Corporate Gray Online
  • Jobs
  • Companies
  • Post a Job
  • Resume Search
  • Employer Products
  • Job Seeker Products
  • Resources
  • Corporate Gray
  • Absolutely American
  • Proud American E-zine
  • Military Minute Podcast
  • Military Officer Career Conference
  • Sign in
  • Sign up
  • Jobs
  • Companies
  • Post a Job
  • Resume Search
  • Employer Products
  • Job Seeker Products
  • Resources
  • Corporate Gray
  • Absolutely American
  • Proud American E-zine
  • Military Minute Podcast
  • Military Officer Career Conference

239 senior security engineer jobs found

Refine Search
Current Search
Security Clearance senior security engineer
Refine by Job Categories
Information Technology  (449) Engineering  (340) Electronics  (142) Manufacturing  (74) Management  (53) Energy  (38)
Program Management  (24) Law Enforcement  (21) Automotive  (16) Marketing  (8) Media  (8) Science  (7) Executive  (6) Facilities  (4) Finance  (4) Legal  (4) Telecommunications  (4) Accounting  (3)
More
Refine by State
Colorado  (41) VA  (29) Florida  (24) Massachusetts  (15) Arizona  (14) Pennsylvania  (13)
New Jersey  (12) Maryland  (10) Texas  (10) Alabama  (9) California  (7) Minnesota  (7) Virginia  (7) CA  (4) ME  (4) CO  (3) District of Columbia  (3) IN  (3) AL  (2) DC  (2)
More
Refine by City
Colorado Springs  (23) Orlando  (23) Scottsdale  (13) King of Prussia  (12) Littleton  (11) Moorestown  (9)
Pittsfield  (9) Huntsville  (8) Bloomington  (7) Boulder  (6) Fort Worth  (5) Remote, UNAVAILABLE  (4) Dedham  (3) Grand Prairie  (3) Mount Laurel Township  (3) Sunnyvale  (3) Washington  (3) Herndon  (2) Marion  (2) Port Hueneme  (2)
More
Refine by Company Name
Lockheed Martin  (120) SAIC  (52) General Dynamics Mission Systems, Inc  (49) LMI  (14) Odyssey Systems Consulting Group  (2) DLH  (2)
Refine by Employment Type
Full time  (2)
Refine by Onsite/Remote
Onsite  (239)
Refine by Country
United States  (183) 214  (49) 148  (3)
SAIC
Jun 01, 2026
Senior Security Engineer
SAIC ME
Description SAIC is seeking a Senior Security Engineer to support the Portsmouth Naval Shipyard (PNSY) Information Technology Programs for the Dept of the Navy. This initiative leverages advanced technologies and integrates critical defense systems to optimize ship maintenance through IT applications, systems, and training, ensuring sustained mission success in naval ship maintenance operations. W ork is performed on site in Kittery, ME. Role : Actively monitor, detect, and respond to cybersecurity threats and incidents within an organization. Utilize advanced security tools and technologies, such as Host-Based Security System (HBSS) and Security Information Event Management (SIEM) platforms, to continuously monitor network traffic, identify vulnerabilities, and detect suspicious activities. Conduct thorough investigations of security incidents, implement incident response protocols, and coordinate remediation efforts to mitigate potential risks. Collaborate with IT teams...
DLH
Jun 18, 2026
Senior Cyber Security Engineer (Job 1355)
DLH Baltimore, MD
About Us DLH delivers improved health and national security readiness solutions for federal programs through science research and development, systems engineering and integration, and digital transformation. Our experts in public health, performance evaluation, and health operations solve the complex problems faced by civilian and military customers alike by leveraging advanced tools – including digital transformation, artificial intelligence, data analytics, cloud enablement, modeling, and simulation, and more. With over 2,400 employees dedicated to the idea that “Your Mission is Our Passion,” DLH brings a unique combination of government sector experience, proven methodology, and unwavering commitment to innovation to improve the lives of millions. Overview The Senior Cybersecurity Engineer serves as a technical leader within the National Institute on Aging (NIA) Information System Security Office (ISSO) by designing, implementing, and...
DLH
Jun 18, 2026
Senior Cyber Security Engineer (Job 1356)
DLH Bethesda, MD
About Us DLH delivers improved health and national security readiness solutions for federal programs through science research and development, systems engineering and integration, and digital transformation. Our experts in public health, performance evaluation, and health operations solve the complex problems faced by civilian and military customers alike by leveraging advanced tools – including digital transformation, artificial intelligence, data analytics, cloud enablement, modeling, and simulation, and more. With over 2,400 employees dedicated to the idea that “Your Mission is Our Passion,” DLH brings a unique combination of government sector experience, proven methodology, and unwavering commitment to innovation to improve the lives of millions. Overview The Senior Cybersecurity Engineer serves as a technical leader within the National Institute on Aging (NIA) Information System Security Office (ISSO) by designing, implementing, and...
SAIC
Jun 01, 2026
Senior Cyber Engineer
SAIC ME
Description SAIC is seeking a Senior Security Engineer to support the Portsmouth Naval Shipyard (PNSY) Information Technology Programs for the Dept of the Navy. This initiative leverages advanced technologies and integrates critical defense systems to optimize ship maintenance through IT applications, systems, and training, ensuring sustained mission success in naval ship maintenance operations. Work is performed on site in Kittery, ME. Role: Architects, plans, configures, deploys, maintains, and upgrades COTS/GOTS and custom toolsets to address vulnerabilities and/or implement security controls. Applies a combination of expert engineering knowledge of enterprise IT and security solutions to design, develop and/or implement solutions to ensure they are consistent with enterprise architecture security policies and support full spectrum military cyberspace operations. Designs, tests, and implements secure operating systems, networks, security monitoring, tuning and...
Lockheed Martin
May 23, 2026
Senior Network Security Engineer (Top Secret Clearance)
Lockheed Martin Colorado Springs, CO
Description: What We’re Doing At Lockheed Martin, our Command and Control, Battle Management and Communications (C2BMC) National Team (C2NT) is pioneering the development and integration of cutting-edge technologies to advance the Missile Defense System, safeguarding the United States and its allies. Our collaborative and agile organization operates in a fast-paced environment, driving innovation through tasks such as sensor/weapon integration, algorithm development, user interface development, automated testing, cyber security, enterprise/infrastructure services, and enhancing leading-edge missile defense technologies. The Work Designs, plans, and validates secure network communications systems for the C2BMC program. You develop detailed specifications, schematics, and capacity forecasts; select hardware/software; implement firewalls, switches, routers, and security relevant devices; and conduct rigorous testing. You apply DoW RMF/CSRMC/STIG compliance, produce required IA...
Lockheed Martin
Apr 02, 2026
Cyber Security Engineer Senior
Lockheed Martin Colorado Springs, CO
Description: WHAT WE’RE DOING At Lockheed Martin's Rotary and Mission System's Cyber Resiliency organization, we are dedicated to engineering and deploying cutting-edge cyber defense solutions across our corporation. Our focus on cybersecurity is paramount to ensuring mission success for our customers, even in the face of evolving cyber threats. THE WORK As a member of our team, you will be involved in a variety of activities aimed at enhancing the cyber resiliency of the USSF Space Fence System radar. This includes tasks such as: • Hardening operating systems, applications, and network devices • Conducting vulnerability scans • Continuous monitoring of the security posture of the system • Assisting with Government Certification Test and Evaluation (CT&E) and Vulnerability Testing • Implementing security updates and patches • Applying configuration changes to ESS, ACAS, and SolarWinds security tools • Providing support to maintain the Certification and Accreditation...
Lockheed Martin
Jun 12, 2026
Cyber Systems Security Engineer Senior
Lockheed Martin King of Prussia, PA
Description: Cyber Systems Security Engineer (CSSE) – TTWCS Program What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical expertise to design solutions that safeguard our nation and allies. Every day, we push boundaries to ensure mission success—and we invite you to be part of this critical work. The Work As a Cyber Systems Security Engineer (CSSE) supporting the TTWCS program, you will: Support the TTWCS modernization effort with architecting new solutions. Conduct cyber risk assessment activities, including threat modeling, vulnerability analysis, and evaluation of mitigation strategies. Develop, analyze, and validate security design constraints within the cyber domain. Collaborate with cybersecurity engineers, system architects, and developers to ensure robust, secure system...
Lockheed Martin
May 29, 2026
Cyber Security Engineer Senior
Lockheed Martin Herndon, VA
Description: Responsible for applying an interdisciplinary, collaborative approach to plan, design, develop, validate and verify Cyber solutions across the lifecycle. Conduct cyber risk assessment activities including threat modeling, vulnerability analysis and analysis of mitigation solutions. Coordinates and addresses Supply Chain risk management concerns. Develop, evaluate and analyze design constrains, trade-offs and detailed system and security design as they pertain to the Cyber domain. Coordinate with Cyber and system architects and developers to provide oversight in the development of solutions. Conduct cybersecurity test and evaluation of hardware and/or software designs to verify and validate compliance with defined specifications and requirements. Employs cyber security processes, methods, techniques and tools and assure their consistent application. Implements appropriate Assessment and Authorization activities as required by customers. Basic Qualifications: -...
Lockheed Martin
Apr 28, 2026
Cyber Security Engineer Senior (Represented)
Lockheed Martin Moorestown, NJ
Description: WHAT WE’RE DOING At Lockheed Martin's Rotary and Mission System's Cyber Resiliency organization, we are dedicated to engineering and deploying cutting-edge cyber defense solutions across our corporation. Our focus on cybersecurity is paramount to ensuring mission success for our customers, even in the face of evolving cyber threats. WHO WE ARE Lockheed Martin is driven by innovation, integrity, and a commitment to excellence. We believe in applying the highest standards of business ethics and visionary thinking to everything we do. As part of our team, you will collaborate with a cross functional team of technical professionals including software and systems engineers and radar operators to maintain the cybersecurity posture of the Space Fence Radar System. WHO YOU ARE We are looking for individuals who are passionate about cybersecurity and eager to contribute their skills and expertise to our mission. You should have demonstrable knowledge in...
Lockheed Martin
Mar 14, 2026
Embedded Systems Security Engineer, Senior - Level 3
Lockheed Martin Orlando, FL
Description: You will be a Cyber Systems Security EMBEDDED 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 Engineering design and implementation in all aspects of System Security Engineering (SSE) process in development of Department of Defense (DoD) Weapon Systems. Your responsibilities will include: • Assessing and mitigating System Security threats/risks throughout the embedded Weapon System development life cycle. • Validating System Security Engineering requirements decomposition, allocation and analysis for embedded Weapon Systems. • Implementing System Security Engineering...
Lockheed Martin
Jun 19, 2026
Systems Engineer, Stf (Requirements)-GMD Weapons Systems
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected Systems Engineer responsibilities will include the support of the Ground Weapons System (GWS) program as an individual contributor on the A&D Requirements team. This role is responsible for developing Systems Engineering products that directly support the design and development of the GWS capability on behalf of the Missile Defense Agency (MDA). -The selected candidate should thrive in a fast-paced work environment with high expectations, collaborative/teams comprised of all experience levels. -Due to the...
Lockheed Martin
Jun 19, 2026
Senior Software Engineer (Level III) - Top Secret clearance
Lockheed Martin Littleton, CO
Description: Position details: Location: Littleton, CO Work Schedule: 9x80 Position type: Full-time onsite (this is not a hybrid position) _____________________________________________ Space is a critical domain, connecting our technologies, our security, and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire, and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security...
Lockheed Martin
Jun 19, 2026
Aircraft Field Support Engineer Senior, F-35 - Level 3
Lockheed Martin Beaufort, SC
Description: Join the Lockheed Martin Aeronautics Company as an Aircraft Field Service Engineer (FSE) on our Aeronautics Field Sustainment team! This FSE position directly supports the USMC customer at U.S. Marine Corps Air Station Beaufort, South Carolina. What You Will Be Doing • As a Nose to Tail (NTT) FSE, the preferred candidate will be a subject Matter Expert (SME) in Avionics/Mission Systems (MS). • It is desired the individual also be an emerging authority in APG/Vehicle Systems (VS) and Supportable Low Observable (SLO)/Structures, with the skill set to accomplish troubleshooting and analysis of MS, VS, or SLO. • The candidate will act as part of the Lockheed Martin Aeronautics Field Sustainment Team's technical interface to the on-site Customer (both Operations and Maintenance) in resolving issues arising from maintenance and modification activities for all matters dealing with the F-35 aircraft. • Must be a United States citizen. Must possess at minimum an...
Lockheed Martin
Jun 19, 2026
Aircraft Field Support Engineer Staff, F-35 - Level 4
Lockheed Martin Hill Air Force Base, UT
Description: Our products play an important role in the national security of the United States and more than 70 other countries, ensuring peace and stability around the world. Highly trained and specialized personnel and facilities are key to the company's unrivaled success in the aeronautics industry. Our workforce of more than 30,000 has pre-eminent expertise in advanced aircraft design and production, modification and support, stealth technology and systems integration. Join the Lockheed Martin Aeronautics Company as an Aircraft Field Service Engineer (FSE) on our Aeronautics Field Sustainment (AFS) team! This FSE position directly supports 3 different combat F-35 squadrons at Hill Air Force Base (AFB), UT. What You Will Be Doing: As a Nose to Tail (NTT) FSE, the preferred candidate will be a subject Matter Expert (SME) in Avionics/Mission Systems (MS). It is desired the individual also be an emerging authority in Supportable Low Observable (SLO)/Structures, with the skill...
Lockheed Martin
Jun 19, 2026
Cyber Systems Engineer III
Lockheed Martin Littleton, CO
Description: WHAT WE’RE DOING At the dawn of a new age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing workforce are on a mission to make a difference in the world. Our World-class team leverages unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. WHO WE ARE We are leveraging emerging, digitally-enabled capabilities to lower cost, speed up development time and create innovative solutions to best serve our customers and stakeholders. We’re bringing the 4th Industrial Revolution to every role in the company. Are you ready to invent the future? Lockheed Martin Rotary & Mission Systems is on a journey of digital transformation as we...
Lockheed Martin
Jun 19, 2026
Systems Engineer, Sr - Weapon Products
Lockheed Martin Mount Laurel Township, NJ
Description: What We're Doing As a part of the Lockheed Martin community, we take on challenges and find solutions using creativity and collaboration. If you’re looking to be a part of a passionate team solving these complex problems, then Rotary and Mission Systems is the place for you. The Work Lockheed Martin Rotary and Mission Systems is seeking a Full-Time Senior System Engineer. In this role, you will work on Combat System development and test execution as individual contributor in the Weapon Products. The successful candidate will have knowledge or experience in System Engineering of Weapons Control Systems product supporting Ballistic Missile Defense (BMD) and Anti-Air Warfare (AAW) programs to meet cost and schedule. Must be a US Citizen. This position will require a government security clearance. This position is located at a facility that requires special access. Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to...
Lockheed Martin
Jun 19, 2026
Sr Mass Properties Engineer
Lockheed Martin King of Prussia, PA
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Mass Properties Engineering is the art and science of predicting the mass properties of...
General Dynamics Mission Systems, Inc
Jun 17, 2026
Cyber Security Analyst - SIEM Engineer
General Dynamics Mission Systems, Inc San Antonio, TX
Basic Qualifications Bachelor's degree in Engineering, or a related Science or Mathematics field, plus a minimum of 8 years of relevant experience; or Master's degree plus a minimum of 6 years of relevant experience.   CLEARANCE REQUIREMENTS: Current or active Department of Defense Top Secret clearance with SCI eligibility required with ability to obtain a Polygraph 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   We are seeking a highly skilled and experienced Cyber Security Analyst / SIEM Engineer to join our SPRINT Next program team in San Antonio, Texas . In this position, you will serve as a security engineer responsible for administering and...
SAIC
Jun 17, 2026
Senior Radio Communication Engineer
SAIC VA
Description SAIC is seeking a highly skilled Senior Communications Engineer to join our team in support of the Air Operations Center Weapons System (AOC WS) Falconer Program. Located at the USAF customer site in Hampton, VA, this critical role reports directly to the Fielding, Logistics, and Site Support Team (FLSST) IPT Lead. In this role, you will apply your advanced expertise in Radio Frequency (RF) systems, configuration management, and tactical datalinks to install, modernize, and sustain the operational AOC baseline. Serving as a key representative of SAIC and the Falconer Program, you will operate with a high degree of autonomy, interfacing face-to-face with government customers and associate contractors to drive mission success. Please note: This position requires readiness for extensive global travel to various AOC sites. Key Responsibilities: • System Sustainment & Upgrades: Drive the day-to-day sustainment and major modernization of the fielded AOC RF...
SAIC
Jun 17, 2026
Data Scientist Chief
SAIC VA
Description Reports to the CTO / Capture Lead ; serves as the senior technical advisor and mission-aligned strategist for data, AI/ML, and Agentic AI solutioning across Intelligence Community (IC) pursuits, SOAR™ commercial engagements, and customer shaping activities. This role is deliberately designed as a hybrid of pre-sales engineering and domain advisory - someone technical enough to architect and price SOAR™ completions, and credible enough to shape demand with IC customers 18+ months before a bid drops. This is not a proposal writer. This is not a delivery engineer. This is the person who creates customer pull, packages winning solutions, and ensures the team's technical narrative is grounded in real mission need and real technology capability. Key Responsibilities SOAR™ Solutioning & Commercial Packaging Owns the technical architecture, scoping, and pricing of SOAR™ completion-based offerings for IC customers, translating mission needs into fixed-price,...
  • Home
  • Contact
  • About Us
  • Terms & Conditions
  • Employer
  • Post a Job
  • Search Resumes
  • Sign in
  • Job Seeker
  • Find Jobs
  • Create Resume
  • Sign in
  • Facebook
  • X
  • Instagram
  • LinkedIn
© 2008-2026 Corporate Gray, powered by Absolutely American, Inc.