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18 prototype engineer jobs at 15 companies in Connecticut

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Sensor Solutions Prototype Engineer Sr (Hartford, CT, US)
Hartford, Connecticut, United States
OnsiteFull Time
Munich Re
Munich ReFrankfurt Stock Exchange: MUV2: Global provider of reinsurance, insurance, and risk management solutions.
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
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Mechanical Engineer
West Hartford, Connecticut, United States
$100k-$130k/yr OnsiteFull Time
Colt's Manufacturing Company
Colt's Manufacturing Company: Designs and manufactures firearms for military and commercial markets.
3+ YOEBS in Engineering or equivalent experience; ~3+ years engineering experience preferred; knowledge of mechanics, manufacturing, materials, GD&T, measuring equipment; prototype testing, DFMAI, and product development for commercial and government sectors.
PTC CREO, Windchill, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Enventive Concept
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2mo
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Design Engineer Internship - Fall 2026
Bloomfield or Suffield
OnsiteInternship
LiquidPiston
LiquidPiston: Developing compact, high-efficiency rotary internal combustion engines.
0+ YOEPursuing mechanical engineering; strong SolidWorks; hands-on prototyping; problem-solving; US person preferred.
SolidWorks, CAD
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Electrical Engineer
Groton, Connecticut, United States
$100k-$110k/yr OnsiteFull Time
ORBIS Inc.
ORBIS Inc.: Engineering solutions for naval and defense programs.
5+ YOEMid-senior electrical engineer with 5-10 years' experience, BSEE, US citizenship, secret clearance, PCB/CCA design and fabrication, KiCAD/Gerber/CAD experience, prototyping and test procedure development.
KiCAD, Gerber, CAD
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R&D Mechanical Engineer
Wallingford, Connecticut, United States
$90k-$115k/yr OnsiteFull Time
Oetiker
Oetiker: Manufacturer of high-end connecting and clamping solutions.
3+ YOE3+ years R&D mechanical engineering experience, SolidWorks and 3D-CAD proficiency, hands-on prototyping and shop experience, FEA/DFSS analytical skills, Microsoft Office proficiency, BSc/MSc in Mechanical or Electrical Engineering, strong English communication.
3D-CAD, SolidWorks, 3D printers, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft Word, FEA, Design for Six Sigma
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Senior Mechanical Engineer (Tolland, US)
Tolland, Connecticut, United States
OnsiteFull Time
Lectra
LectraEuronext Paris: LSS: Sells manufacturing software and automated material cutting systems.
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
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R&D Engineer
Monroe, Connecticut, United States
$65k-$107k/yr OnsiteFull Time
Coherent
CoherentNYSE: COHR: Manufactures lasers, engineered materials, and optical networking components.
BS in Engineering or Science; AAS with relevant manufacturing/prototyping experience; knowledge of advanced materials and machining; CAD/CAM/CMM skills; on-site work; 5 days, 40 hrs/week; first shift.
MasterCAM, PC-DIMS, Calyspo, Creo, SolidWorks, SurfCam, GibbsCam, Agile, Oracle, Cumulus
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Staff Mechanical Engineer
Farmington, Connecticut, United States
$116k-$174k/yr OnsiteFull Time
Otis
OtisNYSE: OTIS: Manufactures, installs, and services elevators and escalators.
10+ YOEBS in Mechanical Engineering,10+ years mechanical design and product development experience, expertise in 3D CAD (Creo), PLM (Windchill/PDMLink), FEA, Microsoft Office, prototyping and testing,able to travel up to 15%,authorized to work in U.S. without sponsorship.
Creo, Windchill, PDMLink, Microsoft Office, FEA, PLM
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R&D Engineer - Machining
Monroe, Connecticut, United States
$74k-$121k/yr OnsiteFull Time
Coherent
CoherentNYSE: COHR: Manufactures lasers, engineered materials, and optical networking components.
4+ YOEBachelor's degree; 1-5 years in advanced machining; on-site prototyping experience; skilled with CAD/CAM/CAx tools.
MasterCAM, PC-DIMS, Calypso, Creo, SolidWorks, GibbsCam, SurfCam, Agile, Oracle, Cumulus
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Mechatronics Engineer - Product Innovation
Torrington, Connecticut, United States
OnsiteFull Time
Commercial Sewing
Commercial Sewing: Designs and manufactures custom protective covers and recreational accessories.
Degree in mechatronics, mechanical, electrical, robotics or related field; experience developing electromechanical products; CAD proficiency; strong hands-on problem-solving and prototype validation skills.
CAD
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Product Development Engineer - Mechatronics & Controls
Torrington, Connecticut, United States
OnsiteFull Time
Commercial Sewing
Commercial Sewing: Designs and manufactures custom protective covers and recreational accessories.
Degree in mechatronics/mechanical/electrical/robotics, experience with electromechanical product development, CAD and prototyping skills, hands-on testing and problem solving.
CAD
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Senior Product Engineer- Mechanical
Trumbull, Connecticut, United States
OnsiteFull Time
CooperSurgical
CooperSurgicalNasdaq: COO: Manufactures medical devices for fertility and women's health.
5+ YOEExpertise in SolidWorks and GD&T, medical device development with design control, DFM/DFSS, FEA/CFD preferred, statistical methods, hands-on prototyping, and demonstrated experience delivering medical device products (BS+5yrs or MS+3yrs).
SolidWorks, GD&T, Design for Manufacturing (DFM), Design for Six Sigma (DFSS), FEA, CFD
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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
Consumer Reports
Consumer Reports: Tests products and publishes ratings for consumer advocacy.
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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AI Agent Engineer
Stamford, Connecticut, United States
$140k-$180k/yr HybridFull Time
Valitana
Valitana: SaaS platform for institutional investment analytics and management.
3+ YOE3+ years software development experience with Python, hands-on LLM API experience (Anthropic/OpenAI), prompt/context engineering, multi-agent orchestration, security-first mindset, prototyping and production experience, and a bachelor's in a related field.
Python, Anthropic, OpenAI, C#, Angular, SQL Server, Markdown, MCP servers, LLM
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Staff Product Engineer- Mechanical
Trumbull, Connecticut, United States
OnsiteFull Time
CooperSurgical
CooperSurgicalNasdaq: COO: Manufactures medical devices for fertility and women's health.
8+ YOEBS with 8+ years (or MS with 5+ years) in medical device product development; mechanical/biomedical engineering experience; CAD (Creo/SolidWorks), GD&T, DFM, DFSS, FEA/CFD, lab prototyping, verification/validation and regulatory design control experience.
Creo, SolidWorks, GD&T, FEA, CFD
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Prototyping Manager, AIDC Core
New Haven, Connecticut, United States
$92k-$147k/yr OnsiteFull Time
Yale University
Yale University: Providing higher education and conducting advanced scientific research.
5+ YOEMaster's degree in a related discipline and five years of related experience; strong leadership in prototyping, mechanical and electronics integration, and research instrumentation.
Machining, Electronics, Prototyping tools, Fabrication techniques, Laboratory instrumentation
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Principal Product Technologist
United States or California or Connecticut or Maryland or Massachusetts or New Jersey or New York or Washington or District of Columbia or Colorado or Hawaii or Illinois or Maine or Minnesota or Nevada or Ohio or Rhode Island or Vermont or Virginia
$169k-$285k/yr RemoteFull Time
Zillow Group
Zillow GroupNasdaq: ZG: Operates a digital marketplace for buying, selling, and renting homes.
7+ YOE7+ years in software engineering or technical product development; experience designing AI-powered systems, prototyping, LLM orchestration/RAG patterns, instrumentation and metric frameworks; strong communication and cross-functional collaboration.
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Architect - Personal Insurance Cross-Domain Architecture
Hartford or Saint Paul
$127k-$209k/yr HybridFull Time
Travelers
TravelersNYSE: TRV: Provide property and casualty insurance for individuals and businesses.
4+ YOEBachelor's in computer science or related STEM and 4+ years architecture/software engineering experience; hands-on experience with cloud-native technologies, APIs, AI/ML, prototyping, roadmaps, and agile delivery; insurance tech preferred.
cloud-native technologies, APIs, AI/ML
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