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1471 security clearance jobs found

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Information Technology Onsite security clearance
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Lockheed Martin
Mar 16, 2026
Information Technology Support Analyst
Lockheed Martin Cape Canaveral, FL, USA
Description: Lockheed Martin is actively seeking a back-office information technology administrator to support our Space business area unclassified & classified programs located in our Cape Canaveral, Florida, US offices. Primary job responsibilities include, but are not limited to customer relationship management, vendor relationship management, financial management, inventory management, computer incident oversight, service request fulfillment, supply chain coordination, information technology audit coordination, and shipping & receiving tracking. If you are looking for a hands-on role with the flexibility to learn and apply a wide range of core organization capabilities, this position may be of interest to you. This is a non-telecommuting position that requires you to be on-site full time and includes some off shift work with occasional weekend activities. Applicants selected will be subject to a security investigation and will need to meet eligibility requirements...
Lockheed Martin
Mar 13, 2026
Systems Engineer - Information Technology
Lockheed Martin Orlando, FL, USA
Description: WHAT WE'RE DOING Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin’s center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. Based in Orlando, TLS develops programs that teach service men and women skills to accomplish their most challenging missions — flying the world’s most advanced fighter aircraft, navigating ships and driving armored vehicles. TLS is the corporation’s hub for simulation, X reality, live-virtual-constructive capabilities, advanced training devices and full-service training programs. TLS also provides sustainment services such as supply chain and logistics IT solutions, spares and repairs, as well as automated test and support equipment. THE WORK This is a position for a Systems IT Engineer on F35 Pilot Training Devices (PTD) as part of the Operational Baseline Integrated Product Team (IPT)....
General Dynamics Mission Systems, Inc
Feb 14, 2026
Information Technology Manager
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Education Requirements: Bachelor’s degree in a related specialized area or the equivalent experience is required plus a minimum of 8 years of relevant experience; or Master's degree plus a minimum of 6 years of relevant experience to meet managerial expectations. Clearance Requirements: Ability to obtain a Department of Defense 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 Ready to be a leader with the company that is committed to pushing the limits of truly advanced technologies? At General Dynamics Mission Systems, we create the products and services that help our service members, intelligence analysts and first...
Lockheed Martin
Feb 10, 2026
Senior Systems Engineer – Information Technology
Lockheed Martin Orlando, FL, USA
Description: WHAT WE'RE DOING Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin’s center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. Based in Orlando, TLS develops programs that teach service men and women skills to accomplish their most challenging missions — flying the world’s most advanced fighter aircraft, navigating ships and driving armored vehicles. TLS is the corporation’s hub for simulation, X reality, live-virtual-constructive capabilities, advanced training devices and full-service training programs. TLS also provides sustainment services such as supply chain and logistics IT solutions, spares and repairs, as well as automated test and support equipment. THE WORK This is a position for a Systems IT Engineer on F35 Pilot Training Devices (PTD) as part of the Operational Baseline Integrated Product Team (IPT)....
Lockheed Martin
Jan 06, 2026
Senior Systems Engineer – Information Technology
Lockheed Martin Orlando, FL, USA
Description: WHAT WE'RE DOING Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin’s center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. Based in Orlando, TLS develops programs that teach service men and women skills to accomplish their most challenging missions — flying the world’s most advanced fighter aircraft, navigating ships and driving armored vehicles. TLS is the corporation’s hub for simulation, X reality, live-virtual-constructive capabilities, advanced training devices and full-service training programs. TLS also provides sustainment services such as supply chain and logistics IT solutions, spares and repairs, as well as automated test and support equipment. THE WORK This is a position for a Systems IT Engineer on F35 Pilot Training Devices (PTD) as part of the Operational Baseline Integrated Product Team (IPT)....
LMI
Feb 06, 2026
ISSO - Information System Security Officer - Clearance Required
LMI Colorado Springs, CO, USA
Overview LMI is seeking a highly motivated mid-level Information System Security Officer (ISSO) looking for hands-on experience and opportunity for career growth under direction of the Chief Information Security Officer.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and...
TRISTAR INC
Mar 20, 2026
Software Developer III
TRISTAR INC Bloomington, IN, USA
TRISTAR is seeking a talented and experienced Software Developer III to join our dynamic team. In this role, you will play a key part in supporting a fast-paced environment focused on building and maintaining the Marine Corps Command and Control User Interface. This is an excellent opportunity for a skilled developer to contribute to critical military systems and advance their career in a collaborative and innovative setting. Requirements Experience with Git version control (i.e.  Version Tracking, Branching & Merging, Distributed Nature & Collaboration). Proficient in object-oriented programming languages (i.e. Python, Java, JavaScript, etc.). Familiarization with the Linux operating system, specifically Red Hat versions. Containerization experience (i.e. Docker & Podman container engines). Familiarization with backend technologies / database management & data storage (i.e. Express, Hono, SQL, etc.). Must be a U.S. Citizen. Ability to...
Lockheed Martin
Mar 20, 2026
Space Protection Tactical Operator
Lockheed Martin Aurora, CO, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. LM SPACE: WHAT WE'RE DOING 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. THE WORK Lockheed Martin is seeking a highly skilled Systems Engineer with an active TS/SCI w/ Poly clearance to join our team in Aurora, CO. This position will work within the Double Eagle program, which supports a proprietary customer with operational support to 24/7 Operations. This...
Lockheed Martin
Mar 20, 2026
Systems Engineer - Hypersonic Requirements
Lockheed Martin Huntsville, AL, USA
Description: "Ahead of Ready" At Lockheed Martin, we are shaping the future of space exploration and defense. As a leader in the industry, we are known for our pioneering spirit, collaborative partnerships, innovative thinking, and commitment to building remarkable products. Our team is dedicated to making a positive impact on the world by leveraging our unique skills and experiences to tackle complex engineering challenges. We are passionate about delivering exceptional results and creating a better tomorrow. We are at the forefront of hypersonic missile development, and we want you to be a part of this exciting journey. If you share our passion for innovation and our commitment to making a difference in the world, we welcome you to join us. Learn more about our Hypersonic Solutions here. The Hypersonics Advanced Programs team is looking for a Systems Engineer on the Razor team for a Research and Development project. In this role, you will report to the Systems...
Lockheed Martin
Mar 20, 2026
Sr. IT Systems Engineer- Secret- Onsite in Orlando, FL
Lockheed Martin Orlando, FL, USA
Description: Job Description : Are you ready to invent the future? Lockheed Martin is on a journey of digital transformation as we leverage our data, modernize our processes and advance technology to maintain our position as the world’s Aerospace and Defense leader. We are leveraging emerging, digitally-enabled capabilities to lower cost, speed up development time and create disruptive solutions to best serve our customers and stakeholders. We’re bringing the 4th Industrial Revolution to every role in the company. We are assembling a team of change agents to tackle the hardest technical challenges that come with digital transformation. We are looking for highly motivated, proactive and enthusiastic individuals to join and contribute significantly to the successful implementation and enablement of this journey for our Lockheed Martin Missiles and Fire Control Team (MFC). This role is for a Classified Linux IT Systems Engineer with a focus on supporting Linux systems for the...
Lockheed Martin
Mar 20, 2026
Software Engineer, Sr FULL TIME REMOTE
Lockheed Martin Bothell, WA, USA
Description: We are committed to work life balance by promoting this REMOTE telework option. These job requirements allow the employee to work their entire schedule somewhere other than a Lockheed Martin designated office or job site. 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 is seeking a Sr Software Engineer! In this role, you will be part of a Software Engineering team and be responsible for: planning, coordinating, designing, developing, testing, debugging, and documenting software; independently determine and develop approach to solutions; apply knowledge of computer hardware and software, subject matter to be programmed in business/mission applications; ensure software standards are met. The successful candidate...
Lockheed Martin
Mar 20, 2026
Systems Engineer-IT, Staff / Top Secret / Onsite: KoP, PA
Lockheed Martin King of Prussia, PA, USA
Description: Lockheed Martin Enterprise Operations (EO) is actively seeking an experienced information technology (IT) professional to support the Space business area classified program areas located in Valley Forge, Pennsylvania. Deep expertise in technical leadership, Linux server, Windows server, Storage and Network administration are essential elements in providing support for these complex classified environments. The candidate will need a strong understanding of TCP/IP, IT security principles, cost estimating, proactive attitude, strong customer relationship management skills and the ability to work both independently and as part of a larger technical team. Primary job responsibilities include, but are not limited to: designing, estimating, ordering, tracking, installing, configuring, securing, hardening, remediating, testing, upgrading and decommissioning of data center equipment, network switches, virtual servers, physical servers, client workstations and...
Lockheed Martin
Mar 20, 2026
Modeling and Simulation Engineer/Data Analyst - Level 3
Lockheed Martin King of Prussia, PA, USA
Description: Protecting what matters most is the mission that matters most. 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. Going to space is just the...
Lockheed Martin
Mar 20, 2026
Systems Engineer Stf
Lockheed Martin Andover, MA, USA
Description: You will be the Systems Engineer for the PAC 3 program at Lockheed Martin Missiles & Fire Control in Chelmsford/Andover, MA. Our team designs, develops and sustains precision engagement missile systems for the U.S. and allied forces, and we are expanding to meet increasing mission demands.. What You Will Be Doing As the Systems Engineer, you will provide technical guidance and day to day leadership for the PAC 3 systems engineering workforce. You will shape requirements, architecture and verification strategies, mentor junior engineers and ensure that all subsystems integrate smoothly into a fully functional missile solution. Your responsibilities will include: • Defining and managing system level requirements, traceability matrices and baseline documentation. • Leading functional and physical architecture development, performing trade studies and recommending optimal design solutions. • Guiding verification and validation planning, including test readiness...
Lockheed Martin
Mar 20, 2026
Sr. Full Stack Engineer
Lockheed Martin Orlando, FL, USA
Description: What We're Doing Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin’s center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. Based in Orlando, TLS develops programs that teach service men and women skills to accomplish their most challenging missions — flying the world’s most advanced fighter aircraft, navigating ships and driving armored vehicles. TLS is the corporation’s hub for simulation, X reality, live-virtual-constructive capabilities, advanced training devices and full-service training programs. TLS also provides sustainment services such as supply chain and logistics IT solutions, spares and repairs, as well as automated test and support equipment. THE WORK This is a position for a Software Engineering Senior on our F35 Pilot Training Devices (PTD) Team. As a key member of our Software Engineering...
Lockheed Martin
Mar 20, 2026
Software Engineer (Cyber) - Early Career
Lockheed Martin Fort Worth, TX, USA
Description: By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. At Lockheed Martin, we place an emphasis on empowering our employees by fostering innovation, integrity, and exemplifying the epitome of corporate responsibility. Your Mission is Ours. Lockheed Martin Aeronautics is seeking a full-time Early Career Cyber Software Engineer. In this role, you will conduct comprehensive assessments of code to uncover security vulnerabilities and map them to potential attack vectors, partner with...
Lockheed Martin
Mar 20, 2026
Cyber Systems Security Engineer (MS Degree - Cyber)
Lockheed Martin Fort Worth, TX, USA
Description: By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. At Lockheed Martin, we place an emphasis on empowering our employees by fostering innovation, integrity, and exemplifying the epitome of corporate responsibility. Your Mission is Ours. Lockheed Martin Aeronautics is seeking a full-time Early Career Systems Engineer (MS Degree - Cyber). In this role, you will conduct cyber risk assessment activities, conduct cybersecurity test and evaluation of hardware and/or software designs and...
Lockheed Martin
Mar 20, 2026
Dev Sec Ops Network Engineer / Secret / Onsite: GA, TX or CA
Lockheed Martin Fort Worth, TX, USA
Description: Join the Classified Network Operations Team supporting DevSecOps initiatives across Lockheed Martin Aeronautics’ high-impact programs. This position is integral to the secure deployment, maintenance, and automation of classified network infrastructure, ensuring compliance, resilience, and agility within a fast-paced, mission-critical environment. You will work hands-on to integrate security into every phase of the network lifecycle—from design and development to operations and monitoring—supporting Lockheed Martin’s strategic platforms including Advanced Development Programs (ADP), F-22, and JSF. • Serve as a DevSecOps engineer with a focus on secure network infrastructure, automating provisioning, compliance checks, and incident response across classified environments. • Maintain and secure network hardware, including Cisco switches, Palo Alto and Juniper firewalls, and Type 1 encryption devices. • Implement infrastructure as code (IaC) where applicable, and...
Lockheed Martin
Mar 20, 2026
F-35 Systems Engineer
Lockheed Martin Eglin Air Force Base, FL, USA
Description: WHAT WE’RE DOING At Lockheed Martin Rotary and Mission Systems, we're on a mission to drive innovation and uphold the highest standards of business ethics. We believe that by pushing the boundaries of visionary thinking, we can achieve exceptional results. As a Lockheed Martin employee, you'll have the opportunity to make a meaningful impact while working in an environment that values integrity and excellence. THE WORK The successful candidate can be based at Eglin AFB to directly support the F-35 Training System and its customers. As a member of the team, you will be responsible for providing engineering support, and liaison support to Aeronautics, the Joint Program Office Lightning Support Team, and customers of the global enterprise of F-35 training centers and training products fielded across the country and around the world. In this role you will: • Assist with day to day operational support for the enterprise wide F 35 environment, ensuring system...
Lockheed Martin
Mar 20, 2026
Sr. DevSecOps Engineer
Lockheed Martin Orlando, FL, USA
Description: What We're Doing Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin’s center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. Based in Orlando, TLS develops programs that teach service men and women skills to accomplish their most challenging missions — flying the world’s most advanced fighter aircraft, navigating ships and driving armored vehicles. TLS is the corporation’s hub for simulation, X reality, live-virtual-constructive capabilities, advanced training devices and full-service training programs. TLS also provides sustainment services such as supply chain and logistics IT solutions, spares and repairs, as well as automated test and support equipment. THE WORK This is a position for a Software Engineering Senior on our F35 Pilot Training Devices (PTD) Team. As a key member of our Software Engineering...
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