1,249 Results for

Principal Engineer Jobs in International, WA

Jobs

Dulles, VA

$240,000–$285,000 / year
Full time

Our client is seeking a Principal Systems and Integration. engineering and integration support to an operational.

23 days ago

Baltimore, MD

$130,000–$156,000 / year

Along with security platform mastery in more than one platform area (IDS/IPS, firewall/WAF, access and identity, malware defense, threat modeling, exposure management, among others), the Principal Cybersecurity Engineer is formally trained in enterprise IT design and architecture practices. The Principal Cybersecurity Engineer has a demonstrated mastery in multiple security and non-security technology platforms, with the ability to both lead and advise on the overall designs and strategies of both security and non-security technologies.

1 day ago

Baltimore, MD

$80–$85 / hour
Contractor
Full time

p>Client Info / Who they are: Above and Beyond Talent Acquisition represents the country’s largest lending-exclusive financial company, serving millions with safe, affordable installment loans through 1,500 branches in 44 states. For over 100 years, their dedicated team has helped customers improve their financial lives with responsible, transparent solutions for debt, medical bills, home improvements, and auto purchases.

5 days ago

Odenton, MD

$116,350–$210,325

June 16, 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.

Experience evaluating enterprise network architectures and developing improvement plans across LAN, WAN, WLAN, routing, switching, firewalls, VPN, proxies, security stacks, software-defined networking, and cloud-connected environments.

2 days ago

Tysons, VA

$140,000–$215,000 / year

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1 day ago

Reston, VA

$98.48–$98.48 / hour

li>Must have healthcare payer experience, specifically in one or more of the following: Member / customer service, Claims, Enrollment, Benefits.

Ability to deliver high level design use cases demonstrating clear conceptual architecture, simple, logical explanation of data movement, rationale behind integration choices, and distinction between solution architecture vs. Candidates must be able to deliver high level use cases, demonstrating how they would design an architectural approach for a business scenario — explaining conceptual data flows (“move data from here to here and why”) and high level integration choices.

7 days ago

Multiple Locations

Full time

BGP proficiency across diverse platforms including Azure VWAN, Arista, Aruba, AWS Transit Gateway, Virtual Network Gateways, VPNs, and Palo Alto. This position typically operates as a team of one, but for larger initiatives you’ll coordinate with engineers borrowed from DevOps, Network Security, and other teams for periods ranging from weeks to months.

5 days ago

Annapolis Junction, MD

$133,555–$175,000
Full time

7 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in realted field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 12 years relevant experience. HII, Mission Technologies has a need for an AI/ML Engineer who will be responsible for designing advanced model architectures, developing machine learning pipelines, and optimizing AI systems for operational deployment in government and mission critical environments.

30+ days ago

Springfield, VA

Full time

5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

30+ days ago

Washington, DC

$158,843–$190,629 / year

As Senior Principal Engineer in EEI’s Reliability department, you will be a go-to expert for member companies and a recognized voice in national conversations about grid reliability and resilience—working directly with NERC, FERC, and the DOE. Our members deliver electricity to more than 250 million Americans across all 50 states and Washington, DC, and together the electric power industry supports more than 7 million jobs nationwide.

3 days ago

Reston, VA

p>Extraordinary teams building inspiring projects:

Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the world''s infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place.

Required Knowledge and Skills:

Proven ability to perform electrical system calculations for cable sizing, ampacity, grounding, lighting, etc. for combined cycle power plants,
Ability to perform short circuit and power system analyses, including transient stability analysis for a power project operating in island mode.

7 days ago

Manassas, VA

p style="padding:0px;white-space:pre-wrap;vertical-align:baseline;background-color:transparent;text-align:left">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.

Electra is seeking a Principal Electrical Engineer to lead the development, integration, and optimization of electrical power systems on Electra'sflagship nine-passenger EL9 aircraft.

30+ days ago

Sterling, VA

However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. We develop complex, radiation effects mitigated, designs that balance competing requirements in modern space programs, delivering cutting-edge solutions that enable our customers to achieve more in space.

30+ days ago

Manassas, VA

$130,000–$180,000 / year

Our technology enables aircraft to take off and land in soccer field-sized spaces, unlocking thousands of new operating locations and enabling what we call Direct Aviation: quiet, efficient, point-to-point travel closer to where people live and work.

As a Senior / Principal Engineer - Electromechanical Actuation, you will serve as the technical authority for our aircraft actuation systems, with primary responsibility for development of the actuation systems on the EL9 Ultra Short Aircraft.

15 days ago

Reston, VA

p>Extraordinary teams building inspiring projects: Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the worlds infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place.

Ability to optimize selection and sizing of control valves for steam, water and gas services.

Ability to select and specify instrumentation for measurement of process parameters including temperature, pressure and flow for steam, water and gas services.

Experience with layout and design of control rooms and control room HMI equipment.

30+ days ago

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. Highly skilled in project engineering and design work, the Principal Electrical Engineer handles complex and high-impact assignments, providing technical expertise to guide project success.

30+ days ago

Rockville, Maryland

p>Quantum Space, located in Rockville, Maryland, is seeking Senior Engineers (Engineer III)/Principal Engineers (Engineer IV) in Propulsion to lead the development of advanced flight-qualified propellant tanks and chemical/electric spacecraft propulsion systems.

To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. § 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

20 days ago

Rockville, MD

$160,000–$200,000 / year

6 days ago

Fairfax, VA

The Principal Hardware Engineer partners closely with cross-functional engineering teams, program leadership, and customers to solve complex technical challenges, support program execution and business development efforts, and shape the long-term technology roadmap for the organization. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information.

30+ days ago

Germantown, MD

p>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.

30+ days ago

Manassas, VA

Our technology enables operations from soccer‑field‑sized spaces, unlocking thousands of new locations and enabling what we call Direct Aviation: quiet, efficient, point‑to‑point travel closer to where people live and work. This is a high‑impact technical leadership role responsible for the architecture, performance, safety, and certification readiness of the aircraft''s electrical systems-including power distribution, energy storage, conversion, and protection.

19 days ago

Maryland

30+ days ago

Bay Area, Washington

and/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. You will solve unprecedented challenges in ensuring hardware survives the rigors of launch, orbit, and long-duration deployment—pioneering physics-of-failure methodologies, predictive reliability frameworks, and AI-driven engineering approaches that redefine how high-stakes hardware is designed, qualified, and validated.

8 days ago

Washington, DC

$270,000–$400,000 / year

This role requires deep expertise in state estimation theory, extensive practical experience implementing ownship navigation systems in the aerospace domain, and strong software development skills for production-quality navigation code. The engineer will design and implement a unified navigation architecture that supports traditional GNSS/IMU fusion while being extensible to all-source navigation strategies incorporating diverse sensing modalities for GPS-degraded and denied environments.

30+ days ago

$105,400–$158,000 / year

p>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 candidates experience, education, skills and current market conditions. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nations history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon.

30+ days ago

$105,400–$158,000 / year

30+ days ago

$200,000–$310,000 / year

li>Lead or support signature testing efforts, including indoor and outdoor RCS range tests, validation campaigns, and supplier-level hardware evaluations. With offices and facilities across the U.S., Europe, the Middle East, and the Asia-Pacific, Shield AI's technology actively supports operations worldwide.

30+ days ago

Baltimore, MD

$87,600–$131,400 / year

li>Developing subject matter expertise in one or more areas of RF/Microwave discipline including but not limited to: RF components, assemblies, subsystems, requirements development, EM and related modeling & simulation, RF test verification, production test support, and design for producibility. This program provides comprehensive hands-on experience including professional development, networking with leadership, and training specifically focused on NG leadership principles, company history, customer/stakeholder engagement, product and service overview, and core job responsibilities.

30+ days ago

Sterling, VA

p>Qualifications You Must Have:

Typically requires a degree in Systems Engineering, Electrical Engineering, Aerospace Engineering, and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience.
Role Description:
The ideal candidate brings expert level systems engineering experience, strong knowledge of avionics or mission systems, and the ability to work across multidisciplinary teams in a defense or aerospace environment.

22 days ago

$155,000–$180,000 / year

p>This role is accountable for defining and documenting control strategies and data interfaces between substation devices, generation resources, data centers, remote operation centers, and external entities, and for driving reliable data connectivity and control readiness from design, commissioning, and turnover.

Monitor construction progress remotely and via on site visits, support resolution of field issues, attend in person meetings with stakeholders, and provide on-site programming and field support during commissioning when required.

19 days ago

Sterling, VA

Qualifications You Must Have: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

30+ days ago

Reston, VA

p>Extraordinary teams building inspiring projects:

We are committed to being a company where every colleague feels that they belong-where colleagues feel part of "One Team," respected and rewarded for what they bring, supported in pursuing their goals, invested in our values and purpose, and treated equitably.

7 days ago

Baltimore, MD

$135,800–$203,600 / year

The Manufacturing Systems Engineer will be responsible for shaping and executing the Product Line strategy across the Airborne Multifunction Sensors (AMS) division as well as consulting as a subject matter expert on capital projects, MTA and IRAD efforts.

Experience with processes and materials used to make Actively Electronically Scanned Arrays (AESA) including semiconductor technology, microelectronic assembly, printed circuit board fabrication, surface mount technology, electromechanical assembly, and materials for RF performance.

13 days ago

$108,800–$163,200 / year

p>Northrop Grumman Space Systems is a strategic partner specializing in delivering intelligence, surveillance, and reconnaissance solutions for classified and unclassified missions in space.

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.

30+ days ago

Reston, VA

p>Extraordinary teams building inspiring projects:

Required Knowledge and Skills:

Ability to perform power plant and equipment layout considering requirements for access, operations, maintenance and safety,
Ability to optimize pipe routing considering requirements for cost, access, operations, flexibility, and thermal stress.

7 days ago

Ashburn, VA

$120,500–$231,000 / year

Familiarity with Network Function Virtualization (NFV), Identity and Access Management (IAM) solutions, the system development lifecycle, mitigating network/system/application layer attacks, and working with SQL/NoSQL databases and UNIX/Linux operating systems. The role requires deep expertise in network protocols, hands-on experience with routers/switches, SIEM tools (especially SPLUNK and ISE), and a strong focus on automation, threat detection, incident response, and continuous security validation across the organization.

30+ days ago

Reston, VA

$154,050–$278,475 / year

li>MEP Systems Expertise: Strong multidisciplinary understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment systems, filtration systems, and backup power infrastructure.

The successful candidate will leverage extensive engineering expertise to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine functional capabilities and mission relevance.

11 days ago

Baltimore, MD

$120,000–$145,000 / year

p>The Baltimore Environmental Simulation and Reliability Lab operates within a growing coast-to-coast defense testing network (Baltimore + Santa Clara) with active ITAR/EAR compliance, CMMC Level 1 (Level 2 in progress), and ISO/IEC 17025 accreditation including MIL-scope testing. Eurofins is one of the market leaders in certain testing and laboratory services for genomics, discovery pharmacology, forensics, advanced material sciences and in the support of clinical studies, as well as having an emerging global presence in Contract Development and Manufacturing Organisations.

30+ days ago

Largo, MD

Some of our core services include providing clean water services (Stormwater Management Division); flooding prevention for buildings and structures (Sustainability Division and Stormwater Management Division); collecting, processing and diverting waste from the County-operated landfill, commercial facilities and householders (Resource Recovery Division); providing sustainability services to reduce greenhouse gas and emission (Sustainability Division); and facilitating pet adoptions, managing an animal holding facility, issuing pet licenses, investigating cruelty complaints and conducting humane outreach and education events (Animal Services Division).

This is a supervisory professional engineering and administrative position in the Flood Management and Environmental Resilience Division involving the application of complex engineering principles and practices and basic administrative techniques in the development, design, construction, maintenance and operation of stormwater management systems, storm drainage systems and flood control facilities.

1 day ago

Lead challenging projects including the world's most secure processing and storage hardware, advanced FPGA RF and signal processing systems, Digital Radio Frequency Memory (DRFM) devices, advanced display technologies, and extreme environment electronics that power operations across Space, Air, Land, and Sea.

Design using cutting-edge technology including 400/200/100G Ethernet, PCIe Gen 4/5, DDR4/5 SDRAM, high-speed fiber optics from Intel, Xilinx, Altera, NVIDIA, Broadcom, TI and beyond.

30+ days ago

Arlington, VA

li>Deep knowledge of data center electrical infrastructure and project delivery (e.g., MV/LV distribution, substations, UPS and backup generation interfaces, protection schemes, commissioning) and how a utility‑scale BESS integrates at the site or grid level.

Expertise to engage deeply with engineering and operations teams on topics such as medium-voltage electrical distribution, load profiles, interconnection, power quality, controls/integration, and project execution constraints.

12 days ago

Arlington, Virginia

For more information, please visit fluenceenergy.com.

Deep knowledge of data center electrical infrastructure and project delivery (e.g., MV/LV distribution, substations, UPS and backup generation interfaces, protection schemes, commissioning) and how a utility‑scale BESS integrates at the site or grid level.

5 days ago

Arlington, VA

p>Specific duties include:

Managing the bridge safety inspection program, ensuring that the biennial bridge inspections are completed in accordance with Federal and State requirements;
Developing and prioritizing the 4-year bridge repair maintenance plan including preparing annual bridge repair and maintenance budgets for the County's bridge inventory;
Creating the bridge component of the Capital Improvement Plan including planning level cost estimates and scoping for future bridge capital projects and rehabilitations;
Procuring design and construction contractors to perform Annual Maintenance and Repair Work, and complete Capital Improvement Projects;
Directing consultant development of plans, specifications, estimates, and bid documents for construction contractors to execute the work contained in the Annual Maintenance and Repairs Work Plan and bridge capital improvement plan including reviewing consultant work products to ensure that they effectively meet the County's goals and are accurate and complete;
Preparing and reviewing detailed design and construction engineering plans including cost estimates, technical reports, and associated documentation for transportation related projects;
Collaborating project implementation with internal teams, external agencies, and stakeholders to ensure projects are completed on time and within budget, while complying with regulatory requirements;
Developing materials for and participating in pre-bid meetings, public engagement presentations, construction meetings, and other project-related events; and.
The Department of Environmental Services (DES) is seeking a skilled Principal Engineer (Bridges) to join our Engineering Bureau - a 60 member team delivering full-scale surveying, design, and construction management services for a wide range of public works capital improvement projects.

30+ days ago

Fairfax, VA

The Principal Systems Engineer works collaboratively with program managers and project engineers to ensure successful program execution and is responsible for guiding program teams to solving problems through a wholistic, systems engineering approach.

30+ days ago

$123,400–$185,000 / year

p>This role is part of the GSC team and will be challenged to resolve issues and implement solutions, in a fast-paced environment - including process improvements, tools, metrics, data integration, and coordination and collaboration with key cross-functional stakeholders across the MGMN.

Basic Qualifications:

Bachelor's degree in STEM with a minimum of 8 years of relevant experience in Quality or Supply Chain; Masters degree in STEM with a minimum of 6 years of relevant experience in Quality or Supply Chain.

21 days ago

Manassas, VA

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.

30+ days ago

Germantown, MD

Our business spans satellite television service, streaming and on-demand programming, smart home installation services, 5G wireless consumer and commercial services, internet and other enterprise products.

Requires: Bachelor's degree (or foreign equivalent) in Computer Science or a closely related technical field plus 7 years of software application development experience in the job offered or similar roles.

5 days ago

Germantown, MD

p>Requires: Bachelor's degree in Computer Science, or a closely related field plus 5 years of experience in job offered, senior software engineer, or closely related role. Whether through research and development, technology innovation or solution engineering, our team members play a vital role in connecting consumers with the products and platforms of tomorrow.

30+ days ago

Dulles, VA

Full time

p class="MsoNormal" style="line-height:115%">To learn more about careers at Southland, explore our career opportunities, follow us on social media, and check out our website.

30+ days ago

Herndon, VA

$170,000–$200,000 / year

By detecting, geolocating, and characterizing radio frequency emissions worldwide, HawkEye 360 delivers trusted domain awareness and early warning indicators to the US Government and allied partners. As a deeply technical principal engineer, you'll define embedded system architectures, establish development and testing best practices, and guide complex FPGA-SoC integration challenges.

30+ days ago

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Principal Engineer Jobs in International, WA

Principal Systems & Integration Engineer Rylex Consulting

Principal Cybersecurity Engineer- Architecture OneMain Financial

Principal Software Engineer Above and Beyond Talent Acquisition

Principal Network Engineer Leidos

Senior Software Engineer Jobot

Principal Solution Architect - Healthcare System One

Principal Network Engineer Infovision

Principal AI/ML Engineer - 27560 Company Confidential

Principal Identity, Credential, and Access Management (ICAM) Architect Company Confidential

Senior Principal Engineer Edison Electric Institute

Principal Engineer - Electrical Bechtel Corp

Principal Electrical Engineer (Aviation) Electra

Principal Electrical Design Engineer Trident Systems Inc

Senior / Principal Engineer - Electromechanical Actuation Electra Aero Inc

Principal Engineer - Control Systems Bechtel Corp

Principal Electrical Engineer, NA Vantage Data Centers Management Co LLC

Senior Engineer (Engineer III) / Principal Engineer (Engineer IV) – Propulsion Quantum Space

Senior Engineer Engineer III / Principal Engineer Engineer IV - Propulsion Quantum Space

Principal Electrical Engineer Trident Systems Inc

Principal Electrical Engineer Russell Solutions Group

Principal Electrical Engineer Electra Aero Inc

Principal Electrical Engineer, NA Vantage Data Centers

Principal Engineer - Product Integrity Blue Origin

Principal Engineer, State Estimation (R4602) Shield AI Inc

Space RADAR Data Processing - Principal/Sr Principal Engineer Systems Northrop Grumman Corp

Space RADAR Tasking Model - Principal/Sr Principal Engineer Systems Northrop Grumman Corp

Principal Engineer, Survivability (R4608) Shield AI Inc

Engineer/Principal Engineer RF Microwave Design (SkillBridge) Northrop Grumman Corp

Senior Principal Engineer, Systems Engineering (Onsite) RTX Corp

Principal Engineer, SCADA Engineering (BESS) Invenergy LLC

Principal Electrical Engineer (Onsite) RTX Corp

Principal Engineer - Civil/Structural Bechtel Corp

Sr Principal Engineer Manufacturing Systems Northrop Grumman Corp

Space Mission Ground Simulator - Principal / Sr Principal Systems Engineer Northrop Grumman Corp

Principal Engineer - Plant Design Bechtel Corp

Network Security Principal Engineer Verizon Communications Inc

Principal Mechanical Engineer SME Leidos Holdings Inc

Principal Engineer, Defense Environmental & Reliability Testing Eurofins Scientific SE

Engineer IV (Principal Engineer) Prince George's County Government, MD

Principal Electrical Design Engineer Mercury Systems Inc

Data Center BESS Principal Engineer Fluence Energy Inc

Data Center BESS Principal Engineer Fluence Energy

Principal Engineer (Bridges) Arlington County Government

Principal Systems Engineer Trident Systems Inc

Sr Principal Engineer Supplier Quality Northrop Grumman Corp

Principal Manufacturing Engineer – Systems Installation Electra

Principal Engineer II - Software EchoStar Corp

Principal Engineer I - Software EchoStar Corp

Associate Principal Engineer Southland Industries Inc.

Principal Embedded Linux Engineer HawkEye 360 Inc

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