NewPrincipal Automation Engineer Cadence IncPrincipal Automation EngineerStaunton, VAAs a recognized subject matter expert, the Principal Automation Engineer will play a critical role in evaluating customer requirements, developing manufacturing concepts, supporting technical quotations, leading complex automation projects, and advancing Cadence's automation capabilities. You'll work alongside talented engineers, manufacturing leaders, and customers to solve complex challenges while helping build the next generation of medical device manufacturing capabilities.
NewPrincipal GNC Engineer Cummings Aerospace IncPrincipal GNC EngineerArlington, VAThe solution includes GNC architecture and algorithm development, modeling and simulation, analysis and verification tests, as well as provide oversight of GNC engineering activities. Apply knowledge of classical and modern methods, theories, and research techniques in the design, analysis, modeling, and simulation of GNC systems.
NewPrincipal Collection Software Engineer Illuminate TechnologiesPrincipal Collection Software EngineerFredericksburg, VA$200,000–$250,000 / yearAt 90 days, you are cleared into the worksite, integrated with the customer’s team and running the program management routine: deliverables register, integrated schedule, and risk and issue log, all current and visible to the Government customer. At 12 months, engineering changes ship in compliance with the data security, integrity, and retention obligations without rework, CDRLs and program artifacts are delivered on time, and the CO and COR treat you as the primary point of contact for the task order.
NewPrincipal Software Engineer APOGEE RESEARCH LLCPrincipal Software EngineerArlington, VAThis work spans many fronts from implementing novel algorithms across ISR, EW, Networking, Cyber, and more; integrating disparate systems that lack a common interface; reverse engineering subsystems; developing custom tool chains that accelerate the speed of development; or developing new approaches to infrastructure that handle heterogeneous deployment needs. The details of the position will vary based on the expertise and desires of the candidate and the specific project being executed, however, common themes include: Performing hands-on technical work including design and development of algorithmically complex software, performance profiling, optimization, and general troubleshooting for a variety of software languages spanning from C++ to project-specific Domain Specific Languages (DSLs).
NewData Scientist / AI Engineer Phoenix Group of Virginia, Inc.Data Scientist / AI EngineerNorfolk, VAPrimary Functions: The primary focus of this position is the design, development, deployment, and continuous improvement of production-grade Retrieval-Augmented Generation (RAG) systems, agentic AI workflows, and LLM-powered analytics tailored to carrier hotwashes (after-action reviews), project performance data, technical documentation, and operational decision support. The incumbent will leverage and extend platforms including ADVANA, Databricks, AWS SageMaker, LangChain/LangGraph, and cURL to turn complex, unstructured, and structured naval maintenance data into actionable insights, automated summaries, predictive signals, and natural-language query capabilities.
Principal Systems Engineer Ultra Electronics Ocean SystemsPrincipal Systems EngineerChantilly, VirginiaAt Ultra Maritime, the Principal Systems Engineer will have the opportunity to guide the development and selection of key technologies for the Navy and will have the opportunity to work with complex software algorithms and cutting-edge digital signal processing hardware. Develops plans and leads systems Engineering teams to ensure optimum use of time and resources and provides technical leadership, ensuring that team performance is aligned and contributes to the overall goals of the business unit.
NewPrincipal Systems Engineer, Digital Engineering Solutions Modern Government SolutionsPrincipal Systems Engineer, Digital Engineering SolutionsSterling, VAFull timeTITLE: Principal Systems Engineer, Digital Engineering SolutionsLOCATION: Sterling, VA (Relocation assistance considered)CLEARANCE REQUIRED: Active TS/SCI with CI PolyEMPLOYMENT TYPE: Part-Time / As Needed, Onsite POSITION SUMMARYModern Government Solutions (MGS) is seeking a Principal Systems Engineer, Digital Engineering Solutions to lead the architecture, deployment, and sustainment of enterprise engineering platform environments in support of national security missions. Bachelor's degree in Systems Engineering, Computer Science, Computer Engineering, Software Engineering, Information Technology, Electrical Engineering, Mathematics, Physics, or a related field.16+ years of experience architecting, deploying, and sustaining enterprise engineering platforms and IT infrastructure within cloud-hosted environments.
NewPrincipal Systems Engineer (API Gateway) - TS/SCI w CI Poly Modern Government SolutionsPrincipal Systems Engineer (API Gateway) - TS/SCI w CI PolySterling, VAFull timeBachelor's degree in Systems Engineering, Computer Science, Computer Engineering, Software Engineering, Information Technology, Electrical Engineering, Mathematics, Physics, or a related field.16+ years of experience designing, integrating, and supporting enterprise systems, cloud architectures, and API-driven solutions within complex mission environments.5+ years of experience implementing and administering API gateway technologies in cloud-based architectures; Experience designing secure APIs and enterprise integration solutions utilizing REST, GraphQL, event-driven architectures, message queues, streaming platforms, or ETL pipelines. TITLE: Principal Systems Engineer (API Gateway)LOCATION: Sterling, VA (Relocation assistance considered)CLEARANCE REQUIRED: Active TS/SCI with CI PolyEMPLOYMENT TYPE: Full-time, Onsite POSITION SUMMARYModern Government Solutions (MGS) is seeking a Principal Systems Engineer to architect, integrate, and secure mission-critical API ecosystems supporting next-generation national security capabilities.
Principal Systems Engineer - Defense Curtiss-WrightPrincipal Systems Engineer - DefenseAshburn, VirginiaAs a leading Modular Open Systems Approach (MOSA) solutions supplier for battlefield platforms and communication systems , we are uniquely positioned to benefit from the DoD's commitment to maintaining technological superiority on the battlefield. Curtiss-Wright's Defense Solution division is a trusted, proven leader, delivering superior products and services that meet the defense and aerospace industries' toughest challenges with best-in-class value.
Principal Systems Engineer-Defense Curtiss-WrightPrincipal Systems Engineer-DefenseAshburn, VirginiaAs a leading Modular Open Systems Approach (MOSA) solutions supplier for battlefield platforms and communication systems , we are uniquely positioned to benefit from the DoD's commitment to maintaining technological superiority on the battlefield. Curtiss-Wright's Defense Solution division is a trusted, proven leader, delivering superior products and services that meet the defense and aerospace industries' toughest challenges with best-in-class value.
Principal Systems Engineer LancesoftPrincipal Systems EngineerSterling, VAWhat will you do Perform project management/project leadership tasks collaborating with a multitude of customer and other contractor teams Provide Mission Protection knowledge, skills, and abilities (KSA) to assigned projects, the enterprise, and to other entities as directed by the customer. Client is looking for Principal Systems and Integration Engineer (SEandl), providing enterprise-wide systems engineering and integration support to an operational government customer within the Intelligence Community.
Principal Systems Engineer TalentRemedyPrincipal Systems EngineerHerndon, VirginiaOperate across every technical pillar within Space Systems — payload, bus, ground, RF, timing, software, and verification - serving as the primary systems-integration authority during this phase of program growth and taking the highest-leverage technical integration workload off the Director of Space Systems. Drive execution through the broader engineering team - directing the PNT budget owner, timing scientist, RF link-budget owners, Integration and Test Engineer, and Timing Verification Engineer to produce the verification evidence you integrate into system-level closure.
NewPrincipal Systems Engineer - TS/SCI is required ParsonsPrincipal Systems Engineer - TS/SCI is requiredCentreville, Virginia$134,100–$241,400 / yearApplies extensive experience to oversee team effort and provide analyses and assessments of system requirements, processes, and methodologies enabling total system integration and performance while meeting cost, schedule, and technical objectives. Bachelor's Degree in Engineering or an equivalent technical/scientific discipline specifically related to area of specialty and a minimum of 10+ years of related professional experience.
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.
Principal Systems Engineer TrustPointPrincipal Systems EngineerDulles, VA$175,000–$228,000 / yearOperate across every technical pillar within Space Systems — payload, bus, ground, RF, timing, software, and verification - serving as the primary systems-integration authority during this phase of program growth and taking the highest-leverage technical integration workload off the Director of Space Systems. Drive execution through the broader engineering team - directing the PNT budget owner, timing scientist, RF link-budget owners, Integration and Test Engineer, and Timing Verification Engineer to produce the verification evidence you integrate into system-level closure.
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.
(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.
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.
NewSenior Principal Mission Protection Systems Engineer (Onsite) RTXSenior Principal Mission Protection Systems Engineer (Onsite)VirginiaActive and existing security clearance required on day 1 At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. Typically requires a Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 10 years of prior engineering experience or equivalent experience.
Sr Principal Engineer - MES Systems Eli Lilly and CompanySr Principal Engineer - MES SystemsRichmond, VA$126,000–$184,800 / yearOur current groups include: Africa, Middle East, Central Asia Network, Black Employees at Lilly, Chinese Culture Network, Japanese International Leadership Network (JILN), Lilly India Network, Organization of Latinx at Lilly (OLA), PRIDE (LGBTQ+ Allies), Veterans Leadership Network (VLN), Women's Initiative for Leading at Lilly (WILL), enAble (for people with disabilities). Our 35,000 employees around the world work to discover and bring life-changing medicines to those who need them, improve the understanding and management of disease, and give back to our communities through philanthropy and volunteerism.