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22 senior principal systems engineer jobs found

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SAIC
Oct 21, 2026
Senior Principal Systems Engineer
SAIC CA
Description SAIC is seeking a Senior Principal Systems Engineer to support the Tactical Networks (TACNET) Capabilities Based in Service Engineering Agent (CB-ISEA). This is a Hybrid/Remote role in San Diego, CA. MUST BE LOCAL TO AREA DUE TO PERIODIC ONSITE VISITS . TACNET CB-ISEA supports the sustainment and modernization of tactical networks to include Automated Digital Network System (ADNS), Consolidated Afloat Network and Enterprise Services (CANES), Combined Enterprise Regional Information Exchange System (CENTRIXS), Integration Shipboard Networking System (ISNS), Sensitive Compartmented Information (SCI) Networks, Flank speed Wireless. TACNET Sustainment Team seeking a Systems Architect who will lead various efforts and initiatives involving our tactical networks. Person will design, develop, and sustain DOD system networks. Person will work closely with development and sustainment engineering team to purpose and engineer solutions to improve, modernize, and sustain...
SAIC
Sep 09, 2026
Senior Principal Systems Engineer
SAIC CO
Description We are seeking a highly skilled Senior Principal Systems Engineer to support the HOPE 2.0 initiative in Colorado Springs, CO. In this role, you will be instrumental in developing system architectures, creating use cases, managing and analyzing requirements, and supporting multiple fast-paced projects across the Space, Intelligence, and Cyber mission areas. You will work onsite with diverse, cross-functional teams in a collaborative Agile environment, focusing on rapid development cycles and streamlined design reviews, ensuring the swift delivery of mission-critical solutions to operational environments. The candidate must also excel at communicating complex technical concepts to non-technical stakeholders and creating high-quality artifacts to effectively convey technical and programmatic objectives. Responsibilities: Working with the HOPE 2.0 Solution Architect, support the development of system architectures, performing trade studies and decisions that...
SAIC
Aug 26, 2026
Senior Principal Systems Engineer
SAIC VA
Description SAIC is seeking a Senior Principal Systems Enginee r to fill a critical position supporting a large SETA program supporting the NRO's Ground Enterprise Directorate (GED) in Chantilly, VA. The job requires the ability to flexibly manage task execution, provide technical/professional expertise on a variety of Systems Engineering topics, and advise the government on program activities. All candidates must have an active TS/SCI clearance with CI Polygraph. A successful candidate in this position will bring a record of application of systems engineering and creative thought-leadership to mature and develop revolutionary multi-intelligence solutions. Responsibilities include but are not limited to: Provide technical leadership in planning capabilities needed to better support mission operations (e.g. automation, resiliency, situational awareness, etc.) Analyze user needs, develop concepts of operation, and high-level systems architectures, and define capability...
SAIC
Oct 21, 2026
Systems Engineer Principal
SAIC MD
Description SAIC is seeking a Lead Systems Engineer Principal to support PMA251 Aircraft Launch and Recovery Equipment (ALRE) Systems Program Office, to lead the technical direction for high-visibility Naval aviation and shipboard systems that directly impact Fleet readiness and safety. As the Senior Principal Lead Systems Engineer for Foreign Miliary Sales (FMS), you will set architecture, drive requirements and integration, mentor engineers, and represent the program at senior reviews-partnering with NAVAIR/NAVSEA and International stakeholders across complex systems such as AAG, EMALS, ALRE, shipboard power/motion control, and related electromechanical/control domains. What You'll Lead & Deliver Own the system architecture & technical baseline for multi-disciplinary hardware/software systems; guide decisions on interfaces, behaviors, allocations, performance, safety, and sustainment across the lifecycle. Drive requirements management & traceability: lead...
SAIC
Oct 14, 2026
Senior Principal Cyber Engineer
SAIC CA
Description SAIC is seeking a Senior Principal Cybersecurity Engineer to support critical Navy communication systems within the DoD. This role is ideal for a hands-on security professional with deep engineering expertise, offensive security experience, and a proven track record finding vulnerabilities, and securing classified and high-security environments. You will serve as a key technical expert collaborating with engineers, program managers, and government personnel to deliver secure, resilient strategic systems. This role is fully ON-SITE in San Diego, CA. Must be local to area. Up to 10% travel involved. JOB DUTIES: Plan and execute penetration test exercises against systems, networks, and applications simulating real world environment. Perform network traffic analysis and threat detection using Wireshark and other offensive/defensive security tools. Architect and harden IT systems, virtualized environments, and network security devices in classified...
LMI
Oct 02, 2026
Full time
Chief Engineer
LMI Washington, DC
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, homeland, healthcare, and intelligence 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 an accomplished Chief Engineer to serve as the program's senior technical authority for...
SAIC
Sep 30, 2026
Senior Principal Cyber Engineer
SAIC CA
Description SAIC is seeking a Senior Principal Cybersecurity Engineer to support critical Navy communication systems within the DoD. This role is ideal for a hands-on security professional with deep engineering expertise, offensive security experience, and a proven track record finding vulnerabilities, and securing classified and high-security environments. You will serve as a key technical expert collaborating with engineers, program managers, and government personnel to deliver secure, resilient strategic systems. This role is fully ON-SITE in San Diego, CA. Must be local to area. Up to 10% travel involved. JOB DUTIES: Plan and execute penetration test exercises against systems, networks, and applications simulating real world environment. Perform network traffic analysis and threat detection using Wireshark and other offensive/defensive security tools. Architect and harden IT systems, virtualized environments, and network security devices in classified...
Lockheed Martin
Aug 18, 2026
Engineering Project Management Prin
Lockheed Martin GA
Standard Job Description We are Lockheed Martin  We are seeking a highly experienced Principal Project Engineer to lead and manage C130 new development and modernization efforts.  You will function as part of the AMMM Project Engineering team responsible for delivering complex system development products and solutions. What You Will Be Doing As a Principal Project Engineer Manager your responsibilities will include: • Be the technical leader solving new development opportunities or modernized solutions of an integrated and complex system/technical development from concept, through design, implementation, test, manufacturing/deployment and sustainment. • Ensure alignment with Engineering and Technology strategy, business development, program architect, technical feasibility. • Drive planning, technical performance measures, trade studies, risk evaluations, across all Engineering Teams to meet contract cost, schedule, and technical requirements. Lead and manage engineering...
SAIC
Jul 15, 2026
Sr. Principal Digital Engineer- MBSE
SAIC CA
Description SAIC's Solutions & Technology Group (STG) is seeking an experienced MBSE Sr. Principal Digital Engineer to join our team of experts. This position will lead the development, execution, and maturation of cutting-edge Digital Engineering solutions in support of Defense, Federal Civilian, and/or National Security customers and their systems. This role focuses on advancing model-based systems engineering (MBSE), digital engineering (DE), and system-of-systems (SoS) capabilities to address evolving engineering challenges and deliver mission success. This position requires onsite work in San Diego, CA. Flexibility to travel up to 10% of the time is required for this role. You will work alongside a team of experts and stakeholders in a dynamic, mission-driven environment to advance cutting-edge capabilities in support of national security objectives. As a thought leader and systems engineering expert, you will support the integration of MBSE methodologies...
Lockheed Martin
Jul 07, 2026
Engineering Project Manager Principal - Level 6
Lockheed Martin Marietta, GA
Description: We are Lockheed Martin We are seeking a highly experienced Principal Project Engineer to lead and manage C130 new development and modernization efforts. You will function as part of the AMMM Project Engineering team responsible for delivering complex system development products and solutions. What You Will Be Doing As a Principal Project Engineer Manager your responsibilities will include: • Be the technical leader solving new development opportunities or modernized solutions of an integrated and complex system/technical development from concept, through design, implementation, test, manufacturing/deployment and sustainment. • Ensure alignment with Engineering and Technology strategy, business development, program architect, technical feasibility. • Drive planning, technical performance measures, trade studies, risk evaluations, across all Engineering Teams to meet contract cost, schedule, and technical requirements. Lead and manage engineering teams to...
General Dynamics Mission Systems, Inc
May 18, 2026
Senior Principal ASIC FPGA Engineer
General Dynamics Mission Systems, Inc Boise, ID
Basic Qualifications Education Requirements: Bachelor's degree in Electrical or Computer Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 10 years of relevant experience; or Master's degree plus a minimum of 8 years 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 Duties and Tasks: Responsible for definition, design, verification and documentation for ASIC (Application Specific Integrated Circuit) and/or FPGA (Field Programmable Gate Array) developments Determines architecture, system simulation and detailed design...
LMI
Oct 15, 2026
Principal Solutions Architect, Supply Chain & Logistics
LMI Washington, DC
Overview LMI is seeking an experienced Principal Solutions Architect, Supply Chain & Logistics to shape, integrate, and advance technology-enabled solutions supporting federal supply chain, logistics, industrial base, and sustainment missions. This individual will serve as a senior technical leader across LMI's existing programs and growth pipeline, translating complex mission challenges into innovative, integrated solutions that leverage LMI's proprietary technologies, data assets, analytical capabilities, and domain expertise. Working closely with market leadership, business development, product teams, and program delivery organizations, the Principal Solutions Architect will help establish technical direction, strengthen solution differentiation, and accelerate the adoption of scalable, reusable capabilities across customer engagements.   The ideal candidate combines deep familiarity with federal logistics and supply chain missions, strong technical...
Lockheed Martin
Sep 14, 2026
Systems Engineer Stf
Lockheed Martin CO
Help Desk/Systems Engineer WHO WE ARE Lockheed Martin is a global security and aerospace company that employs approximately 120,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration, and sustainment of advanced technology systems, products, and services.  Lockheed Martin (LM) Rotary and Mission Systems (RMS) is looking for engineering professionals to work on the Trusted Security Solutions (TSS) program to engineer Cross-Domain Solution (CDS) products - creating innovative solutions to deliver resilient systems, products, and services to protect our customers' platforms against evolving cyber threats. WHAT WE’RE DOING This position is for a Systems Engineer/Help Desk Engineer on the Radiant Mercury (RM) product within the TSS program. RM is the US Navy's premier CDS product and LM has been the prime contractor for over 20 years.  RM delivers secure CDS to our customers, enabling the controlled transfer of information...
Lockheed Martin
Aug 11, 2026
GNC Engineer, Staff - Dallas, TX
Lockheed Martin Grand Prairie, TX
Description: Who We Are Lockheed Martin is a global security and aerospace company that employs approximately 114,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration, and sustainment of advanced technology systems, products, and services. Lockheed Martin Missiles and Fire Control (MFC) is one of four Lockheed Martin business areas. By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. At Lockheed Martin, we place an emphasis on...
SAIC
Jul 27, 2026
Senior SVAT System Administrator
SAIC CO
Description SAIC is seeking a Senior Service Validation and Testing (SVAT) Administrator in Colorado Springs, CO. The Senior Service Validation and Testing (SVAT) Administrator acts as the gatekeeper for IT quality assurance, ensuring that all proposed changes, updates, and new systems meet stringent operational and security standards before entering the production environment. Rooted in ITIL service management principles, this role manages the Test and Integration Laboratory (TIL) and leads the evaluation of system hardening, performance metrics, and configuration compatibility. The incumbent bridges the gap between engineering and operations, guaranteeing that new deployments do not introduce vulnerabilities or instability into the enterprise IT infrastructure. Principal Duties and Responsibilities Service Validation & Testing Lifecycle. Designs, executes, and oversees comprehensive test plans for software patches, system upgrades, and new technology...
Lockheed Martin
Jul 08, 2026
Principal Sensor Systems Architect - Radar
Lockheed Martin Moorestown, NJ
Description: What We’re Doing Here at Lockheed Martin Rotary and Mission Systems (RMS) we take on the most demanding challenges in the world. We seek out innovative ideas and creative solutions to seemingly impossible problems facing our customers in the Sensors, Effectors & Mission Systems (SEMS) organization. We collaborate with the best Radar engineers in the business across the Moorestown, NJ and Syracuse, NY sites to invent solutions where they don’t exist yet. If you’re looking for the challenge of a lifetime on a team of the brightest minds in the world, then Rotary Mission Systems and the Sensor Architectures team is the place for you. If you’re looking for life-long learning and a career where the hard work is the fun part, then you’re in the right place. Lockheed Martin. Your Mission is Ours. The Work In your role as a Principal Sensor Systems Architect, you will: • Provide guidance and leadership for program execution across sensor products. • Shape system...
Lockheed Martin
Jul 02, 2026
DevSecOps Engineer, Sr. - Embedded, Grand Prairie, TX
Lockheed Martin Grand Prairie, TX
Description: Lockheed Martin is a global security and aerospace company that employs approximately 114,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. Lockheed Martin Missiles and Fire Control (MFC) is one of four Lockheed Martin business areas. MFC is a recognized designer, developer and manufacturer of precision engagement aerospace and defense systems for the U.S. and allied militaries. MFC develops, manufactures and supports advanced products for military customers that include the U.S. Army, Navy, Air Force, Marine Corps, NASA and dozens of foreign allies. MFC also offers a wide range of products and services for the global civil nuclear power industry and the military’s green power initiatives. As a Senior Software Engineer at MFC, you will join one of the largest networks of software professionals, implementing cutting edge technologies...
Lockheed Martin
May 29, 2026
Embedded Software Engineer / Embedded / C++ / Orlando, FL
Lockheed Martin Orlando, FL
Description: This is a multi-hire position for a variety of highly embedded and sensor driven programs. These programs are notable programs such as JASSM, LRASM, EOTS and many more classified programs that are in need of engineers with experience writing drivers, working in hardware abstraction layer architectures and are familiar with microservice style architectures. We want you, if you enjoy writing command and control code for sensors and doing hardware software integration in classified labs. This position is responsible for all phases of the software development lifecycle including requirements analysis, design, code and unit test, and hardware/software integration and verification. The individual will develop embedded software in C++ and embedded operating system in an Agile environment using JIRA, Git and Confluence. The individual will need to apply appropriate standards, processes, procedures and tools throughout the development lifecycle. Lockheed Martin is a...
Lockheed Martin
May 29, 2026
Embedded Staff Software Engineer / Embedded / C++ / Orlando, FL
Lockheed Martin Orlando, FL
Description: This is a multi-hire position for a variety of highly embedded and sensor driven programs. These programs are notable programs such as JASSM, LRASM, EOTS and many more classified programs that are in need of engineers with experience writing drivers, working in hardware abstraction layer architectures and are familiar with microservice style architectures. We want you, if you enjoy writing command and control code for sensors and doing hardware software integration in classified labs. This position is responsible for all phases of the software development lifecycle including requirements analysis, design, code and unit test, and hardware/software integration and verification. The individual will develop embedded software in C++ and embedded operating system in an Agile environment using JIRA, Git and Confluence. The individual will need to apply appropriate standards, processes, procedures and tools throughout the development lifecycle. Lockheed Martin is a...
Lockheed Martin
May 29, 2026
Embedded Senior Staff Software Engineer / Embedded / C++ / Orlando, FL
Lockheed Martin Orlando, FL
Description: This is a multi-hire position for a variety of highly embedded and sensor driven programs. These programs are notable programs such as JASSM, LRASM, EOTS and many more classified programs that are in need of engineers with experience writing drivers, working in hardware abstraction layer architectures and are familiar with microservice style architectures. We want you, if you enjoy writing command and control code for sensors and doing hardware software integration in classified labs. This position is responsible for all phases of the software development lifecycle including requirements analysis, design, code and unit test, and hardware/software integration and verification. The individual will develop embedded software in C++ and embedded operating system in an Agile environment using JIRA, Git and Confluence. The individual will need to apply appropriate standards, processes, procedures and tools throughout the development lifecycle. Lockheed Martin is a...
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