways, mail gateways, ids, load balancers, performance monitoring tools, mgt systems, etc)
  • Perform maintenance and/or advanced configuration of equipment in order to protect the network from emerging cyber threats
  • Experience with Cloud Infrastructure/AWS-based technology
  • Experience using security tools such as ACAS, HBSS, Carbon Black, Tanium, Red Seal, and EMET
  • Conduct forensic traffic/log analysis to isolate issues or respond to analyst alerts
  • Respond to escalated troubleshooting requests
  • Maintain and administer network infrastructure standards, documentation and fault tolerance
  • Present Monitoring/Test Results and Reports as required
  • Perform/support integration testing as required
  • Participates in special projects as required.
  • Ability to review Plan of Action and Milestones (POA&Ms) and conduct a technical decomposition categorization, remediation, and lien resolution
  • Execute remediation process to implement technical solutions to address vulnerability findings via ACAS security scan.
  • Experience installing, hardening, deploying, documenting, and troubleshooting network perimeter security technologies.
  • Experience and scripting ability on Unix and/or RHEL OS
  • Experienced with complex Microsoft macros, and Power Shell scripts
  • Basic understanding of Windows Enterprise AD architecture and VMWare Virtualization
  • Must be proficient in network routing/vlan technology
Unique/Additional Requirements

Candidate must have knowledge of and experience with ICD 503 and be…

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