30 prototype engineer jobs at 26 companies in Ware, MA
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Sensor Solutions Prototype Engineer Sr (Hartford, CT, US)
Hartford, Connecticut, United States
OnsiteFull Time
7+ YOE7+ years engineering experience; 3+ years field testing; 3+ years project management; IoT and sensor technology; engineering programming experience preferred; PE license preferred; Bachelor’s in Engineering; Masters preferred.
IoT, Sensor technology, Engineering software
2mo
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Design Engineer Internship - Fall 2026
Bloomfield or Suffield
OnsiteInternship
0+ YOEPursuing mechanical engineering; strong SolidWorks; hands-on prototyping; problem-solving; US person preferred.
SolidWorks, CAD
3w
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Mechanical Engineer
Southborough, Massachusetts, United States
$80k-$115k/yr OnsiteFull Time
0+ YOEBS/MS in mechanical engineering preferred,0–6 years experience,mechanical design,fixturing,prototyping,hands-on fabrication,CAD proficiency,ability to balance speed/precision/cost,some R&D or manufacturing experience.
CAD
2mo
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Mechanical Engineer II
Framingham or Mexico or Europe or Asia
$81k-$111k/yr OnsiteFull Time
3+ YOEBachelor's in mechanical engineering, 3-7 years' product development experience, strong mechanical design and materials knowledge, NX CAD experience, familiarity with SolidWorks and Windchill, prototype testing and manufacturing collaboration skills.
NX, SolidWorks, Windchill
1mo
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Manufacturing Engineer
New Brighton or St. Paul or Westford
$61k-$123k/yr OnsiteFull Time
3+ YOEBachelor's in electrical/electronic engineering (required), 3+ years PCB/layout and prototype experience, knowledge of FDA regulations, PC skills (spreadsheets/word/databases), Six-Sigma knowledge desirable, manufacturing/process validation experience, ability to travel ~25%.
Gage R&R, Cp, Cpk, SPC, Value Stream mapping, 5S, Visual Workplace, Quality Management Systems (QMS), Environmental Management Systems (EMS)
2w
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Hardware Engineer - PWA / PWB Design
Carlsbad or Marlborough
$105k-$165k/yr OnsiteFull Time
2+ YOE2+ years hardware engineering experience; bachelor’s in electrical engineering or equivalent; high-speed board design up to 10GbE; prototyping, DFM, test and supplier coordination; US citizenship and ability to obtain SECRET clearance.
Mentor Graphic DxDesigner, Expedition/Planner, Hyperlynx
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Sr. Robotics Mech Engineer, Velocity
Westborough, Massachusetts, United States
$137k-$186k/yr OnsiteFull Time
8+ YOEBachelor's degree in engineering,8+ years mechanical engineering experience,prototyping and scaling experience,design verification and test development,FEA/GD&T knowledge,3D CAD skills,and mentoring experience.
3D CAD, Geometric Dimensioning and Tolerancing (GD&T), Finite Element Analysis (FEA), SolidWorks, Ansys
2mo
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Senior Mechanical Engineer (Tolland, US)
Tolland, Connecticut, United States
OnsiteFull Time
5+ YOEBachelor's in Mechanical Engineering (or related), minimum 5 years mechanical engineering experience (R&D preferred), strong CAD proficiency (NX; Windchill/Creo a plus), experience with prototyping, testing, FMEA/DFA/DFM, and cross-functional collaboration.
NX, Windchill, Creo
1mo
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FPGA/Hardware Engineer (Hardware Engineer, Staff)
Marlborough, Massachusetts, United States
$130k-$170k/yr OnsiteFull Time
8+ YOEBachelor's in Electrical Engineering (8+ years experience); FPGA development (VHDL/Verilog), Altium, SPICE, Xilinx Zynq/Vivado, analog circuit design, prototype debugging, and ability to obtain DoD security clearance; US export/ITAR eligibility.
Altium, Git, SPICE, Xilinx Zynq, Vivado, VHDL, Verilog, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, oscilloscope, logic analyzer, power supply
4d
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Senior Engineer, Product Development Engineering
Franklin, Massachusetts, United States
$95k-$116k/yr OnsiteFull Time
5+ YOEBachelor's degree in mechanical engineering, 5+ years of experience, air filter design and HVAC knowledge, CAD, prototyping, vendor coordination, analytical testing, and cross-functional communication skills.
Computer-aided design (CAD), HVAC, Minitab, SolidWorks, CFD, FEA
1w
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Principal R&D Structural Engineer
Northborough, Massachusetts, United States
$111k-$177k/yr HybridFull Time
5+ YOEPE license required, advanced degree plus experience preferred, 5+ years structural engineering/building design, knowledge of codes (IRC/IBC/ASTM/NFPA), prototyping and prefabrication experience, 3D CAD/BIM skills, strong communication and project management.
SolidWorks, Fusion 360, Rhino, Revit, Cadwork, Vertex BD
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Sr. Mechanical Development Engineer
Littleton, Massachusetts, United States
$105k-$144k/yr OnsiteFull Time
7+ YOEBS/MS in Mechanical Engineering or equivalent, 7+ years developing mechanical components/assemblies for electro-mechanical systems, experience with liquid cooling/fluid systems, proficiency with SolidWorks/Creo/NX and GD&T (ASME Y14.5), prototyping and validation, materials and manufacturing knowledge.
SolidWorks, Creo, NX, GD&T, ASME Y14.5
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Engineer I, Test
East Longmeadow, Massachusetts, United States
$60k-$97k/yr OnsiteFull Time
1+ YOE1+ years relevant experience; hands-on testing and supplier qualification; experience with measurement/metallurgical/metrological devices; CAD experience (Catia preferred); able to create prototypes, test plans, and technical reports.
CAD, Catia
3w
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Electrical Design Engineer I
Westborough, Massachusetts, United States
$90k-$98k/yr HybridFull Time
2+ YOEDesign and develop DC-DC/AC-DC power conversion products; perform simulations, create schematics, support PCB/layout review, test prototypes, and resolve production issues.
PSPICE, Simplis, Microsoft Office, PADS, Altium
1w
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Senior Principal Mechanical Engineer Advanced Technologies Product Lead
Marlborough or Tewksbury or Portsmouth or Andover
$132k-$252k/yr OnsiteFull Time
10+ YOEU.S. citizen with active transferable Top Secret DoD clearance; STEM degree with typically 10+ years relevant experience; mechanical design and prototype build experience; electronic packaging and IRAD background; strong communication and project skills.
CREO(Pro/E), ANSYS Mechanical, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
2mo
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Senior Research Engineer - Experimental Engineering
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
Senior research engineer with deep full-stack software engineering experience, strong applied AI/ML knowledge, prototyping and R&D experience, Python/FastAPI and frontend (React/React Native) familiarity, and ability to lead experiments and mentor engineers.
AI, Machine Learning, Python, FastAPI, React, React Native, RAG
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Senior Mechanical Engineer
Milford, Massachusetts, United States
$107k-$178k/yr OnsiteFull Time
3+ YOEAdvanced degree or equivalent experience in mechanical engineering, experience designing precision mechanical and fluidic systems, prototype development, FEA/CFD analysis, 3D CAD (SolidWorks/NX), and strong cross-disciplinary communication.
SolidWorks, NX, FEA, CFD, C++, Python, MATLAB, LabVIEW
1w
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Principal R&D Structural Engineer
Northborough, Massachusetts, United States
$111k-$177k/yr HybridFull Time
5+ YOEPE license required; degree with significant experience (BSc+15/MSc+10/PhD+6); 5+ years structural engineering; experience with codes, prefabrication, prototyping, CAD/BIM; strong communication and project management.
SolidWorks, Fusion 360, Rhino, Revit, Cadwork, Vertex BD
3mo
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Productization Engineering Lead
Franklin, Massachusetts, United States
$125k-$150k/yr OnsiteFull Time
7+ YOEBachelor’s degree in Mechanical, Electrical, Industrial, or Systems Engineering; 7+ years in product development or manufacturing engineering; CAD experience; leadership; transition prototypes to high-volume production.
CAD
2w
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Mechanical Engineering Intern - Fall 2026
Devens, Massachusetts, United States
$24-$27/hr OnsiteInternship, Temporary
Currently enrolled in a mechanical engineering program; basic mechanical engineering knowledge; ability to design, build, and test prototype systems; teamwork and cross-collaboration; familiarity with CAD and manufacturing processes.
CAD
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