304 software systems engineer jobs found

Description SAIC is seeking a Software Systems Engineer to own full stack development and technical maturation of a government software prototype as it transitions from research/prototype status to a Program of Record (PoR) for our customer site in North Charleston, SC. Job Duties: Resilient System Design: Develop distributed systems for secure, reliable operation in degraded, bandwidth-limited, and autonomous environments. Full-Stack Development: Build and maintain backend services, frontend applications, and infrastructure, hardening prototypes to meet DoD security, scalability, and operational standards. Data Security & Compliance: Implement secure data pipelines and protocols, ensure RMF compliance, support ATO accreditation, and follow secure development practices like container hardening and CI/CD security. Networking & Integration: Design segmented networks, real-time communications, hardware integration, and modular deployments for...

Description SAIC is seeking a Software Systems Engineer to own full stack development and technical maturation of a government software prototype as it transitions from research/prototype status to a Program of Record (PoR) for our customer site in North Charleston, SC. Job Duties: Resilient System Design: Develop distributed systems for secure, reliable operation in degraded, bandwidth-limited, and autonomous environments. Full-Stack Development: Build and maintain backend services, frontend applications, and infrastructure, hardening prototypes to meet DoD security, scalability, and operational standards. Data Security & Compliance: Implement secure data pipelines and protocols, ensure RMF compliance, support ATO accreditation, and follow secure development practices like container hardening and CI/CD security. Networking & Integration: Design segmented networks, real-time communications, hardware integration, and modular deployments for...

Basic Qualifications Education Requirements: Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 5 years of relevant experience; or Master's degree, plus a minimum of 3 years of relevant experience.   Clearance Requirements: Department of Defense Secret security clearance is required at time of hire.  Top Secret preferred.  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:   Developing mission-critical systems that help keep people safe is what we do. At General Dynamics Mission Systems, you’ll be part of the team that helps heroes make a true impact. The work we do is important. The challenges we...

Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience.   CLEARANCE REQUIREMENTS: Ability to obtain a Department of Defense TS/SCI 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:   Developing mission-critical systems that help keep people safe is what we do. At General Dynamics Mission Systems, you’ll be part of the team that helps heroes make a true impact. The work we do is important. The challenges we face are...

Standard Job 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 skilled Level 3 Systems Engineer with an active TS/SCI security clearance to work from our Herndon, VA location . Stormbreaker Operations team is seeking a...

Overview LMI is seeking an experienced Cloud Engineer with strong DevSecOps expertise to support a U.S. Army enterprise program. This role will design, build, and operate in a secure cloud infrastructure and CI/CD pipeline environment that power mission-critical Army systems and platforms. This position will be accountable for the availability, security, and performance of the environments the Army's teams rely on to support their enterprise systems.   This position requires an active Secret security 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...

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. DLH is dedicated to the idea that “Your Mission is Our Passion” and brings a unique combination of government sector experience, proven methodology, and unwavering commitment to innovation to improve the lives of millions. Overview DLH is seeking a DevSecOps Engineer to join our team.  The DevSecOps Engineer will be responsible for designing and implementing cybersecurity solutions across enterprise cloud, on-premise, and hybrid...

Description SAIC is seeking a Physics Based Simulation Software Acquisition Engineer to join the Air Force, Space and Intelligence Business Group providing systems engineering and technical advisory services to a rapidly expanding Government Intelligence Community (IC) customer. The customer is developing the next generation of space and ground systems, architectures, and hardware and software solutions. The Physics Based Simulation Software Acquisition Engineer will serve as a subject matter expert (SME) to support physics-based modeling and simulation efforts for satellite system resiliency. As a key member of our on-site SETA team, the position plays a vital role in contributing to delivery of space protection capabilities into operations. The Physics Based Simulation Software Acquisition Engineer responsibilities include, but are not limited to: • Works in a collaborative team environment studying and analyzing a wide variety of problems in the Space domain. •...

Overview LMI is seeking a Platform Engineer to design, deploy, operate, and sustain secure cloud-native platform capabilities for a Department of War mission partner. This remote role will focus on Amazon Web Services (AWS)-hosted Kubernetes environments that connect to and operate within the Department of Defense Information Network (DODIN). The Platform Engineer will support platform architecture, infrastructure automation, container orchestration, application onboarding, cybersecurity compliance, observability, troubleshooting, and continuous service improvement. The ideal candidate is a hands-on engineer who can translate mission and application requirements into reliable, repeatable, secure, and supportable platform services. 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...

Overview LMI is seeking a highly skilled DevSecOps Engineer to support Army Acquisition, Training, and Readiness (AT&R) in the sustainment and enhancement of the Army Contract Writing System (ACWS). ACWS is built on the Appian Platform. This position will enable secure, repeatable delivery by designing and maintaining CI/CD pipelines, automating infrastructure provisioning, integrating security controls, and supporting scalable cloud and containerized environments. The ideal candidate is comfortable working across development, infrastructure, and cybersecurity disciplines and can translate evolving requirements into clean, scalable, secure technical implementations while supporting an Agile delivery environment. 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...

Standard Job 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 FBM Program is experiencing significant growth, and we are...

Standard Job 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 Lockheed Martin FBM System Integration Sustainment Team...

Standard Job 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.  Fleet Ballistic Missiles (FBM) is one of Lockheed Martin’s outstanding...

Description Make a difference for national security by joining a team of dedicated professionals in El Segundo, CA who assist the US Space Force in developing and deploying the satellites and ground systems for Nuclear Detection System (NDS) capabilities. These systems provide timely and critical nuclear detection data to our warfighter to ensure national security mission success. Our Systems Engineering & Integration (SE&I) team has an immediate need for a hybrid Principal Nuclear Detection System Engineer (USNDS) in El Segundo, CA with mission experience in space/ground systems for the management, development, and deployment of NDS systems to ensure on-time delivery of capabilities. As a SE&I professional, candidates will provide System Engineering (SE) services across all SE disciplines with emphasis in integration and test toward delivering operational capabilities into an enterprise system architecture. Job Responsibilities: Provide Systems...

Description SAIC is seeking a Sr. Apple Platform Engineer to support our DCSA/OneIT program out of Quantico, VA. This position requires a TS Clearance and a Sec+ certification. 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...

Description SAIC is currently hiring a System Engineer at Ft Belvoir, VA. Job Duties : Support the modernization and integration of the Intelligence Foundation layer aligning sensors, data, and analytics with command requirements of the US Army Intelligence and Security Command (INSCOM) needed to execute Multi-Domain Intelligence. Maintain responsibility for assessment and estimation of gap analysis, requirements, development, test, and deployment of products and systems. Work closely with customers, senior leadership within programs, and other systems engineers and development engineers to comprehend customer objectives and requirements and develop solutions from the conceptual stage through delivery and field deployment. Comprehend customer objectives, CONOPS, and requirements and translate those requirements into an executable development plan. Responsible for overseeing system definition and implementation in support of an overall system architecture for...

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 Intelligence Business Group of SAIC is seeking a Network Architect SME 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...

Description SAIC is seeking two experienced Information Systems Security Engineers (ISSEs) to support the MAJESTIC Joint Program Office (JPO) -one serving as a traditional enterprise ISSE and one serving as a specialized Edge ISSE focused on tactical-edge environments. Together, these engineers will lead advanced security engineering and architecture efforts for MAJESTIC's mission-critical systems, including those operating in distributed, low-bandwidth, intermittently connected, and operationally constrained mission scenarios. The Enterprise ISSE will design, develop, implement, and validate security architectures for MAJESTIC's core systems and enterprise environments, ensuring security controls are integrated throughout the full engineering lifecycle-from requirements and high-level architecture through deployment, sustainment, modernization, and ATO maintenance. The Edge ISSE , leveraging the job functions described in ISSE_Edge, will engineer cybersecurity...

Description SAIC is looking for a Cybersecurity Engineer to support our team at Crane NSWC in Crane, IN. Candidates will be required to Lead the development, update, and submission of the RMF packages inside government repositories (e.g., eMASS). Conducts security control assessments, draft Plans of Action and Milestones (POA&Ms), and maintains system continuous monitoring strategies. Performs automated and manual vulnerability assessments using tools like ACAS (Nessus) and SCAP. Serves as the primary bridge between the software development/systems engineering team and the Information System Security Manager (ISSM). Assists in analyzing security logs, detecting anomalies, and providing system-level technical support during incident response or forensic investigations. Applies system security engineering principles to implement secure designs, secure configurations, and boundary defenses (firewalls, IDS/IPS, access controls)....

Description SAIC is seeking an experienced Information Systems Security Engineer (ISSE) to support the MAJESTIC Joint Program Office (JPO) by performing advanced security engineering and architectural design for mission-critical IT systems. In this role, the ISSE will lead the design, development, implementation, and validation of security architectures , ensuring all security controls are integrated into system engineering processes across the full lifecycle-from requirements development to deployment and sustainment. The ISSE will collaborate closely with program leadership, system owners, developers, ISSMs/ISSOs, enterprise architects, and cybersecurity operations teams to ensure systems meet federal security requirements, including NIST 800-53, RMF, and customer-specific A&A frameworks such as ICD 503 and DAAPM. This role requires on-site support in Springfield, VA . Key Responsibilities: Design and engineer secure system architectures, integrating...