161 - 180 of 899 Jobs

Senior Information Systems Security Manager

RTX Corporation

Cambridge, Massachusetts, USA

Full-time

Date Posted: 2025-07-29 Country: United States of America Location: MA105: BBN Headquarters 10 Moulton Street , Cambridge, MA, 02138 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Top Secret Senior Information Systems Security Manager (Sr. ISSM) Our Cybersecurity team in Cambridge, MA. have a great opportunity for

System Administrator II

General Dynamics

Annapolis, Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Communication, Information Systems, Operating Systems (OS), System Security, Systems Software Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: #ITPolyMD Provide support for implemen

Information Systems Security Manager (ISSM) I

General Dynamics

Colorado Springs, Colorado, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Information Security Job Qualifications: Skills: Cybersecurity, Information Security, Information System Security, Security Evaluations Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: The ISSM's primary function serves as a principal advisor on a

Field Engineer

CAE USA Inc.

Fort Wayne, Indiana, USA

Full-time

About This Role Who We Are: CAE Vision: Our vision is to be the worldwide partner of choice in defense and security, and civil aviation by revolutionizing our customers' training and critical operations with digitally immersive solutions to elevate safety, efficiency and readiness. CAE Defense & Security Mission: CAE's Defense and Security business unit focuses on helping prepare military customers to develop and maintain the highest levels of mission readiness. CAE Values: Empowerment, Innovat

Information Systems Security Officer - Wilmington

Textron, Inc.

Wilmington, Massachusetts, USA

Full-time

Job Summary: Provide information systems security support from a managerial and technical standpoint for DoD and Non-DoD classified systems and networks. Standing up and maintaining accreditations for classified systems and networks. Classified Systems & Networks range in complexity and size to include multi-platform computing (Linux, Windows, Solaris, VMWare), virtual environments, and mobile systems. Extensive experience with eMASS, NISPOM Chapter 8, DCSA DAAPM, DISA STIGs. Assemble and mainta

Information Systems Security Officer - Hunt Valley

Textron, Inc.

Maryland, USA

Full-time

Job Summary: Provide information systems security support from a managerial and technical standpoint for DoD and Non-DoD classified systems and networks. Standing up and maintaining accreditations for classified systems and networks. Classified Systems & Networks range in complexity and size to include multi-platform computing (Linux, Windows, Solaris, VMWare), virtual environments, and mobile systems. Extensive experience with eMASS, NISPOM Chapter 8, DCSA DAAPM, DISA STIGs. Assemble and mainta

Principal Information Systems Security Engineer (ISSE)

Leidos

Bethesda, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for Principal Information Systems Security Engineer (ISSE) in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% compa

Senior Information Systems Security Officer

BlueHalo

Annapolis, Maryland, USA

Full-time

At BlueHalo, an AV Company, our Cyber experts operate at the mission's edge. Using advanced cyber techniques, our team of technologists and analysts employ capabilities spanning traditional computing environments to Internet of Things (IoT), including offensive and defensive cyber operations and analysis, signals intelligence (SIGINT) discovery, and data science. Our team is expanding to do the big things that have never been done before - the things the nation and the world are counting on us t

National Security System (NSS) Engineer

Evolver Federal

Springfield, Virginia, USA

Full-time

Evolver Federal is seeking a National Security System (NSS) Engineer to support its Federal client in Springfield, VA in analyzing and mitigating risk for a portfolio of National Security Systems. The NSS Engineer will review and analyze system design and security architecture documentation as well as security documentation, including System Security Plans (SSPs) to identify areas of noncompliance with security requirements and security risk, also identifying discrepancies among documentation as

Information Systems Security Manager

Harris Corporation

Orlando, Florida, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Network Administrator Senior _TS/SCI with Polygraph

General Dynamics Information Technology

Springfield, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Network Configurations, Network Performance, Network Upgrades Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Network Administrator Sen

Network Administrator Senior _TS/SCI with Polygraph

General Dynamics Information Technology

Springfield, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Network Configurations, Network Performance, Network Upgrades Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Network Administrator Seni

Information System Security Officer, Classified Cybersecurity

Lockheed Martin Corporation

Kirtland Air Force Base, New Mexico, USA

Full-time

Job Description This position requires a TS/SCI and willingness to submit for a Polygraph. Classified Cybersecurity ISSOs help secure lifesaving products and critical state-of-the-art engineering and manufacturing systems by applying cutting edge cybersecurity principles. Rising to the challenge of building a more secure world for the warfighter, space exploration, climate sustainability and commercial use. The Cybersecurity Specialist will partner with the security team, program, and governm

Cybersecurity - Information System Security Manager (ISSM)

Boeing Company

Mountain View, California, USA

Full-time

Cybersecurity - Information System Security Manager (ISSM) Company: The Boeing Company The Boeing Company is currently seeking a Cybersecurity - Information System Security Manager (ISSM) to join the team in Mountain View, CA. The selected candidate will rely on cybersecurity and Information Assurance (IA) background to be a technical leader and support Enterprise activities and Boeing customers throughout multiple classified computing domains. The ISSM is responsible for ensuring all Informat

System Administrator (SA2) (Government)

AT&T Inc.

Columbia, Maryland, USA

Full-time

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. MAROONMIDNIGHTS (MMN) Provide IT support and solutions developed for National Cryptologic University classified training

Alt Information System Security Manager, Classified Cybersecurity

Lockheed Martin Corporation

Cape Canaveral, Florida, USA

Full-time

Job Description Final DoD Secret security clearance and the ability to obtain and maintain a Top Secret clearance, Lockheed Martin Space (LMS) is seeking a Cybersecurity Specialist / Alternate Information System Security Manager (ISSM) supporting the Fleet Ballistic Missile (FBM) D5LE2 program. This position is located in Cape Canaveral, FL. The selected candidate will be responsible for leading cybersecurity operations for the D5LE2 program, which will include developing cybersecurity require

System Administrator (SA2) (Government)

AT&T Inc.

San Antonio, Texas, USA

Full-time

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. MAROONMIDNIGHTS (MMN) Provide IT support and solutions developed for National Cryptologic University classified training

Principal Information Systems Security Engineer (ISSE)

Leidos

Bethesda, Maryland, USA

Full-time

Description Leidos has a new and exciting opportunity for Principal Information Systems Security Engineer (ISSE) in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K wit

Associate Manager, Information Systems Security Manager (ISSM)

Harris Corporation

Palm Bay, Florida, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Information System Security Manager

Leonardo DRS

San Diego, California, USA

Full-time

DRS Daylight Solutions business provides industry-changing photonic engine technology for government and commercial markets, including defense and security, quantum information sciences, life sciences, and industrial process control. As a laser technology pioneer, Daylight Solutions has delivered more mid-IR systems to more applications world-wide than any other company. Daylight laser solutions span the full spectrum from UV to visible to NIR to mid-IR. At DRS Daylight Solutions, you will be e