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37 principal systems engineer jobs found

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214 principal systems engineer
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SAIC
Apr 15, 2026
Principal Systems Engineer
SAIC VA
Description SAIC is seeking a highly skilled Principal Systems Engineer to take a leadership role in the design, development, and integration of complex software systems. This position requires deep expertise in software architecture, systems engineering, and large-scale software integrations. As a Principal Systems Engineer, you will be responsible for driving the technical direction, leading design efforts, and overseeing the delivery of high-performance, secure, and scalable systems to the Department of the Air Force's (DAF) Integrated Fires Command and Control Command and Control (DIFC2) Program. This position will lead collaboration with cross-functional teams to ensure seamless integration of software, hardware, and network components. The successful candidate will have excellent communication, organizational and problem-solving skills. They will be expected to continually balance and adjust work priorities to meet short deadlines. This position is ONSITE in Reston, VA...
SAIC
Apr 15, 2026
Principal Systems Engineer P
SAIC CA
Description SAIC seeks an experienced and energetic Principal Systems Engineer to directly support the modernization of the space launch ranges, meeting mission requirements, providing range capabilities, and supporting the Assured Access to Space (AATS) mission. The overarching purpose of the program is to perform system modernization and digital transformation projects that will enable the acceleration of the space launch cadence to enable the Spaceport of the future. This position is located in Santa Maria, CA. Job Responsibilities: • Providing system-level engineering support and expertise to a cross-functional team. • Providing preliminary solutions to engineering problems of moderate scope and complexity in an expeditious, efficient, and timely manner. • Identify and apply current and emerging Digital Engineering practices, methods, and tools to address our sponsor and partners' most pressing challenges. • Apply knowledge and principles of agile acquisition,...
SAIC
Apr 15, 2026
Principal Systems Engineer
SAIC CA
Description Principal Systems Engineer SAIC - San Diego, CA About SAIC Science Applications International Corporation (SAIC) is a premier technology integrator solving our nation's most complex modernization and readiness challenges. In the maritime and naval domain, SAIC delivers advanced autonomous systems, AI/ML solutions, and mission-critical technologies to support the warfighter. Our San Diego presence places us at the heart of Naval Information Warfare and cutting-edge maritime autonomy development. Your Impact As a Principal Systems Engineer you will directly in support U.S. Navy programs by developing and integrating autonomous systems, computer vision solutions, and real-time analytics for unmanned maritime platforms. You will work alongside engineers and technicians to deliver mission-critical capabilities and push the future of cutting edge technologies. JOB DUTIES: Autonomous Systems & Integration Support and lead integration...
SAIC
Apr 08, 2026
Principal Systems Engineer
SAIC FL
Description SAIC seeks an experienced and energetic Principal Systems Engineer to directly support the modernization of the space launch ranges, meeting mission requirements, providing range capabilities, and supporting the Assured Access to Space (AATS) mission. The overarching purpose of the program is to perform system modernization and digital transformation projects that will enable the acceleration of the space launch cadence to enable the Spaceport of the future. These position is located in Cape Canaveral, Florida. Job Responsibilities: • Providing system-level engineering support and expertise to a cross-functional team. • Providing preliminary solutions to engineering problems of moderate scope and complexity in an expeditious, efficient, and timely manner. • Identify and apply current and emerging Digital Engineering practices, methods, and tools to address our sponsor and partners' most pressing challenges. • Apply knowledge and principles of agile acquisition,...
ECS
Apr 01, 2026
Principal Systems Engineer II (Unix/Linux)
ECS ID
ECS is seeking a Principal Systems Engineer III (Unix/Linux) to work in our Pocatello, ID office . The Contractor shall be responsible for the design, deployment, testing, certification, patching, addressing interoperability issues, not only of the base operating system, but for all support libraries, components, and application dependencies. Position requirements and duties of the Principal Systems Engineer II (Unix/Linux) S erve as the advanced knowledge expert for all Linux environments. C reate and maintain bare-metal and virtual machines with the appropriate distribution of Linux and network configuration, using tools that include Satellite Server, Ansible and BigFix. P rovision/configure the required software onto servers, such as web servers and databases. E valuate, improve, and maintain the information security throughout the Linux infrastructure. M onitor and correct server issues and process for failures and performance bottlenecks....
ECS
Mar 19, 2026
Principal Systems Engineer - Embedded Tactical Software
ECS VA
ECS is looking for a Principal Systems Engineer - Embedded Software Engineer to work Onsite in Arlington, VA. The Principal Systems Engineer will provide senior-level technical oversight, quality assurance, and lifecycle governance for embedded tactical software supporting Department of Defense and Navy weapon and combat systems. This is a principal individual-contributor role focused on reviewing, validating, and auditing embedded software and engineering decisions-not people management or day-to-day software development. The ideal candidate has deep experience in safety-critical, highly regulated environments such as missile systems, Aegis or Navy combat systems, or other real-time defense platforms, and brings the technical judgment needed to independently assess software quality, integration impacts, and engineering rigor. What You'll Do Serve as a senior technical authority on Change Control Boards (CCBs) governing embedded software updates and configuration...
ECS
Mar 19, 2026
Principal Systems Engineer III (Network)
ECS WV
ECS is seeking a Principal Systems Engineer III (Network) to work in our Pocatello, ID or Clarksburg, WV office . The candidate shall be responsible for design, deployment, testing, certification, patching, and addressing interoperability issues for all features, components, and application dependencies . This include s switches, firewalls, load balancers, software defined networking, private cloud requirements, etc. Position requirements and duties of the Principal Systems Engineer III (Network): D esign, implement , and provide ongoing support of the Networking Infrastructure within and between data centers. S erve as the advanced matter expert for all data center network environments. C reate and maintain network infrastructure for both bare metal and virtual machines with the appropriate LAN , WAN, vLAN , SDN , firewall and load balancer configurations, using both OEM and third-party tools that include virtual network tools (NSX) and services....
SAIC
Mar 11, 2026
Principal Systems Engineer
SAIC UT
Description SAIC is seeking an exceptional Principal Systems Engineer to provide critical interface management and integration support to one of the Department of Defense's most complex and vital acquisition efforts - the Sentinel Intercontinental Ballistic Missile (ICBM) Program. This position offers a unique opportunity to contribute to the modernization of the U.S. Air Force's land-based strategic deterrent, ensuring its operational readiness and sustainability well into the 21st century. This position is located at Hill AFB, UT. The Sentinel ICBM Program, formerly known as the Ground Based Strategic Deterrent (GBSD), is a massive, multi-faceted initiative to replace the aging LGM-30G Minuteman III weapon system. This career-defining program involves designing and integrating advanced ballistic missile systems, refurbishing or replacing key infrastructure, and fielding state-of-the-art command, control, and support systems. As a Senior Systems Engineer, you will provide...
SAIC
Apr 08, 2026
Space Systems Engineer Principal
SAIC VA
Description SAIC is seeking a motivated and detail-oriented Principal Systems Engineer to support ESR execution, extended mission activities, and activation opportunities. In this role, you will bridge mission science objectives with engineering solutions, playing an integral role in planning, integrating, and executing key milestones throughout the mission lifecycle. The ideal candidate will work directly with the Mission Science Team to ensure mission-critical objectives are met. This includes participating in mission planning, managing engineering processes, and supporting the transition of systems from primary to extended mission phases. Your contributions will help ensure operational success in complex mission environments. Key Responsibilities: ESR Execution and Extended Mission Activities Lead ESR Execution Activities: Plan, manage, document, and execute ESR activities, including milestone reviews, readiness assessments, and risk...
SAIC
Apr 01, 2026
Sr Principal Systems Engineer (IO)
SAIC CA
Description SAIC is looking for a cleared Systems Engineering candidate to provide technical assistance and recommendations regarding the planning, implementation, and management of Battlespace Awareness and Information Operations (IO) systems. Support includes providing high quality engineering advisory services as they relate to evaluating future capability requirements, training and planning support, assisting in the development of doctrine, tactics, techniques, and procedures, advocating requirements in support of future effects-based warfare, assessment of Research & Development (R&D) and Science and Technology (S&T) efforts, and managing functional data for Information Operations for our U.S. Navy Information Operations customer located at the Naval Information Warfare Systems Command site in Old Town San Diego. The selected individual will: The contractor shall provide systems engineering and technical support for ongoing Information Operations and advanced...
SAIC
Apr 15, 2026
Principal Telemetry Systems Enginer
SAIC FL
Description SAIC seeks an experienced and energetic Principal Telemetry Systems Engineer to directly support the modernization of the space launch ranges, meeting mission requirements, providing range capabilities, and supporting the Assured Access to Space (AATS) mission. The overarching purpose of the program is to perform system modernization and digital transformation projects that will enable the acceleration of the space launch cadence to enable the Spaceport of the future. These positions are located in Cape Canaveral, Florida and Santa Maria, CA. Job Responsibilities: • Providing system-level engineering support and expertise to a cross-functional team. • Providing preliminary solutions to engineering problems of moderate scope and complexity in an expeditious, efficient, and timely manner. • Identify and apply current and emerging Digital Engineering practices, methods, and tools to address our sponsor and partners' most pressing challenges. • Apply knowledge and...
SAIC
Apr 08, 2026
Principal System Integration Engineer
SAIC FL
Description SAIC seeks an experienced and energetic Principal Integration Engineer to directly support the modernization of the space launch ranges, meeting mission requirements, providing range capabilities, and supporting the Assured Access to Space (AATS) mission. The overarching purpose of the program is to perform system modernization and digital transformation projects that will enable the acceleration of the space launch cadence to enable the Spaceport of the future. This position is located in Santa Maria, CA. Job Responsibilities: • Defines discrete systems with processes to link together complex systems and components with software applications to perform as a coordinated whole. • Uses a broad range of skills and a breadth of knowledge in several engineering/technology disciplines including systems and enterprise architecture, software and hardware engineering, interface protocols, and general problem-solving skills. • Assist in the development of transition...
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 15, 2026
Software Systems Engineer Principal
SAIC VA
Description Join the Data Feed Integration (DFI) team on the Advanced Battle Management System (ABMS) Cloud-Based Command and Control (CBC2) Program. In this role, you will support SAIC's efforts as the Lead Systems Integrator (LSI) by driving critical data feed integration initiatives. The DFI team plays a pivotal role in ensuring the seamless integration of external data feeds, API-based systems, and internal architectures, enabling mission success. This position is central to modernizing advanced Command and Control (C2) capabilities for DoW systems and advancing operational readiness. This position operates in a hybrid work environment with responsibilities divided between 25% travel (including installations and integration events in secure spaces), 25% in-office presence for team collaboration and operational needs, and 50% remote work for independent and team-oriented tasks. This is a unique position that blends technical, strategic, and collaborative responsibilities. You...
SAIC
Apr 08, 2026
Systems Engineer Sr Principal
SAIC CO
Description SAIC is looking for a Systems Administrator/Network Engineer/Spacecraft Command/Control Scheduler . Duties will include coordinating and managing end to end architecture by scheduling assets, configuring, maintaining, and troubleshooting networking equipment, servers and processing systems. End-to-end events will support testing, development, training, exercises, and real-world operations. This position is a direct interface with all users and sister agencies tabulating requirements, spotting trends, and developing usage metrics as needed by customers for mission execution. Plan and execute space and ground segment schedules coordinating with other intelligence organizations Monitor signal processor product generation ensuring flow of time critical data Monitor and update all components of computer network software including software licenses, software version updates and anti-virus software as required Configure and maintain firewalls, switches and...
SAIC
Apr 01, 2026
Systems Engineer Principal
SAIC CA
Description JOB DESCRIPTION: SAIC is seeking a motivated and experienced Test and Evaluation Engineer to join our team in El Segundo, CA. SAIC is sub-contractor on the Military Satellite Communications (MILSATCOM) Systems Engineering, Integration and Test (MSEIT) contract. You will join a Systems Engineering team defining the next generation of space communication systems supporting Air Force Military Satellite Communications. You will support Systems Engineering & Integration activities in a multidisciplinary and collaborative environment. The Systems Engineer will interface and collaborate with SE&I team members, contractors, government civilians and members of the USAF. The Systems Engineer will lead and support several working groups responsible for leading technical discussion, resolve and identify risk, requirement gaps, developing briefings, writing, and tracking action items, and authoring meeting minutes. The MILSATCOM Systems Engineering, Integration, and...
SAIC
Mar 25, 2026
Systems Engineer Principal
SAIC CO
Description JOB DESCRIPTION: SAIC is looking for a Spacecraft Command and Control Scheduler and Network Engineer / Systems Administrator . Duties will include coordinating and managing end to end architecture by scheduling assets, configuring, maintaining, and troubleshooting networking equipment, servers and processing systems. End-to-end events will support testing, development, training, exercises, and real-world operations. This position is a direct interface with all users and sister agencies tabulating requirements, spotting trends, and developing usage metrics as needed by customers for mission execution. Plan and execute space and ground segment schedules coordinating with other intelligence organizations Monitor signal processor product generation ensuring flow of time critical data Monitor and update all components of computer network software including software licenses, software version updates and anti-virus software as required Configure and maintain...
SAIC
Mar 25, 2026
Systems Engineer Principal
SAIC CA
Description SAIC is seeking a cleared MBSE Systems Engineer who is a current Model-Based Engineering practitioner to support a portfolio of Battlespace Awareness and Information Operations (BAIO) capabilities to our DoD customer. In this role, you will join our highly energized team of solution architects as we deploy innovative solutions for Information Operations; Intelligence, Surveillance and Reconnaissance; and Meteorology and Oceanography capabilities. The Systems Engineering and Integration (SE&I) Solutions need SE and MBSE methods and creative thinking for a successful program. Job Highlights • Exercise both thought leadership and practical engineering application by leveraging your Systems Engineering and Model-Based Engineering experiences to transform programs from a document-centric approach to a model-based approach to more effectively support our customers and ensure their mission success. • Apply knowledge of systems engineering processes, methods, tools,...
SAIC
Mar 11, 2026
Principal Test Systems Engineer
SAIC VA
Description We are seeking a Test Systems Engineer to develop and lead a test campaign for system level testing to validate mission readiness and performance. This position will also serve as the lead system integrator's senior system engineer and support system engineering efforts outside of test responsibilities. The position requires a diverse background in network engineering, software systems engineering and system level test management to support the United States Air Force in its goal of developing an interoperable system of systems to execute long range kill chains. The Department of the Air Force Integrated Fires Command and Control (DIFC2) program goals include improved information sharing, layered security, common data and architecture standards, system resiliency, faster implementation, and more effective cross-domain capabilities. The position requires an individual with strong technical project management skills and experience in developing and implementing test...
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...
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