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554 system engineer jobs found

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Lockheed Martin
Mar 26, 2026
System Engineer for Satellite Operations and Ground Communications
Lockheed Martin Sunnyvale, CA
Description: LM Space National Security Solutions has an open position for system engineering support across multiple areas related to the maintenance, operations, and recapitalization upgrades to a global satellite command and control and ground terminal communication enterprise. The System Engineer for Satellite Operations and Ground Communications will be responsible for contributing technically to a variety of Systems and Software Engineering tasks associated with supporting Operations and Maintenance (O&M) as well as system upgrades. This role will be a key technical member supporting a globally dispersed workforce with a focus on real-time satellite mission operations and longer term mission optimization, including enhancement tasks that expand beyond day to day O&M sustainment. The role will interface across system segments, program management, customers and subcontractors in successful completion of assigned tasks. Maintenance tasks include efforts to investigate...
ECS
Mar 19, 2026
Senior SIGINT System Engineer
ECS GA
ECS is seeking a Senior SIGINT System Engineer to work in our Warner Robins, GA office. ECS is seeking a highly qualified Senior SIGINT System Engineer with an active Top Secret/SCI Clearance to work on our project at Robins Air Force Base, GA. The selected candidate will be able to communicate effectively (written/verbal), possess strong interpersonal skills, be self-motivated, and be innovative in a fast-paced environment. Must hold and maintain a valid Top Secret/SCI Security Clearance. The candidate will be involved with product sustainment, product development, lab support, and engineering services in support of the Operational Flight Program (OFP), Test Program Set (TPS) development and support, Intelligence, Surveillance and Reconnaissance software and Mission Support (MS) business lines. Candidate will assist in evaluating current systems, planning of large-scale system projects, purchasing, installing and support of network communications, including LAN/WAN...
Southeastern Computer Consultants, Inc. (SCCI)
Mar 26, 2026
Junior System Engineer
Southeastern Computer Consultants, Inc. (SCCI) VA
Overview SCCI is currently seeking a Junior Systems Engineer (SE) to join our team! This is an entry-level position that will support the Battle Management System (BMS) modern portfolio of DoD projects. In this role you will interface with multiple engineering technical teams (i.e. Software Engineering, Test, Configuration Management, Training, and Safety) and technical personnel from various external organizations to refine program intent, identify problems, suggest changes, and develop and document final solutions. This is a unique opportunity to learn and engage in the full spectrum of technical collaboration events required for the successful development, modernization, and maintenance of a DoD system critical to our warfighters for outmatching the threats we face around the world. This position is located in Dahlgren, VA . SCCI offers a comprehensive and competitive benefits package including Health, Dental, Vision, Life and Disability benefits, 401k with Company...
ECS
Apr 15, 2026
Information System Security Engineer SME
ECS DC
ECS is seeking an Information System Security Engineer SME to work in our Washington, DC office. Please Note: This position is contingent upon contract award. ECS is seeking an experienced Information System Security Engineer (ISSE) - SME to join our team as an expert in designing, implementing, and maintaining secure information systems. The successful candidate will have a strong background in security engineering, architecture, and risk management, with a focus on protecting sensitive information and systems. Responsibilities Responsible for leading the implementation of the Security Assessment and Authorization (SAA) Program: Lead, mentor, and supervise a team of security professionals responsible for the end-to-end implementation of the RMF lifecycle for Enterprise IT systems. Oversee and coordinate activities within the Prepare step, ensuring roles, responsibilities, and risk management strategies are clearly defined and maintained. Guide system...
SAIC
Apr 15, 2026
Systems Engineer Principal
SAIC VA
Description Join a winning team! Be part of a dynamic team that delivers excellence and quality for the NRO's Systems Engineering Directorate (SED). SAIC is seeking to fill an opening for a Space Enterprise System Engineer to provide Systems Engineering and Technical Assistance (SETA) services to an IC customer. The customer organization we support provides the system enterprise architecting, analysis, and system of systems engineering solutions that determine the current and future national space systems. Make a difference in securing our nation's security through quality engineering and innovation. Responsibilities include but are not limited to: Coordinating and supporting enterprise requirements, CONOPS, and architectures in various domains; supporting enterprise and system level requirements development for future systems; overseeing the allocation and closure of acquisition-level requirements with developers; participation in readiness events in support of...
SAIC
Apr 01, 2026
NASA Mission System Security Risk Assessment Engineer
SAIC WV
Description Description: SAIC is seeking a Senior System Security Engineer (SSE) with extensive space mission and systems domain knowledge to join the NASA Independent Verification and Validation (IV&V) Mission Protection Services (MPS) team and support Mission System Security Risk Assessments (MSSRA) efforts. The Senior SSE will lead system-level security analyses and assessments used to evaluate mission risks across complex spacecraft architectures and operational environments. In this role, the Senior SSE will work closely with the customer and peers to oversee activities analyzing spacecraft architectures, interfaces, and operational behaviors to identify and roll up mission-level vulnerabilities and security risks that arise from system interactions, timing dependencies, and integrated mission environments. The position also supports planning, coordination, and analysis activities across multiple mission protection domains, skills, and efforts. The Senior...
SAIC
Apr 01, 2026
NASA System Security Vulnerability Engineer
SAIC WV
Description Description: SAIC is seeking a Senior System Security Engineer (SSE) to join the NASA Independent Verification and Validation (IV&V) Mission Protection Services (MPS) team and support simulation-based cybersecurity analysis of spacecraft computer systems and mission environments. The Senior SSE will guide the development and execution of models and simulations used to identify and analyze hardware and software vulnerabilities across integrated space system architectures. The Senior SSE experience with spacecraft software and hardware will be utilized to identify and prioritize potentially vulnerable components. Working alongside a Junior Computer Engineer / Software Developer and a senior Computer/Software Engineer, the Senior SSE will identify and investigate hardware and software system components, interfaces, interactions, attack surfaces, and vulnerabilities through modeling, simulation development, and test case execution. This role will also provide...
Lockheed Martin
Mar 31, 2026
System Security Engineering Integration Engineer
Lockheed Martin Littleton, CO
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space. Are you looking for an exciting career at one of the top Aerospace and Defense Companies? A fulfilling position that challenges your mind, grows your skills, and contributes to our nation’s most critical missions is right in front of you! At Lockheed Martin Space, we advance the frontiers of science and solve problems that others think are impossible. We have challenging missions that will inspire and innovate! As we enter a new era of Strategic Weapon Systems, Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people are on a mission to make a difference in the world and every single day we use our unique skills, talents, and experiences to design and build solutions to some of the world’s hardest engineering problems. Do you want to be part of a culture that inspires employees to envision the impossible, perform with excellence and build incredible products? We...
Lockheed Martin
Mar 25, 2026
Cyber System Security Engineer
Lockheed Martin Orlando, FL
Description: What We're Doing At Lockheed Martin, we are pushing the boundaries of innovation to solve some of the world’s most complex challenges. In our Aeronautics division, we are focused on advancing security and resilience for critical defense systems, with a particular emphasis on Training & Logistics systems. Our team is dedicated to applying cutting-edge cybersecurity solutions that safeguard the integrity of systems throughout their lifecycle. We are passionate about ensuring that these systems remain resilient to evolving cyber threats. What Will You Be Doing: As a Cyber Systems Security Engineer, you will play a vital role in securing the backbone of mission-critical systems. Your responsibilities will include: • Designing and developing cybersecurity solutions that span the entire system lifecycle, from initial planning to final validation. • Conducting risk assessments, including threat modeling and vulnerability analysis, to evaluate and address potential...
SAIC
Mar 25, 2026
Systems Engineer
SAIC VA
Description SAIC has a need for a Systems Engineer position to support the Naval Surface Warfare Center Fleet Support, Branch at Dahlgren, Virginia. The successful candidate will participate in verifying the Operating Systems and Networks are specification compliant expertise installing, configuring, and troubleshooting Network Operating System with emphasis for time critical redundant paths and devices. Must be able to interpret network configurations, and demonstrate expertise installing, configuring, and troubleshooting Network Operating System with emphasis for time critical redundant paths and devices. The position requires competence in operational techniques and familiarity with Tactical Operating Environment, knowledge of Computer Operating Systems, UNIX/Linux, and Computer Networks practices. The candidate will work with Tactical Operating Environment, in support of Weapon System certification, testing, in laboratory and at-sea, deployment of software, and fleet...
SAIC
Mar 25, 2026
Link 16 Senior Systems Engineer
SAIC AL
Description SAIC is seeking a Link 16 Senior System Engineer to support the development and refinement of the Interoperability Engineering System (IES), a mission-critical application used by the U.S. Army for Link 16 scenario generation, scripting, and data analysis. The Link 16 Senior System Engineer will be responsible for defining system requirements and ensuring compliance with military standards, specifically MIL-STD-6016 and MIL-STD-3011, to support the software development process. This position is onsite at Redstone Arsenal in Huntsville, AL. This position requires an experienced systems engineer capable of translating operational objectives, military standards, and stakeholder needs into clear, actionable requirements for software developers. Responsibilities: Develop, document, and refine system requirements aligned with operational needs and military standards, including MIL-STD-6016 and MIL-STD-3011. Translate military standards and protocols into...
Lockheed Martin
Mar 16, 2026
Cyber System Security Engineer
Lockheed Martin Herndon, VA
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? The Kayenne program is seeking a Cyber Security Engineer technical lead for the Program’s Cyber Team. This team is responsible for applying an interdisciplinary, collaborative approach to plan,...
LMI
Mar 16, 2026
Information System Security Engineer (ISSE) AWS Cloud Security - Clearance Required
LMI NC
Overview LMI is seeking a skilled Information System Security Engineer (ISSE) with hands-on experience in AWS cloud security to provide advanced cybersecurity engineering and Risk Management Framework (RMF) support for Department of Defense (DoD) cloud-based systems. This position focuses on designing, implementing, and maintaining secure AWS environments aligned with DoD Cloud Computing Security Requirements Guide (CC SRG), NIST SP 800-53, and DISA STIGs/SRGs to support Authorization to Operate (ATO) efforts.   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,...
SAIC
Mar 11, 2026
Information System Security Engineer
SAIC VA
Description SAIC is seeking an Information System Security Engineer (ISSE) to provide information security support. This position is in McLean, VA and requires an active TS/SCI clearance with Polygraph . This Customer's office is the force of choice for the development of global infrastructure and delivery of solutions that drive influence operations. If you have specialized skills in information security and tech ops, this is the role for you. Job responsibilities include, but are not limited to: Support the Lifecycle Assessment and Authorization (A&A) process. Develop a Systems Security Plan (SSP). Assist and maintain a formal Information Security Program that includes recommendations on continuous improvement of the processes and architectures. Maintain and make accessible documentation of all operational and business process activities in the form of Standard Operating Procedures (SOPs). Monitor and track projects in the A&A queue....
SAIC
Mar 11, 2026
Systems Engineer Sr Principal
SAIC VA
Description Join a winning team! Be part of a dynamic team that delivers excellence and quality for the NRO's Systems Engineering Directorate (SED). SAIC is seeking to fill an opening for a Space Enterprise System Engineer to provide Systems Engineering and Technical Assistance (SETA) services to an IC customer. The customer organization we support provides the system enterprise architecting, analysis, and system of systems engineering solutions that determine the current and future national space systems. Make a difference in securing our nation's security through quality engineering and innovation. Responsibilities include but are not limited to: Coordinating and supporting enterprise requirements, CONOPS, and architectures in various domains; supporting enterprise and system level requirements development for future systems; overseeing the allocation and closure of acquisition-level requirements with developers; participation in readiness events in support of...
Lockheed Martin
Feb 10, 2026
Systems Engineer MBSE Integrator Sr. Staff - SE&IT
Lockheed Martin Huntsville, AL
Description: WHAT WE'RE DOING • Advancing the Integrated Discrimination and Electronic Protection capabilities of the Missile Defense System (MDS) • Leading systems engineering trades, analysis, and studies related to requirements generation • Developing and delivering MDS capabilities and engineering artifacts into the Technical Baseline (TBL) THE WORK • The successful candidate will lead efforts to integrate Model Based Systems Engineering (MBSE) capabilities and tools within the System Design and Requirements (SD&R) capability team, as well as coordinating MBSE efforts across other program and customer teams. This includes taking an administrative role with the program’s model and metamodel, hosted in Cameo. • Collaborative efforts include integrating the program model with customer models at multiple levels and adding additional capabilities to the functional model, such as Reliability/Availability/Maintainability (RAM) analysis and parametric integration of numerical...
SAIC
Apr 01, 2026
Satellite Program Office Lead
SAIC VA
Description Join a winning team!! SAIC's Air Force, Space and Intelligence Business Group (AFSI BG) is currently hiring to advance space capabilities supporting our Department of Defense (DOD) customers. Ten miles from the SAIC headquarters, our Chantilly, VA team supports systems acquisition & development, targeting & intelligence analysis, systems engineering & integration and more. This position is for a Satellite Program Office Lead for a large, multi-year contract supporting cutting-edge and innovative space programs. The Satellite Program Office Lead partners with the Government Program Manager to lead a proven technical team of acquisition leads, system engineers, satellite subject matter experts, and operations staff. In partnership with the Government and SAIC Program Management Team, the Satellite Program Office Lead advises on programmatic, strategic, technical, and staffing decisions to guide the successful acquisition and operations of a critical space...
LMI
Apr 01, 2026
Product Support SME
LMI Wright-Patterson Air Force Base, OH
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.   This role will support USAF acquisition logistics digital transformation utilizing cutting-edge technologies as well as streamlining and accelerating logistics processes using Agile methodologies....
SAIC
Mar 25, 2026
Satellite Program Manager
SAIC VA
Description Join a winning team!! SAIC's National Security and Space (NSS) Sector is currently hiring to advance space capabilities supporting our Department of Defense (DOD) and Intelligence Community customers. Ten miles from the SAIC headquarters, our Chantilly, VA team supports systems development, targeting & intelligence analysis, systems engineering & integration and more. This position is for a Satellite SETA Program Manager for a large, multi-year contract supporting a cutting-edge and innovative space program. The Satellite SETA Program Manager must possess, and have successfully demonstrated, Contracts Office Technical Representative expertise, experience managing cost, schedule, and technical performance. Requires excellent oral and written communication skills, problem-solving skills, and the interpersonal skills. The Satellite SETA Program Manager will partner with the Government PM and subsystem Subject Matter Experts (SME) to effectively plan, organize...
General Dynamics Mission Systems, Inc
Apr 19, 2026
Systems Engineer – Entry Level
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor’s degree in Systems Engineering, or a related Science, Engineering or Mathematics field. Agile experience preferred.   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 Key Responsibilities: Support systems engineering activities for submarine combat system products, including requirements management and documentation Collaborate with multidisciplinary teams including hardware, software, and cyber-security engineers Assist with requirements traceability, design reviews, and technical communication to development teams Participate in agile team activities and help...
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