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47 senior infrastructure engineer jobs found

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Security Clearance senior infrastructure engineer
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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...
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 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...
General Dynamics Mission Systems, Inc
Jun 15, 2026
Senior Network Cyber Engineer
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 2 years of relevant experience; or Master's degree, plus 6 months of relevant experience.   CLEARANCE REQUIREMENTS: : 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 ROLE AND POSITION OBJECTIVES: As a Senior Network and Cyber System Engineer on the MIT team, you will execute cybersecurity operations and network engineering tasks across secure environments. This is a dual-role position split evenly between cybersecurity engineering and network engineering. You will contribute to...
Lockheed Martin
Jun 12, 2026
DevSecOps Engineer, Staff
Lockheed Martin King of Prussia, PA
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 talented level 4 DevSecOps Engineer with an active TS/SCI security clearance to work from either our King of Prussia, PA or Littleton, CO location(s) . This is an MID-SR CAREER (level 4) ROLE where candidates typically require 5+ years of professional...
SAIC
Jun 10, 2026
Senior Python Engineer
SAIC VA
Description Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the Defense Counterintelligence and Security Agency (DCSA). The Air Force Space and Intel Business Group of SAIC is seeking a Senior Python Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies. Specifically, on the DCSA One IT program, SAIC will provide an enterprise IT solution that delivers highly secured and adaptable IT infrastructure, provides customer support, an cutting-edge technologies that...
SAIC
Jun 10, 2026
Senior Cloud Architect Lead with AI Cloud
SAIC VA
Description SAIC is seeking Senior Cloud Architect with AI Cloud. Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities for the Defense Counterintelligence and Security Agency (DCSA). The Air Force, Space & Intel Business Group (AFSI) of SAIC is seeking a Senior Cloud Architect Lead to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies. Specifically, on the DCSA One IT program, SAIC will provide an enterprise IT solution that delivers highly secure and adaptable IT...
SAIC
Jun 10, 2026
Senior Network Engineer
SAIC
Description SAIC is seeking a Senior Network Engineer to support the U.S. Navy's Foreign Military Sales (FMS) C4I modernization program for the Royal Saudi Naval Forces (RSNF) on-site in Jubail, Saudi Arabia . The Network Engineer will design, deploy, operate, and sustain classified and unclassified network capabilities supporting NAVWAR-delivered C4I systems. The selected candidate will lead network engineering for RSNF ashore facilities and waterfront infrastructure in Jubail, coordinate with sister sites across the Kingdom, and interface with U.S. Government and Saudi senior military and government officials. The role demands hands-on network design and operations experience, fluency with network management tooling, and the ability to operate effectively in an austere OCONUS environment. The Senior Network Engineer will be responsible for but not limited to the following duties: Lead network engineering design, deployment, and sustainment for C4I infrastructure...
SAIC
Jun 08, 2026
Senior Apple Platform Engineer
SAIC VA
Description SAIC is seeking a Sr. Apple Platform Engineer to support our DCSA/OneIT program out of Quantico, VA. Introduction Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the Defense Counterintelligence and Security Agency (DCSA). The Air Force Space and Intel Business Group of SAIC is seeking a Senior Apple Platform Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies. Specifically, on the DCSA One IT program, SAIC will provide an enterprise...
Lockheed Martin
Jun 04, 2026
Systems Engineer Stf - Clearance Required
Lockheed Martin Colorado Springs, CO
Description: WHAT WE'RE DOING Lockheed Martin is on the front line of global security, operating, maintaining, and sustaining an Integrated Air and Missile Defense system for a key U.S. international defense partner. In this mission‑critical role we assure 24/7 system readiness, enabling our ally to protect its airspace, safeguard lives, and maintain regional stability. THE WORK As a Network Engineer on this program you will: • Deploy, configure, and maintain routers, switches, firewalls, and network gear in deployable communication kits. • Monitor LAN/WAN performance, troubleshoot connectivity, latency, and packet‑loss issues, and provide on‑call support for critical events. • Implement core networking technologies (VLANs, OSPF, BGP, GRE tunnels, multicast) and contribute to design reviews, upgrades, and project deployments. • Work closely with other engineers to craft network architectures and execute field installations, which may include travel to remote sites and...
SAIC
Jun 03, 2026
Systems Engineer - Platform
SAIC VA
Description SAIC is seeking a skilled and motivated Systems Engineer - Platform to join our MAJESTIC Joint Program Office (JPO) Team in support of an on-premises enterprise IT environment. The primary focus of this role is the design, implementation, operation, and maintenance of enterprise infrastructure and platform services to ensure the seamless performance, scalability, security, and reliability of mission-critical IT systems. In addition to traditional platform services, we are seeking a systems engineer with specific expertise in Kubernetes and containerization technologies to support modernization efforts. The successful candidate will leverage their knowledge of containerized architectures to improve platform scalability, streamline deployments, and enhance system resiliency. This role requires collaboration within a complex enterprise environment of virtualized systems, cloud platforms, Windows infrastructure, and networking services to deliver secure 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...
SAIC
Jun 01, 2026
Senior Network Engineer
SAIC ME
Description SAIC is seeking a Senior Network 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: Design, implement, and maintain network infrastructure to ensure optimal performance, security, and reliability. Configure and manage network hardware and software, including routers, switches, firewalls, and VPN encryption devices, using DoD-approved tools and technologies. Conduct short and long-term capacity analysis for network components, and perform network architecture design, feasibility, and cost studies. Monitor network performance, troubleshoot issues to minimize downtime, and implement security measures to protect network...
Lockheed Martin
May 27, 2026
Senior Full Stack Java Software Engineer - Clearance Required
Lockheed Martin MD
Description: This position is participating in our External Referral Program . If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you'll receive a payment! code-extrefer Senior Full Stack Java Software Engineer - Clearance Required WHAT WE'RE DOING • Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity. • As a Senior Full Stack Software Engineer, you'll be empowered to create "new realities" and pioneer solutions that break boundaries. • Benefit from the support of a global technology leader that values innovative thinking and provides the resources to turn ideas into reality. • Build on our proud legacy of achievement and contribute to shaping the future of aerospace, defense, and security solutions. THE WORK TKO provides systems engineering, software development, data science and cloud development and engineering services to the Cyber Infrastructure...
SAIC
May 27, 2026
VMware Virtual Desktop Engineer
SAIC VA
Description Introduction Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the Defense Counterintelligence and Security Agency (DCSA). The Air Force Space and Intel Business Group of SAIC is seeking a Senior Virtual Desktop Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies. Specifically, on the DCSA One IT program, SAIC will provide an enterprise IT solution that delivers highly secured and adaptable IT infrastructure, provides customer support, and...
Lockheed Martin
May 23, 2026
1LMX DevSecOps, Senior / C++ - Orlando, FL
Lockheed Martin Orlando, FL
Description: Lockheed Martin’s Software Factory, a leader in DevSecOps-driven software engineering serving the aerospace and defense sectors. The Lockheed Martin Software Factory delivers customized solutions to meet the needs of our diverse customers — from commercial to classified — in order to scale across multiple programs. Embedding (Development, Security and Operations) DevSecOps in every step of our software development keeps our clients at the cutting edge of cybersecurity. Secure coding is a fundamental principle behind our DevOps philosophy to make sure the best cyber security practices are considered at every step of development. We are focused on architecting software for frequent delivery. Modular open systems architecture has been key to our systems for many years, and we are using new technologies such as container orchestration with Kubernetes to drive modularity through containerized microservice architecture all the way into the deployed system. Not only does...
Lockheed Martin
May 23, 2026
DevSecOps Engineer, Senior (Active TS/SCI)
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. Are you a Senior DevSecOps Engineer for something different? In this role you will: +...
LMI
May 21, 2026
Senior Software Test Engineer - TS Clearance Required
LMI Colorado Springs, CO
Overview LMI is actively seeking a skilled, experienced Senior Software Test Engineer to join LMI’s Space Market modeling and simulation (M&S) development team in Colorado Springs, CO. This role involves working directly with USSF and US Government customers, as well as analytical partners, to translate wargame, exercise, training, and analytic needs into responsive, high-performance software applications within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR ® .   The ideal candidate is adept at applying systems engineering principles in modern software environments, with strong understanding of software integration and testing, and familiarity with DevSecOps pipelines, CI/CD practices, and cloud-native architectures. Candidates should be comfortable working across disciplines to integrate and test modeling and simulation software in secure environments (both on-prem and cloud-based), collaborating closely with...
SAIC
May 20, 2026
Desktop SCCM Engineer
SAIC VA
Description SAIC is seeking a Sr. Desktop Engineer (SCCM) for a new/exciting program out of Quantico, VA. (Must possess an active TS/SCI and Sec+ Certification.) Pending assigned duties/responsibilities, it is possible to work remote one (1) day a week. Introduction Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the Defense Counterintelligence and Security Agency (DCSA). The Air Force and Combatant Commands Business Group of SAIC is seeking a Senior Desktop Engineer (SCCM) to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000...
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