35 principal mechanical engineer jobs at 18 companies in Washington, DC
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Principal Mechanical Engineer
Sterling, Virginia, United States
OnsiteFull Time
9+ YOESenior mechanical engineer with 9+ years experience in aerospace/space hardware, ABET degree, CAD/FEA expertise, PDM experience, and cross-disciplinary collaboration.
SolidWorks, ANSYS Workbench, PDM
1mo
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Principal or Sr. Principal Mechanical Engineer
Annapolis, Maryland, United States
$99k-$185k/yr OnsiteFull Time
5+ YOEBS in Mechanical/Aerospace/Ocean Engineering (or equivalent STEM) with 5+ yrs (Principal) or 8+ yrs (Senior Principal) experience; US citizen able to obtain TS/SCI and pass polygraph; proficiency with engineering design/analysis/office tools; ability to work onsite in Annapolis.
Siemens NX, Teamcenter
1mo
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Principal Mechanical Engineer
El Segundo or Los Angeles or Washington or San Francisco or San Diego or Seattle or London
$170k-$240k/yr OnsiteFull Time
10+ YOEBachelor's in Mechanical Engineering, 10+ years mechanical design/integration for electronic hardware in aerospace/defense, strong CAD (SolidWorks), GD&T, FEA/thermal analysis experience, and ability to obtain U.S. security clearance.
SolidWorks, NASTRAN, ABAQUS, ANSYS, COMSOL, CFD
1w
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Principal Engineer - Mechanical
Reston, Virginia, United States
$160k-$231k/yr HybridFull Time
13+ YOEBachelor's in Mechanical Engineering, 13+ years engineering experience with 10+ years on combined cycle power plants; ability to develop P&IDs, perform sizing calculations, and apply ASME/HEI/CTI/HI codes.
1w
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Principal Mechanical Engineer
Laurel, Maryland, United States
$168k-$176k/yr OnsiteFull Time
10+ YOEBSME required, 10+ years mechanical engineering experience, SolidWorks and FEA proficiency, ASME Y14.100 drawing experience, DFMEA and prototype testing skills, strong communication and manufacturing knowledge.
SolidWorks, FEA, ASME Y14.100, DFMEA
3mo
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Principal Engineer, Mechanical
Atlanta or Annapolis or Montgomery or Austin or Granbury or Fort Worth or Wharton or Alexander City or Perryman or Harrisburg
$151k-$168k/yr RemoteFull Time
10+ YOEBachelor's in engineering with 10 years experience; strong expertise in combustion turbines or steam turbines; leadership or senior-level credentials preferred.
Gas Turbine Technology, Engineering Analysis Tools
5d
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Principal Mechanical Engineer (Engineer Mechanical 5) - 29786
Alexandria, Virginia, United States
$143k-$235k/yr OnsiteFull Time
15+ YOERequires 10–15 years of relevant experience depending on degree, active U.S. Secret clearance, mechanical CAD and design experience, manufacturing knowledge, hands-on assembly, and strong documentation skills.
Mechanical CAD, PowerPoint, Microsoft Visio, Adobe suite, Jetson, Arduino, RPi, Python, C++, Computational Fluid Dynamics (CFD), Finite Element Analysis (FEA), Signal analyzers, Software-Defined Radios (SDRs), Antennas, Amplifiers, Quality Management System (QMS)
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Principal Engineer
Beltsville, Maryland, United States
$140k-$190k/yr OnsiteFull Time
10+ YOE10+ years engineering experience, B.S. (required) in mechanical/electrical/mechatronics, strong hands-on hardware and automation experience, 3D CAD skills, prototype line and equipment build experience, ability to lead root-cause investigations and mentor engineers.
3D CAD
4d
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Principal Design Engineer
Chantilly or Herndon
$220k-$292k/yr OnsiteFull Time
20+ YOERequires 20+ years of mechanical and mechanism design, 10+ years designing spacecraft systems, 3-D CAD, prototyping, testing, leadership, and an engineering BS, MS, PhD, or equivalent experience. U.S. citizenship and Top Secret eligibility required.
3-D CAD, Oscilloscopes, power supplies, electronic loads, multimeters
2w
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Principal Solution Engineer
Tysons, Virginia, United States
HybridFull Time
15+ YOE15+ years applications/systems engineering experience, Bachelor's in Engineering required (EE preferred), cross-domain expertise (electrical, mechanical, software/EMS), ECM ownership, strong communication; able to work hybrid in Tysons 3 days/week.
EMS
3w
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Sr. / Principal Welding Process Engineer
Stevensville, Maryland, United States
$116k-$156k/yr OnsiteFull Time
10+ YOEBachelor's in welding/materials/mechanical engineering,10+ years welding process development in compliance-driven manufacturing, welding metallurgy expertise, procedure and welder qualification experience, AS9100/NADCAP knowledge.
2w
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Senior/Principal Airframe Stress Engineer
Manassas, Virginia, United States
$130k-$180k/yr OnsiteFull Time
8+ YOEBachelor's in aerospace/mechanical engineering, extensive airframe structural analysis experience, proficiency with FEMAP/Nastran and NX, FAA Part 23/25 certification experience, strong technical writing and problem-solving skills.
FEMAP, Nastran, NX
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Data Center BESS Principal Engineer
Arlington or Alpharetta or Houston
HybridFull Time
10+ YOESenior electrical/mechanical engineer with 10+ years in energy storage or electrical infrastructure, master's in electrical engineering required, PE preferred, proven track record closing complex B2B transactions, expertise in data center power, controls, modeling (PSCAD, EMT/RMS), and strong communication skills.
PSCAD, EMT/RMS
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Healthcare Principal
New York or Newark or Washington or New Jersey or Florida
$250k-$320k/yr HybridFull Time
20+ YOE20+ years experience in healthcare projects, Bachelor's in Mechanical or Electrical Engineering, PE license, proven work winning and client relationship leadership, project director/EOR experience, commercial acumen.
1mo
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Lead / Principal - Mechanism & Multi-Body Dynamics Engineer
Towson, Maryland, United States
$111k-$178k/yr HybridFull Time
5+ YOEMaster's or Ph.D. in engineering, 5+ years in mechanism analysis/MBD, strong MBD and FEA-MBD experience, scripting in Python/MATLAB, and knowledge of C#/C++.
MSC Adams, MotionSolve, Ansys Motion, RecurDyn, Simscape Multibody, ANSYS, LS-DYNA, NASTRAN, RADIOSS, ABAQUS, Adams/View, Adams-Simulink, FMI/FMU, Python, MATLAB, C#, C++
2w
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Principal Quality Engineer
Germantown, Maryland, United States
$121k-$155k/yr HybridFull Time
8+ YOEU.S. citizen with BS in Mechanical/Electrical Engineering or equivalent, 8+ years quality engineering experience, AS9100/CMMI familiarity, ASME/ANSI Y14.5, IPC and RF test knowledge, ERP/requirements tool and Minitab proficiency, ability to travel up to 10%.
ASME / ANSI Y14.5, Enterprise Resource Planning (ERP), Microsoft Office, Minitab, SAP, CostPoint, RF Test equipment
3w
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Principal Engineer, Advanced Thermal Modeling
Jessup, Maryland, United States
$108k-$185k/yr OnsiteFull Time
12+ YOE2+ MgmtBachelor's in mechanical/thermal field, ~12+ years thermal modeling experience, 2+ years leading technical teams, expertise in thermodynamics/heat transfer/fluid dynamics, experience with modeling, simulation, validation and communicating results.
MATLAB, EES, Python, C#, C++, VBA, Modelica/Dymola, EnergyPlus, CFD
3d
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Principal Aerospace Modeling & Simulation Engineer (TS/SCI)
Herndon, Virginia, United States
$165k-$242k/yr OnsiteFull Time
15+ YOEBachelor's degree in aerospace, mechanical, electrical engineering, mathematics, physics, or computer science; 15 years of relevant experience; U.S. citizenship; active TS/SCI clearance; Python and/or Excel experience preferred.
Python, Microsoft Excel
3w
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Healthcare Principal in New York, New York, United States
New York or Newark or Washington or Florida
$250k-$320k/yr HybridFull Time
20+ YOEMinimum 20 years healthcare project experience, Bachelor’s in Mechanical or Electrical Engineering, PE license required, proven work-winning, project leadership, EOR experience, commercial and contract expertise.
1mo
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Healthcare Principal in New York, New York, United States
New York or Newark or Washington or Florida
$250k-$320k/yr HybridFull Time
20+ YOE20+ years healthcare engineering experience, bachelor’s in mechanical or electrical engineering, PE license required, proven track record in business development, EOR and project leadership, strong commercial and client management skills.
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