Information Systems Security Officer (ISSO)

Responsibilities for this Position

Information Systems Security Officer (ISSO)

ID: 2026-73574
US-MA-Pittsfield
Required Clearance: Top Secret, obtainable within reasonable time based on requirements
Posted Date: 8/3/2026
Category: Information Technology
Employment Type: Full Time
Hiring Company: General Dynamics Mission Systems, Inc.

Basic Qualifications

Bachelor's degree in Engineering, or a related Science or Mathematics field, plus a minimum of 5 years of relevant experience; or Master's degree plus a minimum of 3 years of relevant experience.

Clearance Requirements:
Ability to obtain a Department of Defense Top Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.

Responsibilities for this Position

As an Information Systems Security Officer (ISSO) for classified systems at General Dynamics Mission Systems, you will ensure the security and integrity of classified information systems. You will work closely with cross-functional teams to implement and maintain robust security measures. In this role, you will develop, implement, and maintain security policies and procedures, conduct risk assessments, and manage security-related documentation. You will monitor and evaluate system compliance with security requirements, provide guidance on information security best practices, and ensure adherence to government and industry standards. Additionally, you will perform security audits, manage incident response activities, and collaborate with other security professionals to address and mitigate security risks. This role requires excellent problem-solving skills, attention to detail, and the ability to work effectively in a collaborative team environment. Are you ready to make a difference?

What youll experience:

• Technologies that arent just top-notch, theyre often top-secret
• A team of bold thinkers committed to exploring whats next
• Opportunities to gain new knowledge - as its discovered

What you bring to the table:

• Experience developing System Security Plans (SSP) and all supporting Assessment and Authorization documentation such as Security Assessment Reports, SCTMs and POA&Ms
• Experience with eMASS and Service NOW (SNOW) risk management and compliance automation tools
• Experience with various system security assessment/hardening tools - SCAP Compliance Checker, STIG Viewer, ACAS/Nessus, etc
• Trained and proficient in Assured File Transfer (AFT) procedures
• Self-starter with the ability to operate independently with minimal supervision
• Department of Defense Secret clearance required at time of hire and Top Secret obtainable within a reasonable time frame based on requirements.

What sets you apart:

• Outstanding communications skills
• Ability to work collaboratively in a cross-functional team throughout the system life cycle
• DoD 8570 or 8140 Certification meeting IAM Level II (e.g., CISSP, CAP, etc.)
• Demonstrated comprehensive knowledge of the NISPOM-DAAG, NIST SP 800-53, and NIST 800-171

The qualified candidate shall:

• Execute or support the execution of A&A activities, including development of required security documentation, including items such as System Security Plans, Security Assessment Reports, SCTMs and POA&Ms
• Perform weekly system audit reviews, media reviews, hardware/software configuration management
• Execute security testing and evaluation to ensure correct implementation of security controls
• Support the assessment and mitigation of vulnerabilities throughout a systems life cycle
• Conduct IA security education training for all system users on appropriate risk mitigation strategies
• Perform incident response and cleanup actions, when necessary, per company or customer directions
• Ensure systems are operated, maintained, and disposed of in accordance with internal security policies and procedures outlined in the System Security Plan (SSP)

Must be able to obtain a Secret Clearance

Identifies opportunities to apply AI for continuous improvement and innovation

Salary Note

This estimate represents the typical salary range for this position based on experience and other factors (geographic location, etc.). Actual pay may vary. This job posting will remain open until the position is filled.

Combined Salary Range

USD $112,924.00 - USD $125,275.00 /Yr.

Company Overview

General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of 12,000+ top professionals, we partner with the best in industry to expand the bounds of innovation in the defense and scientific arenas. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency. We offer highly competitive benefits and pride ourselves in being a great place to work with a shared sense of purpose. You will also enjoy a flexible work environment where contributions are recognized and rewarded. If who we are and what we do resonates with you, we invite you to join our high-performance team!

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

PI286232353