206 Results for

Principal Jobs in Ashburn, VA

Jobs

New!

Frederick, MD2 days ago

$180,000–$250,000 Per Year

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Reston, VA30+ days ago

Full-time

This role sits at the intersection of advanced modeling, system architecture, and real-world network performance , with MATLAB as a core tool in shaping next-generation solutions. At TeleWorld Solutions , we design, optimize, and deliver high-performance wireless networks for leading operators and technology partners.

New!

Herndon, VA1 day ago

$153,000–$284,000 Per Year

For California, New Jersey, Massachusetts, Seattle, Washington D.C., Maryland Greater Washington D.C. area, the city of Denver, Washington State and New York City, the salary range for this role is $153-$284K. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Falls Church, VA12 days ago

We are looking for an experienced Principal Software Engineer who will be responsible for developing and maintaining our flagship product assets. • Secure our software by addressing any vulnerabilities and by writing high-performing, scalable, and secure software to meet customer demands.

Washington DC, DC8 days ago

Mentor and Scale Field Teams: Act as a thought leader within the organization, mentoring Solutions Consultants and Forward Deployed Engineers and helping to evolve and refine our AI solution delivery best practices. • Influence Product and GTM Strategy: Collaborate closely with product and engineering teams to relay field insights, identify gaps in our prebuilt agent inventory, and influence the product roadmap based on strategic customer needs.

Washington DC, DC10 days ago

By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. For example, Debugging Azure Networking for Elastic Cloud Serverless is part of our efforts, and we want your experience to contribute to a truly exceptional customer experience.

New!

Gaithersburg, MD5 days ago

$131,300–$237,350

As part of a large-scale Scaled Agile (SAFe) software development organization, you will serve as a technical leader and strategic architect, shaping enterprise data solutions that bridge mission needs, systems engineering rigor, and modern Agile delivery. This role is ideal for a highly experienced architect who can operate at both strategic and hands-on levels, influence across teams and programs, and drive the evolution of scalable, secure, and resilient data ecosystems.

New!

Washington, DC1 day ago

Remote

We are seeking a highly skilled, technically proficient and detail-oriented Principal Mechanical Engineer with expertise in metal structures, frame design, pipes and fabrication to support the development of power and cooling infrastructure for data centers. Design and develop mechanical frames, enclosures, and support structures for data center power and cooling products (UPS systems, battery racks, CRAC units, containment systems, LVS, MVS).

New!

Washington, DC1 day ago

Remote

This role will involve designing and developing wiring harness systems, including schematic creation, harness architecture, panel layout, developing specifications, selecting key components, and transitioning design to manufacturing. We are seeking a highly experienced and innovative Principal Controls Engineer to lead the development, optimization and implementation of advanced control systems across critical infrastructure products and automation platforms.

Washington, DC23 days ago

Full-time
Employee

The Salesforce leader will provide thought leadership to our enterprise and mid-market clients, set strategic direction for the "Go-to-Market" practitioners and generally be accountable for ensuring the overall quality execution of business and technology consulting across all Salesforce pursuits and engagements. Slalom Consulting is looking for an experienced, entrepreneurial, and progressive leader to drive Salesforce services and client success with our DC-Chesapeake clients within the healthcare, life sciences, public sector or banking space.

Washington, DC30+ days ago

With supervision from the Senior Directors, Chief Academic Officer and other members of the Home Office Academic Team, Principals and their leadership teams build unique and close-knit communities at each school site focused on the twin elements of rigorous academics and character education. The Academic Assistant Principal works as a key member of the campus leadership team in partnership with other leadership team members and teachers to ensure that all students are making academic and social progress at DC Prep.

Washington, DC30+ days ago

With supervision from the Senior Directors, Chief Academic Officer and other members of the Home Office Academic Team, Principals and their leadership teams build unique and close-knit communities at each school site focused on the twin elements of rigorous academics and character education. The Early Childhood Assistant Principal works as a key member of the campus leadership team in partnership with other leadership team members and teachers to ensure that all students are making academic and social progress at DC Prep.

Washington, DC30+ days ago

With supervision from the Senior Directors, Chief Academic Officer and other members of the Home Office Academic Team, Principals and their leadership teams build unique and close-knit communities at each school site focused on the twin elements of rigorous academics and character education. Set vision for family partnership and lead programming including but not limited to facilitating individual student conferences to support student and family transitions to school, coordinating family orientations, setting vision and direction for Parent Action Team, managing centralized communication including weekly prep pack systems, coordinating other community events.

New!

Washington, DC5 days ago

Full-time

Our work is grounded in five pillars–Academic Excellence, Joy & Sense of Belonging, Highly Effective Teachers and Leaders, Safe, Structured, and Nurturing Learning Environments, and Commitment to College Readiness–which ensure every student is equipped with the knowledge, skills, and confidence to pursue success in college, careers, and beyond. The Assistant Principal of Operations (APO) serves as a strategic partner to the Principal and a key member of the school leadership team at one of KIPP DC’s Early Childhood, Elementary or Middle schools.

Washington, DC30+ days ago

You will hone or learn new skills including research, presentation, writing, professional etiquette, You will gain meaningful experience that enhances both your professional skills and sense of purpose; You will advance and boost your professional career by helping you to make professional connections and giving you real-world experience at the intersection between climate and emerging technologies; and. Strong analytical and research skills including critical thinking, organizational and problem-solving skills; Effective interpersonal and communication skills; Ability to work well within a team and individually; Seeking a complementary range of specialisms (charity, commercial, corporate, contract, employment, litigation, and others).

New!

Washington, DC4 days ago

Full-time

Position Title:PrincipalReports To:Executive DirectorClassification:Exempt (Full-Time, Salaried)School Type:Small Public Charter High School for Girls, Washington, D.C. Approximately 250 students Program:International Baccalaureate Career Program (IBCP)POSITION OVERVIEWGirls Global Academy (GGA) is a small, mission-driven public charter high school committed to empowering young women in Washington, D.C. through a college-preparatory, globally focused education grounded in the International Baccalaureate Career Program (IBCP). CORE COMPETENCIES & ATTRIBUTESThe Executive Director will screen for evidence of the following competencies in all candidates: CompetencyWhat We Look ForInstructional ExpertiseCan articulate and model high-quality, differentiated instruction; strong track record of improving teacher practice through coaching.

Washington, DC30+ days ago

Full-time

Empowering Others: Actively listen to other school community members; seeks to understand others’ views and needs, intentionally builds trust within and across teams of people to promote collaboration and opportunities for shared ownership, consistently demonstrates respect and appreciation for others by empathizing, valuing their time and contributions, and being available and responsive to their needs. QualificationsKIPP DC is looking for vice principal candidates who are committed to KIPP DC’s mission that all students can learn and achieve at high levels, have a strong teaching background, a commitment to creating identity-affirming learning experiences, and are looking to develop the leadership skills necessary to lead great schools.

Washington, DC30+ days ago

Full-time

The Director oversees the team that develops principal and surrogate daily and long-term schedules; ensures these individuals are briefed on scheduled activities and that their engagements are effectively planned and executed; ensures all briefing and logistics materials are compiled in a timely and thorough manner; manages information flow among principals, surrogates and staff, and external stakeholders; and supports special events and ad-hoc projects. Manage a team that includes the Director of the Office of Gabby Giffords, the Scheduling Manager who supports drafting and implementing the principals’ schedules, the Senior Events Manager and the Executive Assistants who support Congresswoman Giffords and the Executive Director.

McLean, VA30+ days ago

$91,200–$136,800 Per Year

Bachelor’s degree from an accredited university with 8 years in Contracts, Subcontracts, or Procurement Administration, or related professional experience - OR - a Master's degree with 6 years in Contracts, Subcontracts, or Procurement Administration, or related professional experience: In lieu of degree High school diploma or equivalent with 12 years of relevant experience required. + Bachelor’s degree from an accredited university with 5 years in Contracts, Subcontracts, or Procurement Administration, or related professional experience - OR - a Master's degree with 3 years in Contracts, Subcontracts, or Procurement Administration, or related professional experience: In lieu of degree High school diploma or equivalent with 9 years of relevant experience required.

Manassas, VA30+ days ago

Share by Email Share on LinkedIn Share on X (http://www.x.com/intent/post?url=https%3A%2F%2Fcareers.learningcaregroup.com%2Fsearch%2Fjobdetails%2Fx%2F3f975df4-f8fc-49af-b445-5971ca220efa%3Futm_campaign%3Dss_x) The Principal is responsible for all aspects of effective school operations, ensuring the safety of the children, supervising the school staff, and managing delivery of quality early education programming.

Washington, District of Columbia30+ days ago

The Resident Principal program is designed to build leadership capacity and readiness for future Principal opportunities within Friendship Public Charter School; however, successful completion of the residency does not guarantee placement into a Principal role. The Resident Principal role is a minimum 18-month leadership development program designed to prepare high-potential school leaders for future Principal roles within Friendship Public Charter School.

Washington, DC30+ days ago

Full-time

SE Washington, DC11 days ago

Full-time

Compare dates for ship building, including dates associated with delivery of vendor-supplied GFE (required delivery dates, estimated delivery dates, and shipyard need dates) to anticipate impacts to schedule or risks associated with potential delivery issues. • Coordinate with government program offices, engineering teams, original equipment manufacturers, shipbuilders/shipyards, and support organizations to align delivery schedules and prevent production delays.

Washington, DC14 days ago

$168,000–$297,000 Per Year

Since 2002, Concentric has built a national reputation for excellence in ratemaking and utility regulation, litigation support, market strategy, and financial advisory services, working with investor-owned utilities, regulators, and other industry participants on complex, high-stakes matters. This role is designed for an experienced professional who has personally led cost-of-service analyses, defended positions in contested proceedings, and provided expert testimony before FERC, including on prudence and cost recovery issues.

Washington, DC14 days ago

$167,500–$212,700 Per Year

As a Principal Consultant Project Manager, you will be responsible for managing most aspects of various client engagements – including communicating with clients on project scope project updates, working within budgets, delegating work to colleagues, and ensuring all deliverables are client-ready and free from any errors. Since 2002, Concentric has built a national reputation for excellence in ratemaking and utility regulation, litigation support, market strategy, and financial advisory services, working with investor-owned utilities, regulators, and other industry participants on complex, high-stakes matters.

Arlington, VA12 days ago

$220,000–$250,000 Per Year

VT-ARC is seeking a Principal Enterprise Network Engineer to serve as a senior technical authority for enterprise network architecture, implementation, sustainment, and modernization supporting mission-critical programs within TS/SCI environments. The position is not limited to a single vendor stack or a narrow WAN/SD-WAN scope; it includes holistic network engineering across LAN, WAN, campus, data center, classified, air-gapped, multi-enclave, and mission communications environments.

Washington, DC22 days ago

Remote

The Senior Solutions Architect is the senior technical authority responsible for the design, integration, automation, and operational success of AppGate's Zero Trust Network Access (ZTNA) platform across U.S. Federal and DoD environments. Integrate Appgate ZTNA with third party systems and sources of trust or risk telemetry, including identity providers such as SAML, OIDC, RADIUS, LDAP, NGFWs, entitlement automation systems, SIEM, SOAR, ITSM, and others.

Frederick, MD22 days ago

Duties may include but are not limited to; general geotechnical engineering practice including the preparation of geotechnical reports/calculation, technical support of field staff, review of construction inspection daily field reports, and occasional project site field visits related to the projects you are involved in. Candidate will work with our geotechnical and materials testing/inspections departments and be responsible for a wide variety of projects for public and private sector clients.

Fairfax, VA30+ days ago

This individual will provide systems engineering leadership across R&D and product development programs, play a key role in shaping technology and product roadmaps, and contribute to high-impact strategic business opportunities. We are seeking a talented, self-driven, and technically exceptional Principal Systems Engineer to lead multidisciplinary engineering teams in the development of complex electronic systems for space applications.

Rockville, MD13 days ago

$165,000–$220,000 Per Year

7+ years of experience in the design, analysis, build, and test of space-rated metallic pressure vessels and related propulsion hardware, including: Familiarity with ANSI/AIAA S-080A, launch vehicle interfaces, and range safety requirements. About Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies.

Frederick, MD27 days ago

$144,800–$199,100 Per Year

Design and develop web-based applications and micro-services using both front-end and back-end technologies (full stack development), including but not limited to technical design, coding, and unit testing to generate high quality deliverables to achieve product release objectives. If hired, employee will be in an “at-will position” and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.

Silver Spring, MD30+ days ago

Remote

Contractor

The Principal Systems Analyst ensures analytical rigor, quality, and compliance across the project life cycle and provides leadership and oversight for systems analysis activities performed in support of complex, mission-critical programs. This role is responsible for translating operational and user needs into functional requirements and integrated solutions that support the planning, development, acquisition, operation, and life-cycle management of NOAA marine, aviation, and associated mission systems.

Silver Spring, MD30+ days ago

Remote

Contractor

This role supports the planning, development, acquisition, operation, and life-cycle sustainment of NOAA marine, aviation, and associated mission systems by translating operational requirements and engineering designs into effective, compliant, and sustainable logistics and support solutions. The Principal Logistician ensures logistics considerations are fully integrated into system design and program execution, maintains quality across the project life cycle, and provides leadership and oversight to logistics and logistics analysis personnel.

Manassas, VA16 days ago

Embedded in our Integrated Product Development Team (IPDT), your focus will be on electrical and avionics systems installation, applying DFM and DFA principles to enable efficient, scalable final assembly operations - and ensuring production test processes are built in from day one. Our 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.

Manassas, VA16 days ago

Our 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. As our Principal Manufacturing Engineer – Primary Structures, you'll take on one of the most consequential roles in the EL9 build: owning manufacturability and integration for major load-bearing structures - fuselage, wing, empennage, and primary structural assemblies.

Manassas, VA30+ days ago

Electra.aero is seeking a Principal Flight Controls Engineer to serve as a senior technical authority and flight controls certification subject‑matter expert for the EL9 Ultra Short Takeoff and Landing aircraft. At Electra, we're pioneering sustainable aviation by developing hybrid-electric Ultra Short Takeoff and Landing aircraft designed to transform regional air mobility by making air travel more efficient, quieter, and environmentally friendly.

Manassas, VA30+ days ago

$160,000–$200,000 Per Year

At Electra, we're pioneering sustainable aviation by developing hybrid-electric Ultra Short Takeoff and Landing aircraft designed to transform regional air mobility, by making air travel more efficient, quieter, and environmentally friendly. Able to operate from soccer field-sized spaces, our Ultra Short unlocks a new era of aviation through what we call Direct Aviation - the next level of connectivity bringing air travel closer to where we live, work, and play.

Manassas, VA30+ days ago

This role will be responsible for the aircraftelectrical systems - including power distribution, energy storage, conversion, and system safety protections - ensuring reliable, certifiable, and high-performance operation across the full aircraft lifecycle. At Electra, we're pioneering sustainable aviation by developing hybrid-electric Ultra Short Takeoff and Landing aircraft designed to transform regional air mobility, by making air travel more efficient, quieter, and environmentally friendly.

Manassas, VA30+ days ago

At Electra, we're pioneering sustainable aviation by developing hybrid-electric Ultra Short Takeoff and Landing aircraft designed to transform regional air mobility, by making air travel more efficient, quieter, and environmentally friendly. The Principal Systems Test Engineer will serve as a technical authority for test setup, execution, and data analysis, while driving Electra's test capability development and guiding teams across all test lab environments.

Herndon, Virginia23 days ago

$146,108–$200,000 Per Year

Monitor and translate emerging AI interoperability protocols (e.g., MCP, A2A, OpenInference, OpenTelemetry, GenAI semantic conventions) into enterprise-wide architecture guidelines and governance guardrails. EchoStar will provide reasonable accommodation to otherwise qualified job applicants and employees with known physical or mental disabilities, unless doing so poses an undue hardship on the Company, poses a direct threat of substantial harm to others, or is otherwise not required by law.

Chantilly, Virginia30+ days ago

ECS is currently ranked #60 in Engineering News-Record’s Top 500 Design Firms (April 2026), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #50 in Zweig Group’s Hot Firm List (May 2025). Bachelor and/or Master of Science in Civil Engineering, Environmental Engineering, or other Engineering degree applicable to Environmental Consulting, Natural or Environmental Science, Geology, or other degree relevant to the practice of Environmental Consulting.

Herndon, VA30+ days ago

For Senior Principal level: A Bachelor's degree with 9+ years of relevant experience; OR a Master's degree with 7+ years of relevant experience; OR a PhD with 4+ years of relevant experience an additional 4 years of experience may be considered in lieu of a degree requirement. For Staff level: A Bachelor's degree with 14+ years of relevant experience; OR a Master's degree with 12+ years of relevant experience; OR a PhD with 9+ years of relevant experience an additional 4 years of experience may be considered in lieu of a degree requirement.

Herndon, VA30+ days ago

Candidate will perform test-driven software engineering and development activities associated with designing, developing, maintaining, and enhancing analytic systems using an Agile DevSecOps model. Experienced front-end software engineer to develop services using modern techniques such as REST, JSON, Python, JavaScript Web UI frameworks (e.g., JQuery, Angular, React), and Docker.

Herndon, VA30+ days ago

A Bachelor's degree and 9 years of relevant experience OR a Master's degree with 7 years of relevant experience OR a PhD with 4 years of relevant experience; An additional 4 years of experience may be considered in lieu of the degree requirement . o Help write and maintain scripts for process improvements (ex: stage/unstage builds, branch tag automation, automating variance corrections across networks).

Germantown, MD30+ days ago

Job Summary: We are looking for a Principal Electrical Engineer with 12+ years’ experience in design and development of Application Specific Integrated Circuits (ASIC) and micro-controller based embedded systems, specifically for battery powered medical devices. Building system architecture for sensor interface and connectivity to wearable and mobile devices using technologies such as near field communication (NFC) and Bluetooth.

Manassas, VA16 days ago

Our 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.

New!

Reston, VA4 days ago

$200,000–$275,000 Per Year

We are partnering with our client, Galaxia Technologies, to hire a Principal Data Engineer – Mission Data Pipelines (Reston, VA) to play a key role in advancing the Department of the Air Force’s Integrated Fires Command and Control (DIFC2) Program. Galaxia Technologies is seeking a Principal Data Engineer – Mission Data Pipelines to design, implement, and sustain robust mission data pipelines supporting the Department of the Air Force’s DIFC2 program and the Horizon initiative.

McLean, VA30+ days ago

If you have the courage to take on a wide variety of complex challenges, then you will experience a unique working environment where innovative teams blend different perspectives, disciplines, and technologies to discover new ways of solving complex problems. Technical Resource and Knowledge Bridge: + Serve as the internal technical authority on ISR systems, providing guidance to program management and engineering teams lacking specialized intelligence collection and surveillance knowledge.

Reston, Virginia30+ days ago

$146,000–$234,000 Per Year

Responsibilities: Peraton is seeking a Systems Architect Principal to join our national intelligence program in Northern Virginia as the primary visionary and strategist to transition the client’s Enterprise IT Infrastructure to a cutting edge resilient, scalable and self-healing Infrastructure environment. As the worlds leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.

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Principal Jobs in Ashburn, VA

Jobs

Tax Principal (Hybrid)Jobot

Principal Engineer - System Design & SimulationTeleWorld Solutions

Principal, Program Management Excellence- Acoustic SystemsL3Harris Technologies

Principal Software EngineerKastle Systems

Principal AI Field ArchitectBoomi

Principal Software Engineer (Networking) - PlatformElastic

Principal Data ArchitectLeidos

Principal Mechanical Integration Engineer – DCI Pipes, Frames and Structures (REMOTE)JABIL CIRCUIT, INC

Principal Electrical Controls Engineer - Data Center InfrastructureJABIL CIRCUIT, INC

Enterprise Go-to-Market Senior Principal- DC ChesapeakeSlalom LLC

SY26-27 Academic Assistant PrincipalDC Prep

SY26-27 Early Childhood Assistant Principal (prek3/prek4)DC Prep

SY26-27 Community Assistant PrincipalDC Prep

Assistant Principal of OperationsKIPP DC

UNPAID VOLUNTEER - Principal / Senior / Legal Advisors / Assistants (US-based)Blockchain & Climate Institute/ BCI America Inc.

SY 26-27 PrincipalGirls Global Academy

High School Vice Principal (SY26 - 27)KIPP DC

Director, Principals and SurrogatesGiffords

Principal Contract Administrator / Sr Prncpl Contract AdministratorNorthrop Grumman

Preschool PrincipalLearning Care Group

Resident PrincipalFriendship Public Charter School

Elementary Vice Principal (SY26 - 27)KIPP DC

Principal Acquisition AnalystELS, Inc.

Principal Consultant/Lead Expert Witness - FERC Ratemaking & Regulatory Expert Electric & Gas PipelinesConcentric Energy Advisors, Inc.

Principal Consultant Project Manager - Utility Return on Equity & Cost of CapitalConcentric Energy Advisors, Inc.

Principal Enterprise Network EngineerVirginia Tech Applied Research Corporation

Principal Federal Solution ArchitectGormat

Principal Geotechnical/CMT EngineerHillis-Carnes

Principal Systems EngineerIntrepidus Talent Solutions

Principal/Senior Engineer, PropulsionProtingent

Principal Application EngineerLegal & General America

Principal Systems AnalystThink Tank, Inc.

Principal LogisticianThink Tank, Inc.

Principal Manufacturing Engineer – Systems InstallationElectra

Principal Manufacturing Engineer - Primary StructuresElectra

Principal Flight Controls System EngineerElectra

Principal Mechanical Systems Engineer (Aerospace)Electra

Principal Electrical Engineer (Aviation)Electra

Principal Systems Test Engineer (Aerospace)Electra

Principal Wireless Standards EngineerEchoStar

Environmental Senior Project Manager - PrincipalECS Ltd

Senior Principal/Staff Cyber Software Engineer (TS/SCI)SHLD, Inc.

Senior Principal/Staff Cyber Software Engineer CI PolySHLD, Inc.

Principal Cyber Software Engineer (Front End/UI-Focused) CI PolySHLD, Inc.

Senior Principal Cyber Systems Engineer (DevOps Engineer) TS/SCI with CI PolySHLD, Inc.

Principal Electrical EngineerRussell Solutions Group

Principal Systems Test EngineerElectra

Principal Data Engineer – Mission Data PipelinesBOOST LLC

Principal Systems Engineer - ISR SMEQinetiQ US

Systems Architect, PrincipalPeraton

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