17 prototype engineer jobs at 15 companies in Groton, CT

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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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Sr. Mechanical Engineer
Rumford, Rhode Island, United States
$150k-$185k/yr HybridFull Time
HavocAI
HavocAI: Develops autonomous surface vessels and collaborative maritime autonomy software.
6+ YOE6+ years mechanical engineering experience, SolidWorks proficiency, hands-on prototyping and testing, system integration experience, Bachelor's in Mechanical Engineering, U.S. citizenship and eligibility for Secret clearance.
SolidWorks, CAD
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Mechanical Engineer
Middletown, Rhode Island, United States
OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
2+ YOEB.S. in Mechanical Engineering, 2+ years experience, SolidWorks proficiency, US citizenship and ability to obtain SECRET clearance, experience with prototype assembly, GD&T, and test hardware.
SolidWorks
1mo
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Mechanical Engineer
North Kingstown, Rhode Island, United States
$120k-$150k/yr HybridFull Time
HavocAI
HavocAI: Develops autonomous surface vessels and collaborative maritime autonomy software.
4+ YOEBachelor's in Mechanical Engineering, 4+ years mechanical design and system integration, SolidWorks proficiency, hands-on prototyping and testing experience, familiarity with electrical integration, U.S. citizenship and eligibility for Secret clearance.
SolidWorks
5d
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Sr Mechanical Engineer
Minneapolis or Providence
HybridFull Time
Veranex
Veranex: Accelerates medical technology innovation from concept to commercialization.
3+ YOEBachelor's in Mechanical Engineering, 3+ years medical device development experience, CAD and prototyping proficiency, familiarity with FDA/QSR/ISO, strong communication and analytical skills.
3D CAD, 2D CAD
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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
1mo
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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
3w
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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
23h
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ELECTROMECHANICAL DESIGNER/ENGINEER
Newport or Middletown or Fall River
OnsiteFull Time
MIKEL
MIKEL: Provides undersea warfare technology and engineering services for defense.
5+ YOEAbility to design and document electromechanical systems, develop PCB and cable harness designs, build and test prototypes, obtain/maintain SECRET clearance, and use SolidWorks/OrCAD; minimum 5 years relevant experience.
SolidWorks, SolidWorks PDM, CircuitWorks, OrCAD
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Embedded Software Engineer
North Kingstown or Boston or Providence
$120k-$180k/yr HybridFull Time
HavocAI
HavocAI: Develops autonomous surface vessels and collaborative maritime autonomy software.
Bachelor's in EE/CS, proven embedded development on STM32 using C/C++ with RTOS (ChibiOS/FreeRTOS); CAN/RS485/ModBus experience; git, docker, Confluence, Jira; electronics and prototyping skills; US citizenship and eligible for Secret clearance.
STM32, C, C++, ChibiOS, FreeRTOS, RTOS, CAN, J1939, NMEA2000, DroneCAN, RS485, ModBus, git, docker, Confluence, Jira, PX4, ArduPilot, DDS, Hardware-in-the-loop (HIL)
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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
1mo
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RI Office: Exempt
North Kingstown, Rhode Island, United States
OnsiteFull Time
REGENT
REGENT: Builds electric seagliders for high-speed regional coastal travel.
Expertise in mechanism and actuation system design, advanced CAD (NX preferred), kinematic/dynamic/structural analysis (FEA), hands-on prototyping and testing, cross-functional collaboration, and mentoring engineers.
NX, FEA, GD&T, DFMA
2mo
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ENGINEERING TECHNICIAN V-GM
Newport, Rhode Island, United States
OnsiteFull Time
McLaughlin Research Corporation
McLaughlin Research Corporation: Engineering and technical services for defense agencies.
5+ YOE5+ years in electrical/electronic systems; senior hull sensors technician; hardware prototyping, integration, and documentation; fault analysis.
1mo
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Electronics Technician
Cranston, Rhode Island, United States
OnsiteFull Time
Taco Comfort Solutions
Taco Comfort Solutions: Manufactures high-efficiency heating, cooling, and plumbing systems.
Requires trade school education and an Electronics Technician certificate; proficiency with Microsoft Word/Excel and technical writing; will build and test prototypes, populate/solder PCBs, perform regulatory and validation testing, and travel occasionally.
Microsoft Word, Microsoft Excel, LabView, BenchVue, Stereolithography (SLA), oscilloscopes, logic analyzers, multimeters, power supplies, data acquisition systems
1mo
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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