Network/Systems Security Engineer Jobs

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Cyber Systems Security Engineer - Level 4Job Title - Cyber Systems Security Engineer - Level 4

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Palmdale, California, USA

Full-time

Job Description Join our team of innovative engineers at Lockheed Martin Aeronautics, where we're pushing the boundaries of technology to design and develop cutting-edge air vehicles and aircraft. As a Cyber Systems Security Engineer, you'll play a critical role in ensuring the cyber security of our platforms, from design to implementation. Your expertise will help us create cyber-resilient security design solutions that meet the needs of our customers and protect our systems from emerging thre

Cyber Systems Security Engineer SrJob Title - Cyber Systems Security Engineer Sr

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Manassas, Virginia, USA

Full-time

Job Description What We're Doing At Lockheed Martin - Rotary and Mission Systems, we're shaping the future of Undersea Warfare (USW) systems. Our mission is to develop innovative technologies that secure our nation's defense. We are integrating state-of-the-art cybersecurity solutions into mission-critical systems to ensure resilience, integrity, and continued superiority under the sea and across domains. The Work As a Cyber Systems Security Engineer Staff, you will take a leadership role in

Cyber Systems Security Engineer - Level 4Job Title - Cyber Systems Security Engineer - Level 4

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Las Vegas, Nevada, USA

Full-time

Systems Security Engineer IIJob Title - Systems Security Engineer II

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Hagerstown, Maryland, USA

Full-time

Are you ready to be at the forefront of cutting-edge technology and innovation? Join us at our Hagerstown facility, where we're spearheading the Next Gen ISR (Intelligence, Surveillance, and Reconnaissance) efforts that are set to revolutionize the industry! As a key member of our dynamic team, you'll have the opportunity to work on groundbreaking projects that leverage the latest advancements in ISR technology. You'll collaborate with top-tier professionals and contribute to the development of

Cyber Systems Security Engineer Staff - Skunk Works - Level 4Job Title - Cyber Systems Security Engineer Staff - Skunk Works - Level 4

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Palmdale, California, USA

Full-time

Job Description The Cyber Systems Security Engineer Staff will be responsible for leading a team of fellow engineers in the designing, assembly, integration, and maintenance of System Integration Lab (SIL), particularly focusing on network planning, hardware installation, software integration support, verification, and validation of system functionality. In addition to designing and building the SIL the applicant will be responsible for ensuring the SIL is NIST/RMF/JSIG compliant and assist in

Sr. Systems Security EngineerJob Title - Sr. Systems Security Engineer

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Lone Tree, Colorado, USA

Full-time

If you like solving complex IT and security problems using your deep analytical skills, this is the opportunity for you! As a Sr Systems Security Engineer, you will be using your skills and expertise to design, test, and implement our secure operating systems, networks, security monitoring, and tuning. You'll be responsible for the management of our IT security systems and applications, incident response, digital forensics, loss prevention, and eDiscovery actions, conducting risk and vulnerabili

Cyber Systems Security Engineer (Embedded)Job Title - Cyber Systems Security Engineer (Embedded)

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Florida, USA

Full-time

Job Description You will be a Cyber Systems Security Engineer in the Program Protection Organization. Our organization oversees all aspects of Anti-Tamper and embedded Cybersecurity across Missiles and Fire Control. We are chartered with providing the skills and innovative technologies to develop, design, produce and sustain secure products across our Lines of Business. What You Will Be Doing As the Cyber Systems Security Engineer you will be responsible for providing embedded System Security

Cyber Systems Security Engineer - Level 2Job Title - Cyber Systems Security Engineer - Level 2

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Fort Worth, Texas, USA

Full-time

Job Description Lockheed Martin Aeronautics. Be More Than You Can Imagine. Lockheed Martin's aircraft leadership is earned through relentless research and development of high-performance combat, air mobility and reconnaissance and surveillance aircraft. We also provide world-class training, focused logistics support, and advanced targeting and navigation technologies to enable the right people with the right skills to be in the right place at the right time with the right information and the r

Embedded Systems Security Engineer SrJob Title - Embedded Systems Security Engineer Sr

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Florida, USA

Full-time

Senior Information Systems Security EngineerJob Title - Senior Information Systems Security Engineer

LeidosCompany Name - Leidos

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Orlando, Florida, USA

Full-time

Description The Multi-Domain Solutions Division within National Security at Leidos has an opening for a Secret cleared Senior Information Systems Security Engineer (ISSE) to work in our Orlando, FL office. Primary ResponsibilitiesProvide program Cybersecurity leadership for global networkHelp develop and maintain Risk Management Framework package for accreditation of the DI Network. Provide Cyber Support for the DI Network Mission, Test, Training, and Planning Systems associated with the implem

Systems Security EngineerJob Title - Systems Security Engineer

Computer Merchant, Ltd., TheCompany Name - Computer Merchant, Ltd., The

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Taunton, Massachusetts, USA

Full-time

Job Title : Systems Security Engineer Location: Taunton, MA Wage Range: 80-88 Job Number: 25-02990 Job Description: Our client, a large defense contractor, has an immediate opening for a Systems Security Engineer to work from their Taunton, MA facility. We are seeking a Systems Security Engineer who has experience in the design and development of NSA-certified Cybersecurity devices. Qualifications: Requires a Bachelor's degree in Systems Engineering, or a related Science, Engineering or Ma

Information Systems Security EngineerJob Title - Information Systems Security Engineer

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Fort Belvoir, Virginia, USA

Full-time

Job Number: R0221437 Information Systems Security Engineer The Opportunity: Are you looking for an opportunity to share your experience in system security engineering to help our country and assist our clients with critical missions? As a systems security and network security engineer, you can identify the Information System Security Engineering needed to assess vulnerabilities and recommend the best solution and security strategy. We need your experience to lead the development and implementat

Information Systems Security EngineerJob Title - Information Systems Security Engineer

Konane SolutionsCompany Name - Konane Solutions

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Annapolis, Maryland, USA

Full-time

U.S. Citizenship Required Clearance: TS/SCI with Polygraph Required DoD 8570.01-M compliance with IASAE Level 2 required CISSP certification required Education & Experience: Participate as security engineering lead on teams designing, developing, and integrating secure systems and IA architectures Support government enforcement of trusted relationships among external systems and architectures Conduct system security assessments and recommend mitigation strategies Provide security planning, risk

Senior Systems Security EngineerJob Title - Senior Systems Security Engineer

SAICCompany Name - SAIC

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Alexandria, Virginia, USA

Full-time

Job ID: 2507174 Location: ALEXANDRIA, VA, US Date Posted: 2025-07-01 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is hiring a Senior Systems Security Engineer with an active TS/SCI clearance to participate in Independent Technical Risk Assessments (ITRA) and Program Protection Plan () reviews to

Military Fellowship Program: Systems Security EngineerJob Title - Military Fellowship Program: Systems Security Engineer

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Lone Tree, Colorado, USA

Full-time

SNC's Military Fellowship Program partners with programs such as SkillBridge and Hiring Our Heroes to provide fellowship opportunities to service members transitioning to the civilian workforce. These fellowships include up to six months of on-the-job industry training for eligible service members. During this time, participants gain valuable work experience in the civilian sector and build professional networks as they prepare for their transition to full-time civilian work. NOTE: You must be

Information Systems Security Engineer IIJob Title - Information Systems Security Engineer II

LeidosCompany Name - Leidos

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Annapolis, Maryland, USA

Full-time

The Digital Modernization Sector at Leidos currently has an immediate need for an experienced Information Systems Security Engineer (ISSE) II for a strategic High-Performance Computing (HPC) program. The ISSE II will need to be a self-starter with excellent analytical and problem-solving skills, flexibility, good judgment, and the ability to work within a team to mature the HPC capabilities of our customer. Primary Responsibilities: Assists the Government in creating techniques and tools within

Senior Information Systems Security EngineerJob Title - Senior Information Systems Security Engineer

LeidosCompany Name - Leidos

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Maryland, USA

Full-time

As a Senior Information Security Systems Engineer (ISSE) you will join a small team of security engineers providing Information Assurance (IA) Architecture Analysis and Security Engineering Support for the implementation and fielding of the National Leadership Command Capability in support of Nuclear Command, Control, and Communications (NC3), Continuity of Government (COG), and Senior Leader communications. The ISSE will perform in a consultant like role providing technical knowledge, expertise

Information Systems Security Engineer (ISSE)Job Title - Information Systems Security Engineer (ISSE)

LeidosCompany Name - Leidos

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Washington, USA

Full-time

We are actively seeking Information Systems Security Engineers (ISSE) with a minimum of five (5) years' experience in the role of an ISSE. This opportunity is supporting the customer's Accreditation and Authorization (A&A) projects at the Group organizational level and is therefore supporting across various levels within the customer organization. This role is primarily remote, with occasional onsite requirements. Candidates must be local to the DC Metro area and available to attend in-person me

Information Systems Security Engineer (ISSE)Job Title - Information Systems Security Engineer (ISSE)

Apex SystemsCompany Name - Apex Systems

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Washington, District of Columbia, USA

Full-time

Job#: 2080503 Job Description: Apex Systems is seeking an Information Systems Security Engineer (ISSE) to support the US Airforce at the Pentagon. If interested, email your resume. Position: ISSE Location: Fully onsite @ the Pentagon Hours: M-F 8 hour shift between 6AM-6PM Job type: Long term contract Certifications: Must have Security + Overview: Seeking high-level IT Professionals to provide cyber security and security engineering services including system security engineering, cybersecuri

Information Systems Security Engineer-HybridJob Title - Information Systems Security Engineer-Hybrid

Elite TechnicalCompany Name - Elite Technical

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Reston, Virginia, USA

Full-time

Absolutely no third parties please !! Our client is seeking an Information Systems Security Engineer for a direct hire engagement. Clearance: TS/SCI Eligible / SAP Eligible Education: MA/MS in Cybersecurity, Computer Science or related field (or BS in a related field plus an additional 4 years of related work experience) A minimum of fifteen (15) years of related work experience in information security, and of those years, at least ten (10) years of experience supporting a component of the Depa