Principal Engineer w/Top Secret Clearance TekSynapPrincipal Engineer w/Top Secret ClearanceWashington, Washington, DC$160,000–$200,000 / yearFull timeKnowledge of operating systems, including Windows, Linux, Mac, and mobile operating systems including iOS and Android, application behaviors, and network traffic analysis to identify malware exploits. Additional Job Information: TekSynap is a fast growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment.
Principal Engineer The High CompaniesPrincipal EngineerBaltimore, MDESSENTIAL JOB FUNCTIONS: Engineering leadership and management: Ensure that on projects assigned within the region or national account, technical staff: Adhere to StructureCare quality, schedule, and budget requirements, adjusting as necessary to meet targets. Manage assigned direct and/or indirect report relationships including: Conduct all required performance reviews with regular check-ins, documentation and positive coaching as required to ensure the development of engineers assigned.
Principal Architect Data Centers MG2 CorpPrincipal Architect Data CentersMcLean, VA$125,000–$200,000 / yearYou will be working in our Client Programs (CP) Market, where you will have the unique opportunity to work on global and national building programs with a focus on project and client leadership through all phases of design and delivery. Oversee staffing assignments and build project teams that can successfully execute project work, and deliver excellence in design, technical expertise, and project management.
Senior Principal FPGA & Digital Signals Processing Engineer Research InnovationsSenior Principal FPGA & Digital Signals Processing EngineerAlexandria, VAAs the Principal FPGA & DSP Engineer, you will serve as the technical leader responsible for designing and delivering the next generation of real-time FPGA-based signal processing capabilities that enable rapid spectrum awareness, signal exploitation, and electronic warfare operations. Working closely with hardware, software, AI, and RF engineering teams, you will architect high-performance firmware solutions that transform advanced algorithms into deployable capabilities supporting the Department of Defense, Intelligence Community, and allied mission partners.
Principal AI Engineer Seekr Technologies IncPrincipal AI EngineerReston, VAWe''re looking for a Staff or Principal AI Engineer to help build SeekrFlow Edge Builder, the platform that makes it simple to package, configure, deploy, and operate trustworthy AI solutions across edge, on-premises, cloud, disconnected, and air-gapped environments. Available across cloud, on-premises, and edge environments, SeekrFlow reduces bias, strengthens data integrity, and simplifies model oversight so organizations can rely on trusted AI decisions in high-stakes settings that impact society's most sensitive and vital systems.
Principal Cyber Software Engineer (iOS) Nightwing Intelligence SolutionsPrincipal Cyber Software Engineer (iOS)Sterling, Virginia$99,000–$206,000 / yearThe team comprises engineers of multiple disciplines including vulnerability research, reverse engineering, CNO/CNE development, hardware emulation, system engineering, and data analytics. Cyber Offense and Defense Experts (CODEX) is seeking a cyber engineer to join our team to solve real-time cyber challenges, working on site with our end users in their spaces.
Principal Program Manager Workday IncPrincipal Program ManagerReston, VA$170,600–$255,800 / yearBroader Risk Assessment and Analysis: Perform principal-level risk assessment activities beyond third parties - including security exception management, internal control reviews, and cyber risk assessments - applying qualitative and quantitative techniques to translate risk into business impact and inform risk-based decisions. Third-Party Risk Program Ownership: Own and evolve the Cybersecurity third-party security risk strategy, including risk assessment methodology, vendor tiering, control expectations, procedures, continuous monitoring, and reporting; mature the program to keep pace with emerging risk domains such as AI/ML vendors and evolving regulatory expectations.
NewPrincipal Product Controls Engineer On.EnergyPrincipal Product Controls EngineerReston, VALead platform selection for the controls portfolio (controller, I/O, HMI runtime, network, and comms stack), building the lifecycle, obsolescence, second-source, licensing, and unit-cost case with supply chain and the product teams so that each decision is one the group can stand behind. Working alongside product management, hardware, software, and field teams, this role brings those products together into one coherent control system, keeps each new generation compatible with the installed base, and leads the final technical review before a design is released.
Principal Consultant Public Sector Appian CorpPrincipal Consultant Public SectorMcLean, VA$100,000–$225,000 / yearKnowledge of software testing practices (test-driven development, automated test suites within a continuous integration framework); integrations experience using APIs such as REST and SOAP, JDBC connections, and web services; familiarity with Amazon Web Services (AWS), Artificial Intelligence (AI), Analytics, Machine Learning, Google Cloud, Application Integration, Database, Developer Tools, Management & Governance, and Elastic Containers is preferred. This includes working within an agile environment to understand our client's business processes and technical needs, launch new relational data models in production, developing APIs to integrate with multiple systems, partnering with Appian Architects and Technical Delivery Managers, and leading/mentoring consultants through fast-paced software implementations.
Sr Principal Technologist, FCC W. R. Grace & CoSr Principal Technologist, FCCColumbia, MDRemote$170,455.20–$234,375.90 / yearWe provide innovative products, technologies and services which our customers use to manufacture everyday products like renewable fuels, pharmaceuticals, toothpaste, cosmetics, food packaging, beer, edible oils and more. Serves as advisor to all Technical Service Engineers and customers and as a technology expert to Grace customers in select areas of FCC unit operations, catalyst application, startup, shutdown, inspection, unit optimization, and troubleshooting.
Principal Data Scientist - Gen AI Xometry IncPrincipal Data Scientist - Gen AINorth Bethesda, MD$200,000–$230,000 / yearIn this role, you will serve as a technical leader, owning a 12 month technical roadmap, driving large-scale cross-functional ML and AI initiatives, and setting the long-term scientific direction for AI-driven solutions that enhance Xometry''s service offerings. Generative AI Development: Develop and deploy generative AI models and large language models (LLMs) for multimodal document processing, focusing on extracting structured data from technical drawings, purchasing orders, and other complex documents.
Principal Computational Engineer, 3D CAD & Geometric Intelligence Xometry IncPrincipal Computational Engineer, 3D CAD & Geometric IntelligenceNorth Bethesda, MD$200,000–$230,000 / yearDFM & Sub-Process Intelligence: Drive the methodology for combining classical computational geometry (B-Rep traversal, parametric surface analysis, medial axis, geodesic distance, curvature analysis) with modern learning-based approaches (graph neural networks on B-Reps, point-cloud and voxel encoders, differentiable geometry, neural implicit representations) to detect manufacturability risk across 12+ CNC sub-processes and the broader process catalog. AI/ML Fluency: Familiarity with ML/AI methods relevant to geometry - graph neural networks on B-Reps (BRepGAT, BRepFormer, AAGNet, UV-Net), point-cloud / voxel / SDF encoders, neural implicit representations, NURBS-aware learning - and clear judgment about when classical methods beat learned ones.
Senior Principal Cyber Software Engineer (iOS) Nightwing Intelligence SolutionsSenior Principal Cyber Software Engineer (iOS)Sterling, Virginia$122,000–$253,000 / yearThe team comprises engineers of multiple disciplines including vulnerability research, reverse engineering, CNO/CNE development, hardware emulation, system engineering, and data analytics. Cyber Offense and Defense Experts (CODEX) is seeking a cyber engineer to join our team to solve real-time cyber challenges, working on site with our end users in their spaces.
NewSenior Principal Electro-Optics Engineer General Dynamics Mission Systems, IncSenior Principal Electro-Optics EngineerAnnapolis Junction, Maryland$191,246–$206,000 / yearAs a Senior Principal Electro-Optics Engineer, you will be a leader on the GDMS Free Space Optical (FSO) communications team, and own the architecture, engineering practices, and technical direction for our hardware, helping mature our work from prototype to product. Company 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.
NewPrincipal Information Systems Security Officer SteampunkPrincipal Information Systems Security OfficerMcLean, Virginia$120,000–$145,000 / yearReview and update security authorization documents as needed, but at least annually; Conduct Contingency Plan tests at least annually and updating the plan; Perform system self-assessments as part of the customer's Ongoing Authorization program; Monitor and respond to Information Security Vulnerability Management (ISVM)/Patch Management. Specialized knowledge and experience with evaluating system, network, or infrastructure security controls against requirements such as FISMA, FIPS, and NIST guidelines Knowledge and experience with the vulnerability scanning execution, assessment, and analysis.
Principal Radio Frequency Engineer Two Six Technologies IncPrincipal Radio Frequency EngineerHerndon, VA$215,924–$323,886 / yearThe team is growing and looking for someone with an advanced RF engineering and signal processing background who has an understanding of how to serve as an RF Subject Matter Expert (SME) to lead technical planning, reverse engineer complex RF protocols, and architect solutions for embedded security research programs. Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, Physics, Mathematics (or equivalent military/IC experience) paired with 9+ years of experience in DSP, SDR development, and RF reverse engineering.
Senior Principal Architect - Application Platforms JPMorgan Chase & CoSenior Principal Architect - Application PlatformsMcLean, VADeep enterprise expertise across Application & Collaboration Platforms Architecture areas including collaboration and communication ecosystems, document/content lifecycle management, multimedia toolchains, secure-by-design governance and compliance, integration/interoperability patterns, reliability and lifecycle operations, portfolio rationalization, financial/TCO decisioning, and executive-level change leadership. Leads reuse-first adoption of enterprise-authorized AI capabilities within the work environment to accelerate architecture analysis, option evaluation, and delivery of strategic global solutions, with human-in-the-loop validation and appropriate handling of sensitive data.
NewSenior Principal Program Manager - Government Sector (R-19859) Dun & Bradstreet Holdings IncSenior Principal Program Manager - Government Sector (R-19859)Vienna, VAThe role works closely with the Director of Programs and Research and the Account Executive responsible for the account to provide direction and guidance to allocated analytics and support staff to meet customer objectives and ensure the highest quality of deliverables and service. The Senior Principal, Program Manager (PM) will be responsible for ensuring the successful delivery of assigned programs, management of ongoing contractual relationships and the operational delivery of services and support to Government Sector clients.
Principal Architect - IT Operations Domain JPMorgan Chase & CoPrincipal Architect - IT Operations DomainMcLean, VALeads reuse-first adoption of enterprise-authorized AI capabilities within the work environment to accelerate architecture analysis, option evaluation, and delivery of strategic global solutions, with human-in-the-loop validation and appropriate handling of sensitive data. Translates highly complex technical issues, trends, and approaches to leadership to drive the firm's innovation and enable leaders to make strategic, well-informed decisions about target state architecture.
Principal Specialist Sales Engineer, Data Security - Majors, East Zscaler IncPrincipal Specialist Sales Engineer, Data Security - Majors, EastWashington, DC$175,875–$251,250 / yearZscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training.