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29 level 3 jobs found in Littleton, CO

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Security Clearance Littleton, CO level 3
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Lockheed Martin
May 29, 2026
Dev Sec Ops Engineer
Lockheed Martin Boulder, CO
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 The Lockheed Martin Next Generation Geo (NGG) team is seeking experienced level 3 DevSecOps Systems Engineer with an active Secret clearance to work from either our Boulder, CO or Longmont, CO location. This is an MID-SR (level 3) ROLE where candidates typically have 3+ years of...
Lockheed Martin
May 27, 2026
Systems Administrator
Lockheed Martin Boulder, CO
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. And we’re reimagining how space can connect us, ensuring security and prosperity. THE WORK Lockheed Martin is seeking a talented level 3 Systems Admin. Engineer with a Secret clearance and Sec+ (8570 cert) to work from our Boulder, CO location . Join a team where your network expertise will...
Lockheed Martin
May 23, 2026
Database Administrator - Early/Mid Career
Lockheed Martin Boulder, CO
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. And we’re reimagining how space can connect us, ensuring security and prosperity. 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...
Lockheed Martin
Jul 02, 2026
Subcontract Program Manager, Staff
Lockheed Martin Littleton, CO
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. What is the mission? 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. ✪ Who we are: We are a dynamic team at the cutting edge of National Security Space dedicated to developing innovative technologies that address the most unique and pressing customer challenges. Our collaborative culture fosters creativity, teamwork, and the pursuit of excellence for our programs and our suppliers. ✪ Why join us: This is an opportunity to be at the forefront of managing critical partnerships for key discriminating deliverables that drive the success of a quickly growing...
Lockheed Martin
Jun 25, 2026
Cyber Sys Secur Engr Sr
Lockheed Martin Littleton, CO
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 on the implementation of Cyber 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: - Bachelor’s degree...
Lockheed Martin
Jun 25, 2026
Cyber Sys Secur Engr Sr
Lockheed Martin Littleton, CO
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 on the implementation of Cyber 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: - Bachelor’s degree...
Lockheed Martin
Jun 12, 2026
Cyber Software Engineer II
Lockheed Martin Littleton, CO
Description: The Cyber Software Engineer (level 2) is a mid‑level role that requires owing security outcomes across the product lifecycle. In this position you will lead the definition of security architecture for new features and major refactors, conduct threat‑modeling investigations, and translate product requirements into concrete security controls. Responsibilities include spearheading comprehensive vulnerability assessments (static, dynamic, and dependency‑scanning) prioritizing vulnerability remediation, and ensuring continuous compliance with frameworks such as NIST, ISO 27001, and DoD RMF. The Cyber Software Engineer (level 2) will design, develop, and maintain advanced Python‑based automation that embeds security gates, secret scanning, policy‑as‑code, and automated remediation into CI/CD pipelines (GitLab, DevOps, Jenkins), and will evaluate emerging tools (e.g., SBOM generators, runtime protection platforms) for enterprise adoption. Authoring clear, detailed security...
Lockheed Martin
Jun 04, 2026
Cyber Security Engineer Technical Lead
Lockheed Martin Littleton, CO
Description: The coolest jobs on this planet... or any other... are with Lockheed Martin Space. At the dawn of a new space age, Lockheed Martin Space is a pioneer, partner, innovator, and builder. Our amazing people are on a mission to make a difference in the world. Every single day, we use our unique skills and experiences to craft, design, and build solutions to some of the world's hardest engineering problems. Our culture inspires our employees to dream big; perform with excellence; and build incredible products. We provide the resources, the support, and the focus. You bring the passion and courage to envision limitless possibilities. Together, we'll build a better tomorrow. Are you ready to further your career in Cyber Security by working for one of the top companies in the world? This new and emerging need is for a Security Operations Information System Security Manager (ISSM) on the SDA Transport Layer T1contract. The ideal candidate will work directly with the...
Lockheed Martin
Jun 02, 2026
Subcontract Management, Sr.
Lockheed Martin Littleton, CO
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. 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. What does this role look like? Lockheed Martin Space is not just about satellites... the Strategic & Missile Defense business area offers growing opportunities to work programs focused on the protection of our nation and allies...
Lockheed Martin
May 29, 2026
Cyber Security Engineer
Lockheed Martin Littleton, CO
Description: The coolest jobs on this planet... or any other... are with Lockheed Martin Space. At the dawn of a new space age, Lockheed Martin Space is a pioneer, partner, innovator, and builder. Our amazing people are on a mission to make a difference in the world. Every single day, we use our unique skills and experiences to craft, design, and build solutions to some of the world's hardest engineering problems. Our culture inspires our employees to dream big; perform with excellence; and build incredible products. We provide the resources, the support, and the focus. You bring the passion and courage to envision limitless possibilities. Together, we'll build a better tomorrow. Are you ready to further your career in Cyber Security by working for one of the top companies in the world? This position is for a Cyber Security Engineer on the SDNX program. As a Cyber Security Engineer supporting the SDNX program, your responsibilities will include: • Conducting cyber risk...
Lockheed Martin
May 28, 2026
Program Security Representative
Lockheed Martin Littleton, CO
Description: Current Top Secret clearance. Exciting Opportunity: Program Security Representative (PSR) We are seeking a highly motivated, detail‑oriented professional to join our team as a Program Security Representative (PSR) at the Waterton Canyon facility – “The Gateway to Space.” You will become part of a strong security‑focused team that supports multiple missions and customers worldwide. In this role you will play a key part in the production, launch, and operation of space‑based assets and programs, helping drive success across our global endeavors. About the Role Classified program exposure: Work on a variety of classified programs for multiple customers, gaining valuable experience and building a well‑rounded skill set. Early‑career acceleration: Ideal for early‑career security professionals; the position offers a unique chance to tackle diverse projects and grow professionally. Security ownership: Ensure the security and integrity of our programs, collaborating...
Lockheed Martin
May 23, 2026
Subcontract Management, Sr.
Lockheed Martin Littleton, CO
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. 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. What is the mission? Lockheed Martin Space is not just about satellites... the Strategic & Missile Defense business area offers growing opportunities to work programs focused on the protection of our nation and allies from a...
Lockheed Martin
May 23, 2026
Contracts Analyst ( TS Clearance Required)
Lockheed Martin Littleton, CO
Description:  What is it like to work in contracts at Lockheed Martin? 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. What does this role look...
Lockheed Martin
May 23, 2026
Sr, Contracts Negotiator ( TS clearance required)
Lockheed Martin Littleton, CO
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. What does this role look like? If you are an enthusiastic, self-starter, eager to learn in...
Lockheed Martin
May 06, 2026
Security Rep
Lockheed Martin Littleton, CO
Description: What We’re Doing: Lockheed Martin Rotary & Mission Systems (LM RMS), Program Security and Compliance invite you to step up to one of today’s most daunting challenges: the protection of exquisite government capabilities leading to warfighter supremacy against our peer and near peer adversaries. As a program security professional at Lockheed Martin, you’ll safeguard the sensitive information and warfighting capabilities that our citizens and the world depend upon to protect U.S. and ally interests. Here, you’ll work alongside other security experts and military members to support their military operational objectives by providing them with a safe and secure operating environment. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep these exquisite capabilities protected. The Work: Duties will include but are not limited to: This position will be assigned to the LM RMS...
Lockheed Martin
Apr 28, 2026
Subcontract Management, Sr.
Lockheed Martin Littleton, CO
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. 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. What does this role look like? Lockheed Martin Space is not just about satellites... the Strategic & Missile Defense business area offers growing opportunities to work programs focused on the protection of our nation and allies...
Lockheed Martin
Apr 16, 2026
Guidance, Navigation & Control Engineer III (Senior) - Top Secret
Lockheed Martin Littleton, CO
Description: About Lockheed Martin Space : 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 About the Team : Our Guidance, Navigation, and Control...
Lockheed Martin
Apr 15, 2026
Integration and Test Engineer
Lockheed Martin Littleton, CO
Description: WHAT WE'RE DOING At Lockheed Martin Rotary and Mission Systems (RMS), we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and visionary thinking, everything is within our reach – and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training and education. We are a dynamic team on a recurring multi- year, critical program seeking a Software Engineer who likes to be challenged and solve problems. WHO WE ARE Intelligence, Surveillance and Reconnaissance (ISR): Harnessing the power of data collection and analysis across air, land, sea and space, thousands of sensors onboard manned and unmanned military platforms are collecting huge amounts of data. These ISR systems task, collect, process, analyze, fuse and disseminate the most mission-critical information. THE WORK As a Integration and Test Engineer you will own the maintenance, installation, and deployment lifecycle for advanced...
Lockheed Martin
Apr 15, 2026
System Integration Analyst
Lockheed Martin Littleton, CO
Description: WHAT WE'RE DOING At Lockheed Martin Rotary and Mission Systems (RMS), we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and visionary thinking, everything is within our reach – and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training and education. We are a dynamic team on a recurring multi- year, critical program seeking a Software Engineer who likes to be challenged and solve problems. WHO WE ARE Intelligence, Surveillance and Reconnaissance (ISR): Harnessing the power of data collection and analysis across air, land, sea and space, thousands of sensors onboard manned and unmanned military platforms are collecting huge amounts of data. These ISR systems task, collect, process, analyze, fuse and disseminate the most mission-critical information. THE WORK As a Integration and Test Engineer you will own the maintenance, installation, and deployment lifecycle for advanced...
Lockheed Martin
Jul 03, 2026
Subcontracts Program Senior Manager
Lockheed Martin Englewood, CO
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. What is the mission? 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. What does this role look like? Lockheed Martin Space is not just about satellites... the Strategic & Missile Defense business area offers growing opportunities to work programs focused on the protection...
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