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352 security clearance jobs found in Fort Belvoir, VA

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security clearance Fort Belvoir, VA
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LMI
Jun 07, 2026
Policy and Security Cooperation Advisor - Clearance Required
LMI Arlington, VA
Overview LMI is seeking a skilled Policy and Security Cooperation (SC) Advisor at a customer site in the Washington, DC area. A successful candidate will demonstrate competency in project execution, leadership critical thinking, and relationship management, while upholding the highest standard of ethical behavior.   This position requires you to be at the Pentagon 3-4 days a week.   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...
Lockheed Martin
Jun 12, 2026
Satellite Mission Engr Sr
Lockheed Martin Fort Belvoir, VA
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...
LMI
Jun 08, 2026
Technical Program Manager - Clearance Required
LMI Fort Belvoir, VA
Overview The Lead Technical Advisor will play a pivotal role in the successful implementation of a modernization effort for a key US Army client. This position requires a seasoned professional with a deep understanding of cloud technologies, Army standards, and the ability to coordinate development efforts to ensure alignment with Army requirements and capabilities. The Lead Technical Advisor will   be required   to connect deep technical implementations with high-level, non-technical leadership to connect solutions to mission requirements while moving fast,   building   and deploying while communicating, driving consensus,   team building   and owning an end-to-end solution process with our client.  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...
Lockheed Martin
Jun 02, 2026
Satellite Mission Engr Staff
Lockheed Martin Fort Belvoir, VA
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
Jun 02, 2026
Product Quality Engineer/ Automation Specialist (Clearance Rq'd)
Lockheed Martin Fort Belvoir, VA
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 Product Quality Engineer with a TS/SCI w/ Poly clearance to work from our Fort Belvoir, VA location . Lockheed Martin is seeking an Engineer for the Product...
LMI
Jun 01, 2026
Database DevOps Engineer - Clearance Required
LMI Fort Belvoir, VA
Overview LMI is seeking a   Database DevOps Engineer to be part of a team that is designing and developing complex, cloud-based systems. This position requires an   Active Secret Clearance.   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 drive lasting value....
Lockheed Martin
May 06, 2026
System Administrator Sr. - Springfield, VA
Lockheed Martin Springfield, VA
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. The Erebus Program is a newly awarded 7-year effort that delivers cutting-edge...
LMI
May 27, 2026
Junior Project Manager (DASW, LOG) - TS/SCI required
LMI Alexandria, VA
Overview LMI is seeking a Junior Project Manager to support our team within the Deputy Assistant Secretary of War for Logistics office. Communication with the organization’s senior-level staff and collaboration with a broad range of personnel is required. The position will be located at the Mark Center in Alexandria, Virginia. This position requires an active TS/SCI clearance.   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...
LMI
Jun 09, 2026
Data Scientist (Vantage) - Clearance Required
LMI Arlington, VA
Overview LMI is seeking a Data Scientist to   assist  with Army data model , pipeline, and visualization  development .  Th is  Data Scientist will create  data model s  working from mock visualizations and raw data inputs ; leverage python,  PySpark , Foundry, and code repositories to develop an ar chitecture plan ;  extract, transform, and load data into Vantage; and  use  Vantage  workshops  to develop visualizations. Active Secret clearance required .   Location: Hybrid; at least 3 days on client site in Crystal City VA or Aberdeen MD. Open to Remote   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...
LMI
May 14, 2026
Data Engineer (Vantage) - Clearance Required
LMI Arlington, VA
Overview LMI is seeking a Data Engineer to build the pipelines that power Army leadership decisions. You will transform raw data from authoritative Army sources into structured, actionable "Objects" within the Vantage (Palantir Foundry) environment.   Focus: Scaling data pipelines and ontology management within the Army Vantage/Advana ecosystem.   Active Secret clearance required .   Location: Hybrid; at least 3 days on client site in Crystal City VA or Aberdeen MD   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...
LMI
Jun 12, 2026
Operational Technology and Control Systems Cybersecurity Program Analyst
LMI Arlington, VA
Overview LMI is seeking an Operational Technology and Control Systems Cybersecurity Program Analyst to   provide consulting, program administration, and operational technology cybersecurity subject matter expertise to support the development of a leading new Enterprise-level Control System Cybersecurity Program Office. The role will blend the aforementioned skill sets to support Office leadership and Senior Advisor in the creation, implementation, and oversight of a controls-related cybersecurity risk management program for a large government client. Candidates may need to be available to work onsite in Arlington, VA . ​   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,...
LMI
Jun 12, 2026
SCRM – All-Source Supply Chain Risk
LMI Arlington, VA
Overview 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 drive lasting value.   The Supply Chain Risk Management (SCRM) Analyst will support Department of War (DoW) supply chain, industrial base, and logistics initiatives by conducting comprehensive all-source risk...
Lockheed Martin
Jun 09, 2026
National Security Space Senior Manager
Lockheed Martin Arlington, VA
Description: The National Security Space Senior Manager is a member of the Lockheed Martin Government Affairs (LMGA) staff responsible for providing an integrated customer facing capability for the long-term growth of Lockheed Martin. As a member of the Washington LMGA team, this position is responsible for developing close, executive-level working relationships with United States Government customers and stakeholders in the Washington DC area, including the Space Force, OSW staffs in the Pentagon, and OMB and NSC staff in the White House to facilitate the discovery, evaluation, qualification, and development of new business opportunities and “keep sold” activities on programs of record. This portfolio will focus on broad, cross-functional campaign development and execution across the full range of national security space missions, consistent with the evolving US government approach to national security space. This individual must be familiar with current national security...
Lockheed Martin
Jun 09, 2026
Senior Manager – Science & Technology (S&T) Programs
Lockheed Martin Arlington, VA
Description: We are seeking a highly skilled and knowledgeable S&T Senior Manager to join our Government Affairs team. This position will play a critical role in shaping Lockheed Martin initiatives within the Department of War (DoW) technology landscape. The ideal candidate will possess deep insight into DoW technology development organizations and processes, as well as a keen understanding of emerging defense technologies and missions. The manager will be a key advisor to Lockheed Martin Business Areas, enabling strategy development, opportunity identification, and stakeholder engagement throughout the development and acquisition lifecycle. ________________________________________ Key Responsibilities: • Provide expert-level insight and analysis on DoW S&T organizations including OSW/Service laboratories, rapid capability offices, and commercial tech accelerators for defense. • Advise business areas on customer needs and trends to inform Internal R&D (IRAD) and...
Lockheed Martin
Jun 09, 2026
Automatic Test Systems Business Development Senior Staff
Lockheed Martin Arlington, VA
Description: Lockheed Martin is a global leader in aerospace and defense, delivering innovative solutions that keep our nation safe. Within the Rotary and Mission Systems (RMS) – Training, Logistics, and Simulation (TLS) Line of Business, we provide cutting edge test equipment, logistics, training, and simulation solutions to customers worldwide. We are seeking an Enterprise Logistics & Test Solutions (ELTS) Business Development – Senior Staff member to shape the future of our Automatic Test Systems (ATS) portfolio and drive growth in a highly competitive environment. The ELTS Business Development Senior Staff member will formulate and execute the business strategy for the ATS product lines, including: • eCASS – electronic Consolidated Automated Support System • LM-CORE™ • LM-STAR® • Portable Testers Key responsibilities include identifying new growth opportunities, managing the opportunity pipeline, and fostering deep customer engagement—both domestically and...
LMI
Jun 09, 2026
Program Manager - Navy (LMI PM) - Clearance Required
LMI Arlington, VA
Overview LMI is seeking a Program Manager with demonstrated competency in Supply Chain Management and Optimization, Risk Management, Data Analytics, Project Execution Leadership, Relationship Management and Business Growth. This position is on-site in Arlington, VA and requires an active Secret clearance.   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...
LMI
Jun 02, 2026
Transportation and Distribution Specialist (Clearance Required)
LMI Arlington, VA
Overview 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 drive lasting value. Responsibilities LMI is seeking a skilled Transportation and Distribution Specialist to work in the Army G-4 in the Pentagon in Arlington, VA . Successful LMI...
Lockheed Martin
May 28, 2026
Administrative Assistant Senior
Lockheed Martin Arlington, VA
Description: Responsibilities include: •Administrative support for Senior Manager in the Joint Affordability War Room (AWR). The AWR is a collaborative workspace where F-35 Joint Program Office, Pratt & Whitney and Lockheed Martin work together. This role is responsible for coordinating the standard activities that are derived from the AWR and interfacing with internal and external personnel from varying companies, US Services at many levels. •Manage dynamic multi-disciplinary schedule via Microsoft Outlook with rapid notification of schedule changes. The schedule includes office activities, conference rooms and visitation schedules. •Anticipate and coordinate with Program Manager regularly for near term and long term staff actions. •Support front office and staff meeting agenda coordination. Will attend and take minutes and create action items as required. •As needed, arrange domestic and international travel and Prepare expense travel reports. •Manage multiple audiovisual...
Lockheed Martin
May 27, 2026
Senior Staff Project Engineer
Lockheed Martin Arlington, VA
Description: Lockheed Martin Corporation seeks a Project Engineer, Senior Staff to lead cross-functional business initiatives to include Governance, Tracking & Closure of projects to directly support the enterprise-wide transformation agenda with a focus on U.S based solutions that consider impact to the non-US international audience. Support Enterprise Business and Digital Transformation efforts through implementation, strategy, and integration with existing systems to create a competitive advantage and drive the strategic objectives of the U.S based Executive Leadership Team. Coordinate integration initiatives to ensure new business capabilities are delivered on time, within budget, and aligned with broader business needs. Oversee risk mitigation, schedule synchronization, and resource availability as well as stakeholder alignment across multiple functions and geographically dispersed organizations. Function as the primary point of contact for VP level and U.S Based...
LMI
May 24, 2026
Senior Planning, Programming & Budgeting Analyst - Clearance Required
LMI Arlington, VA
Overview LMI is seeking a PPBE Consultant at Headquarters, Department of the Army, at the Pentagon. The PPBE Analyst will support Planning, Programming, Budgeting, and Execution (PPBE) activities and be part of a team that includes Sr. Data Analysts and Resource Management/PPBE specialists. The candidate will analyze data from various databases and collaborative programs used within the G-8: cPROBE, and APMS. The candidate must be able to work autonomously, set high standards for personal performance, have strong organizational skills, be detail oriented, able to work with minimal guidance, and able to translate the data/information to recommendations at the strategic-level that may reach a 3-star/4-star GO/SES level. The position requires a DoD Secret clearance.   This position will be onsite at the Pentagon 5 days a week.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing...
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