Principal Electrical Design Engineer Mercury Systems IncPrincipal Electrical Design EngineerChantilly, VAYou will lead board-level hardware development for mission-critical embedded computing, high-speed digital systems, advanced FPGA solutions, secure processing, and extreme environment electronics supporting operations across air, land, sea, and space. Architect advanced electrical circuit board solutions involving secure processing, storage, networking, FPGAs, high-speed interfaces, and extreme environment electronics.
Principal Aerospace Modeling & Simulation Engineer (TS/SCI) VantorPrincipal Aerospace Modeling & Simulation Engineer (TS/SCI)Herndon, VirginiaVantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help our customers see the world differently, and in doing so, be seen differently. You will serve as the primary intermediary between customers, program leadership, and modeling teams, translating mission needs and customer objectives into executable technical strategies, program roadmaps, and prioritized action plans.
Principal Solutions Architect CIS SecurePrincipal Solutions ArchitectAshburn, Virginia$190,000–$225,000 / yearFull timeOur products and solutions include secure telephones and computers, encrypted tactical communications systems, secure tele- and video-conferencing systems, and specialized systems designed for use within secure networks and challenging operational environments. Serving as a primary technical interface with customers, this individual will translate complex mission, technical, and functional requirements into compliant, functional architectures and help guide solutions from initial concept and customer presentation through design, prototyping, development, and delivery.
Principal Applied Scientist - TS/SCI VantorPrincipal Applied Scientist - TS/SCIHerndon, VirginiaWorking closely with data scientists, machine learning engineers, software developers, and operational subject matter experts, the Principal Applied Scientist is responsible for developing high-fidelity models, validating scientific assumptions, assessing uncertainty, and ensuring that analytical outputs accurately characterize UTS risks and mitigation strategies. This individual combines expertise in computational modeling, applied mathematics, physics, and data science to ensure that machine learning models, agent-based simulations, and analytical frameworks accurately represent real-world phenomena and produce scientifically defensible, operationally relevant results.
New Glenn - Principal Software Engineer Blue OriginNew Glenn - Principal Software EngineerWashingtonand/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, 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.
Principal Value Management Specialist - 90414945 National Railroad Passenger CorpPrincipal Value Management Specialist - 90414945DC$124,600–$161,352 / hourOur values of 'Do the Right Thing, Excel Together and Put Customers First' are at the heart of what matters most to us, and our Core Capabilities, 'Building Trust, Accountability, Effective Communication, Customer Focus, and Proactive Safety & Security' are what every employee needs to know and do to be most impactful at Amtrak. This role coaches VMO stakeholders, leadership across business and technology on LPM, and identifies how to leverage key principles of LPM to solve real problems facing delivery teams, business teams, or their processes.
NewAutomation Principal Engineer Wells Fargo & CoAutomation Principal EngineerMcLean, VA$159,000–$305,000 / yearThey are accountable for execution of all applicable risk programs (Credit, Market, Financial Crimes, Operational, Regulatory Compliance), which includes effectively following and adhering to applicable Wells Fargo policies and procedures, appropriately fulfilling risk and compliance obligations, timely and effective escalation and remediation of issues, and making sound risk decisions. Lead the strategy and resolution of highly complex and unique challenges requiring in-depth evaluation across multiple areas or the enterprise, delivering solutions that are long-term, large-scale and require vision, creativity, innovation, advanced analytical and inductive thinking.
NewPrincipal Software Engineer VantorPrincipal Software EngineerHerndon, Virginia$220,000–$242,000 / yearWorking within an Agile DevSecOps environment, the Senior Developer collaborates with ontology engineers, software engineers, database engineers, data engineers, and Government stakeholders to deliver high-quality software that supports operational mission requirements. This position develops application services, APIs, user interfaces, and backend components that leverage enterprise ontologies, knowledge graphs, and Semantic Web technologies to support data interoperability and mission workflows.
NewSenior Principal Software Developer CACI International Inc.Senior Principal Software DeveloperSpringfield, VA$103,800–$218,100 / yearPay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. The Opportunity: CACI is seeking a experienced Senior Principal Software Developer to support a mission-critical program for the National Geospatial-Intelligence Agency (NGA).
NewPrincipal AWS Cloud Engineer ManTech International CorpPrincipal AWS Cloud EngineerChantilly, VA$141,500–$236,000 / yearThere are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. The Principal AWS Cloud Engineer anchors the design, deployment, and security management of our primary AWS environment-with a strong focus on cloud security monitoring and threat detection-while supporting cross-cloud security alignment across Azure and Oracle Cloud Infrastructure (OCI).
Principal Threat Intelligence Engineer - Remote or Hybrid in MN or DC UnitedHealth Group IncPrincipal Threat Intelligence Engineer - Remote or Hybrid in MN or DCWashington, DCRemote$112,700–$193,200 / yearThe role focuses on ingesting, normalizing, and enriching threat intelligence information, integrating Threat Intelligence Platforms (TIPs) and intelligence sources with security tooling (e.g., SIEM, SOAR, EDR), and deploying automated intelligence-enabled detection and response workflows. The Principal Threat Intelligence Engineer is expected to execute the delivery of technical intelligence solutions to CTI, SOC, Threat Detection, and Threat Hunting teams that accelerate the processing and dissemination of intelligence, increase speed of detection, and enable rapid response.
Principal Consultant - FirstNet Oracle CorpPrincipal Consultant - FirstNetDC$71,200–$158,200 / yearWe are looking for an experienced Consultant to help design, build/configure, activate, and support the implementation of Oracle Health EHR (Millennium) solutions across Federal agencies including the Department of Defense, United States Coast Guard, Veterans Affairs and Indian Health Service. Basic Qualifications: At least 3+ years total combined related work experience and completed higher education, including: At least 2 years healthcare information technology (HCIT) consulting, HCIT support and/or other client-facing or information technology (IT) solution work experience.
Principal Data Scientist PenFed Credit UnionPrincipal Data ScientistMcLean, VirginiaFull timeDemonstrate strong data analysis skills, ability to understand underlying data and complex loss/balance forecasting models, various product features, possess organizational and prioritization skills, as well as strong attention to detail. Ability to interact effectively with team members across the management team, Lines of Business (LOB), credit officers, finance, model governance, oversight, validation, and audit organizations.
NewPrincipal Data Systems Software Engineer Oracle CorpPrincipal Data Systems Software EngineerHerndon, VA$114,600–$234,600 / yearWe work closely with software development, cloud infrastructure, and customer-facing teams to ensure our services remain secure, resilient, and highly available as adoption continues to grow across commercial and sovereign cloud environments. Oracle maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect Oracle''s differing products, industries and lines of business.
Principal Account Executive F5 IncPrincipal Account ExecutiveVARemote$139,200–$208,800 / yearPrepares formal proposals and presentations, presents to all levels of the organization including executives, leads negotiations, coordinates complex decision-making processes and overcomes objectives to closure, and closes sales in a professional and effective manner. Responsible for significant key partner relationship management and development including F5 channel partners, new channel partners and small disadvantaged firms within the Systems Integrators supply chain management system to build channel synergy with the appropriate Systems Integrator.
Principal IT Systems Administrator (Program Services) Nightwing Intelligence SolutionsPrincipal IT Systems Administrator (Program Services)Sterling, VirginiaPerforming routine maintenance and system administration tasks such as software and hardware installations, troubleshooting, system hardening, vulnerability analysis and remediation, Operating System patching and general network administration across various computing systems. Nightwing is seeking a Systems Administrator with a proven ability supporting Information Technology systems and networks in a challenging, high-tempo, dynamic work environment.
Principal Cyber Test Engineer (Onsite) Nightwing Intelligence SolutionsPrincipal Cyber Test Engineer (Onsite)Sterling, VirginiaThe team comprises engineers of multiple disciplines including vulnerability research, reverse engineering, CNO/CNE development, hardware emulation, system engineering, and data analytics. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization.
Principal Supply Chain Professional Nightwing Intelligence SolutionsPrincipal Supply Chain ProfessionalSterling, VirginiaThis role requires working in an environment with advanced supply chain experience, with a variety of government and commercial customers and suppliers, and an advanced level of program management acumen. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges.
Senior Principal Digital Engineer - DE & Kubernetes Tool Administrator ArcfieldSenior Principal Digital Engineer - DE & Kubernetes Tool AdministratorWashington DC, D.C.Full timeAs an industry-leading solutions provider in digital engineering and model-based systems engineering (MBSE), the company delivers MBSE-as-a-Service, integrated digital engineering environment deployments, training and consulting to both commercial and public sector customers. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.
Senior Principal Reverse Engineer Nightwing Intelligence SolutionsSenior Principal Reverse EngineerSterling, Virginia$122,000–$253,000 / yearThisposition requiresdeep technical knowledge of proprietary hardware systems, exploitation methodologies, and defensive strategies to support forensic investigations of compromised edge devices and systems where threat actors have embedded malware deeply within hardware components. Nightwingis supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution.