Senior IT Security Specialist Job ID Number 2026-74888 Sudbury, MA, US Category Information Technology Required Clearance No clearance Employment Type Full Time Remote Option Remote, Hybrid, On-Site Business Unit GD Mission Systems Apply Now At

GDMISSIONSYSTEMS.COM

Responsibilities for this

Position Senior IT Security Specialist ID:

2026-74888

US-Telework-Telework Required Clearance:

No clearance

Posted Date:

9/14/2026

Category:

Information Technology Employment Type:

Full Time Hiring Company:

General Dynamics Mission Systems, Inc. Basic Qualifications Master's degree, plus a minimum of 6 years of relevant experience. Bachelor's degree in a related specialized area or equivalent relevant experience is required, plus a minimum of 8 years of relevant experience; or Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Providing security engineering, systems integration, and technical support services to customers, youll develop and implement security controls, defenses, and countermeasures to prevent internal and external attacks against enterprise systems, networks, applications, email, and data. You will deploy, configure, integrate, maintain, troubleshoot, and optimize cybersecurity products that help defend the enterprise against malicious actors. These solutions may include firewalls, endpoint detection and response, intrusion detection and prevention, security information and event management, vulnerability management, email security, data loss prevention, encryption, and identity and access management technologies. You will also install, configure, maintain, and support network infrastructure, servers, workstations, operating systems, and related hardware and software. In addition, you willl administer security policies that control physical and virtual access to systems while helping ensure the confidentiality, integrity, availability, reliability, and performance of enterprise computing environments.

What youll experience:

A team of bold thinkers committed to exploring whats next Opportunities to gain new knowledge as its discovered A collaborative environment focused on delivering secure, reliable network and computer solutions What you bring to the table: A Bachelors degree in a related specialized area or equivalent, plus a minimum of 8 years of relevant experience; or a Masters degree plus a minimum of 6 years of relevant experience Ability to develop, test, debug, and administer Enterprise products that support security protocols for established systems Ability to apply current computer science technologies to the design, development, evaluation, integration, and support of secure computer systems and networks Experience deploying, configuring, integrating, maintaining, and troubleshooting enterprise cybersecurity products Experience installing, configuring, maintaining, and supporting network devices, servers, workstations, operating systems, and related hardware and software Ability to analyze security alerts, diagnose technical issues, perform root-cause analysis, and implement effective corrective actions Very strong knowledge of: Disaster recovery and continuity-of-operations planning Security incident response and handling methodologies Current cyber threats, attack techniques, security controls, and defensive technologies Cybersecurity product lifecycle management and operational support Resource management principles and techniques Server administration and systems engineering theories, concepts, and methods System lifecycle management, including software security, maintenance, and usability Information security program and project management principles and techniques Network architecture, protocols, services, monitoring tools, and performance management Endpoint, workstation, server, and network support practices Security architecture concepts and enterprise architecture reference models Applicable customer business processes and operations System software and organizational design standards, policies, and authorized approaches What sets you apart: Creative and analytical thinking with the ability to manage multiple priorities Strong troubleshooting skills across cybersecurity, network, server, and computer environments A collaborative mindset and commitment to team success Strong written and verbal communication skills Commitment to ongoing professional development Ability to identify 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 $126,862.00 - USD $137,269.00 /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

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Back To Search Results General Dynamics Mission Systems is a technology integrator and original equipment manufacturer that provides mission critical solutions across ground, sea, air, space and cyberspace. Ask A Question Share this job URL Copied! #GDMSCareers #GDCareers