Principal Systems Engineer (Microsoft) - DOJ NSD - Active Top Secret Required ITC Federal, Inc.Principal Systems Engineer (Microsoft) - DOJ NSD - Active Top Secret RequiredWashington, DCFull timeHas expertise in multiple operating systems and is responsible for configuration, patch management, troubleshooting, all versions and sub-version upgrades, and all aspects of the availability of servers and systems. This position provides enterprise Microsoft systems engineering and management support, ensuring the configuration, security, performance, and availability of servers and enterprise systems across the environment.
Principal Systems Test Engineer ElectraPrincipal Systems Test EngineerManassas, VAOur Ultra Short technology unlocks thousands of new operating locations and enables what we call Direct Aviation: quiet, point-to-point regional travel that gets people from where they are to where they want to go, without the congestion of major airports or the noise of conventional aviation. This is a hands-on leadership role - you'll mentor junior engineers, own the architecture of our simulation labs, and build the data management and automated test processes that engineering depends on to move the EL9 toward certification.
NewPrincipal Battery Systems Engineer ElectraPrincipal Battery Systems EngineerManassas, VAOur Ultra Short technology unlocks thousands of new operating locations and enables what we call Direct Aviation: quiet, point-to-point regional travel that gets people from where they are to where they want to go, without the congestion of major airports or the noise of conventional aviation. Bachelor's degree in Electrical Engineering, Mechanical Engineering, Aerospace Engineering, or a related discipline with at least 5 years of relevant experience (or equivalent combination of education and experience).
Principal Engineer Systems Northrop GrummanPrincipal Engineer SystemsBaltimore, MD$108,800–$163,200 / yearThis IPT Lead will be required to lead an engineering team working to transition designs to production for a very important sector priority program with many time-critical elements and high management visibility. The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.
Principal Systems Engineer Associates SystemsPrincipal Systems EngineerSterling, Virginiao Experience applying Model-Based Systems Engineering (MBSE) principles, including system modeling with Cameo, or equivalent tools. Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8+ years of prior engineering experience.
Senior Principal Systems Engineer General Dynamics Mission Systems, IncSenior Principal Systems EngineerAnnapolis Junction, Maryland$183,381–$193,409 / yearCompany Overview: General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. As a Senior-Level Systems Engineer for CISR, you’ll be a lead member of cross-functional hardware and system design teams responsible for the realization of complex computing and communications systems.
Systems Engineer, Principal PeratonSystems Engineer, PrincipalReston, Virginia$176,000–$282,000 / yearFull timeResponsibilities: Peraton is seeking a Systems Engineer, Principal to join our national intelligence program in Northern Virginia as the primary technical authority responsible for the strategic design, implementation, and 24/7 operational excellence of the IT Enterprise Infrastructure client’s technology stack. • Oversee cloud migrations, data center modernization, global networking, and cybersecurity integration with the mission is to transform "legacy" into "leading-edge" while maintaining the 99.99% uptime our global operations demand.
AP110 Principal Software Systems Engineer / Full-Stack Architect SupportAP110 Principal Software Systems Engineer / Full-Stack ArchitectGreenbelt, MarylandRemoteAP110 Principal Software Systems Engineer / Full-Stack Architect Program: NASA GSFC Astrophysics Science Division: Guest Observer Facility (GOF) Modernization Project Location: Remote Position, US-based only (occasional travel to NASA Goddard Space Flight Center, Greenbelt, MD will be required for badging and review milestones) Employment Type: Full-time contractor position Level: Senior / Principal (~10+ years of relevant experience) Eligibility: Must be a US Citizen or Lawful Permanent Resident (LPR); having resided in the US for the past 3 consecutive years and able to meet the access requirements for a system handling Controlled Unclassified Information (CUI) and Personally Identifiable Information (PII). Defining Success: By the end of 2026, you deliver a credible, demonstrable prototype that unifies key parts of the proposal–review–grant workflow for an initial set of missions, earns buy-in from participating mission stakeholders, and establishes the architecture, security posture, and team practices needed to iterate quickly toward a production system.
Principal Automation Systems Engineer, NA Vantage Data CentersPrincipal Automation Systems Engineer, NASterling, VAThis role is expected to solve high-complexity automation challenges, provide direction for critical design decisions, mentor engineers and integration partners, and strengthen the quality, reliability, maintainability, and scalability of automation solutions used across both new builds and production environments. Developing and operating across North America, EMEA and Asia Pacific, Vantage has evolved data center design in innovative ways to deliver dramatic gains in reliability, efficiency and sustainability in flexible environments that can scale as quickly as the market demands.
Principal Systems Engineer/Sme Leidos Holdings Inc.Principal Systems Engineer/SmeFort Meade, MD$154,050–$278,475 / yearThe Principal Systems Engineer serves as a senior technical authority leading the design, integration, testing, deployment, training, and sustainment of packet-based hardware and software systems utilizing Commercial Off-The-Shelf (COTS) and Government Off-The-Shelf (GOTS) products. The program supports a complex and evolving mission where experienced cleared professionals work side-by-side with the customer to architect, integrate, modernize, and optimize systems that directly drive operational outcomes.
Principal Endpoint Security Systems Engineer LeidosPrincipal Endpoint Security Systems EngineerBethesda, Maryland$131,300–$237,350 / yearWorking in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats. January 21, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Principal Information Systems Security Engineer LeidosPrincipal Information Systems Security EngineerLinthicum, MarylandAs a Principal Information Security Systems Engineer (ISSE) you will join a small team of security engineers providing Information Assurance (IA) Architecture Analysis and Security Engineering Support for the implementation and fielding of the National Leadership Command Capability in support of Nuclear Command, Control, and Communications (NC3), Continuity of Government (COG), and Senior Leader communications. Bachelor of Science degree from an accredited university ideally in Computer Science, Information Assurance, Information Security System Engineering or related field with a minimum of 20 years of experience as an Information Systems Security Engineer (ISSE) or System Engineer on programs and/or contracts with the customer space.
Principal Cyber Systems Engineer Systems Planning and AnalysisPrincipal Cyber Systems EngineerWashington, D.C., Washington, DCFull timeComprising more than 130 personnel, the Integrated Warfare Systems Group (IWSG) delivers expertise across program and project management, acquisition and contracting, systems and digital engineering, software development, test and evaluation, sustainment and life‑cycle management, cybersecurity, international/Foreign Military Sales, strategic communications, and IT services. These capabilities support more than 100 Above Water Sensor, Undersea, and Combat System programs and projects within the Navy’s Portfolio Acquisition Executive for Mission Systems, Maritime and Munitions, as well as clients at Naval Surface Warfare Center, Dahlgren Division, Naval Surface Warfare Center, Crane Division, and the Office of Naval Research.#FC #DICE #DD #MC #CT.
Principal Model-Based Systems Engineer STRPrincipal Model-Based Systems EngineerArlington, VA$206,000–$284,000 / yearThe ideal candidate will be well-versed in Systems Engineering techniques, Modeling and Simulation, Digital Engineering/MBSE and be excited about opportunities to mentor more junior staff and help foster growth of subject matter expertise across the organization. In addition to modeling in SysML, the Systems Engineer will be responsible for implementing and guiding teams in the customization and automation techniques offered by Cameo to enable multi-disciplinary programs to comply with DoD Digital Engineering goals.
(USA) Principal, Systems and Infrastructure Engineer Walmart(USA) Principal, Systems and Infrastructure EngineerHerndon, VirginiaOption 1: Bachelor's degree in computer science, computer engineering, information systems, information technology, or related area and 5 years’experience in technology infrastructure engineering across areas such as compute, storage, network, mobility or virtualization-related technologies. About the team: The Enterprise Directory Services Core team manages Walmart’s multiple Active Directory forests, ensuring essential services like LDAP function securely and efficiently.
Principal Elasticsearch Systems Engineer LeidosPrincipal Elasticsearch Systems EngineerBethesda, MarylandOur talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. January 20, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Engineer Network Systems, Principal ShentelEngineer Network Systems, PrincipalReston, VABuild and manage the security infrastructure of the corporate network to include installing hardware, configuring firewalls and Internet content filters, setting up virtual private networks (VPNs), and performing upgrades. Ideal candidates will have a deep understanding of Cisco technologies, TCP/IP, routing protocols (BGP, OSPF, EIGRP), and switching (VLANs, STP), as well as previous experience with Cisco IOS and network management tools.
Principal Spacecraft Systems Engineer - Blue Ring (TS/SCI Required) Blue OriginPrincipal Spacecraft Systems Engineer - Blue Ring (TS/SCI Required)Washingtonand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.
Senior Principal Systems Engineer – C3MS (Onsite) RTXSenior Principal Systems Engineer – C3MS (Onsite)Washington, WashingtonYou will provide full-spectrum engineering support across secure voice systems, including planning, design, implementation, testing, documentation, and lifecycle management for both circuit switched (TDM) and IPbased platforms. You will work directly with WHCA project managers and technical teams to acquire and deploy new capabilities, evaluate system performance, and support WHCA’s transition from legacy infrastructure to advanced secure IP voice solutions.
Principal Engineer - Retail Systems Lululemon Athletica IncPrincipal Engineer - Retail SystemsWashington, WA$205,000–$257,000 / yearIdentify and mitigate systemic technical risks, reliability gaps, integration complexity, platform constraints, AI governance needs, and technical debt that could impact store operations, guest experience, or enterprise scale.qualificationsBachelor's degree in Computer Science, Information Systems, Information Technology, or equivalent experience; Master's degree preferred.11+ years of progressive software engineering experience, with demonstrated expertise in large-scale system design, technical architecture, and cross-functional leadership across multiple technology domains. You will influence across multiple teams without relying on formal authority, building consensus around technical direction, surfacing trade-offs, and acting as a thought partner to technology leadership on how AI, engineering practices, and platform strategy can drive meaningful retail business outcomes.select responsibilities include:Define the technical vision, system design, and implementation approach for major retail systems initiatives that support global store, guest, educator, and omni-channel experiences.