1mo
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Cell Build Technician, Prototype
Somerville, Massachusetts, United States
$31-$38/yr OnsiteFull Time
2+ YOE2+ years manufacturing experience with GMPs, proficiency with MES, experience with hand tools, able to lift up to 50 lbs and stand for extended periods, detail-oriented with strong communication skills.
MES
1w
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Prototyping Specialist
Waltham, Massachusetts, United States
$72k-$78k/yr OnsiteFull Time
3+ YOE3+ years in prototype or machine shop; CNC milling programming and operation, manual machining, additive manufacturing (FDM/SLA), reading engineering drawings and GD&T.
3-axis CNC, Mastercam, SolidWorks, Microsoft Office, FDM, SLA
1mo
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AI Researcher/Prototyping Engineer
Lexington, Massachusetts, United States
$145k-$220k/yr OnsiteFull Time
5+ YOEPhD in EE/CS or master's with 5+ years; deep ML/AI expertise (multimodal, LLMs, graph analytics, adversarial/assurance); prototype development, strong software engineering, publications, and ability to obtain/hold security clearance.
LangChain, Python, PyTorch, TensorFlow, Hugging Face, NumPy, pandas, SciPy, Git, conda, virtualenv
2w
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Mechanical Engineer
Somerville, Massachusetts, United States
$92k-$140k/yr OnsiteFull Time
Experience designing and prototyping electromechanical systems, 3D CAD (Solidworks/Onshape), manufacturing techniques (injection molding, sheet metal), prototyping shop skills, vendor collaboration, and strong communication.
Solidworks, Onshape, Python, PLM
1mo
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Staff Engineer, Catheter Systems
Boston or Somerville
OnsiteFull Time
7+ YOEBachelor's in Mechanical Engineering, 7+ years catheter R&D experience (neurovascular preferred), hands-on prototyping, SolidWorks/3D CAD, FDM/SLA prototyping, DFx and supplier management, device design documentation and risk assessment.
SolidWorks, 3D CAD, FDM, SLA
3mo
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Founding Sales Engineer
Boston or London or New York City
HybridFull Time
Hands-on technical seller leading enterprise deals; prototypes integrations; helps shape scalable presales.
Python, JavaScript, Demos, Prototyping
2mo
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Shop Assistant (1st Shift)
Contoocook, New Hampshire, United States
$18-$22/hr OnsiteFull Time
0+ YOEHigh school diploma or GED; entry-level; manufacturing experience a plus; sheet metal or prototyping preferred.
Orbital sander, Grinder, Hand tools
1w
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Product Designer
Boston, Massachusetts, United States
$100k-$130k/yr RemoteFull Time
Timely: AI-powered master scheduling platform for middle and high schools.
Experience in B2B SaaS product design, user research, prototyping, design systems, and collaboration with engineering and product teams.
Figma
2mo
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CT - 5084 Development Engineering Technician III
Westborough, Massachusetts, United States
$24-$40/hr OnsiteFull Time
Equipment setup, troubleshooting, assembly of electro-mechanical prototype equipment; maintenance and calibration compliance; support development testing and documentation.
Machine Shop Tools, Calibration Equipment
3d
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Mechanical Engineer, Robotics Technical Services Custom Tools
North Reading, Massachusetts, United States
$117k-$160k/yr OnsiteFull Time
3+ YOEBachelor's in mechanical engineering,3+ years mechanical engineering experience,prototyping and implementation experience;SolidWorks or Ansys knowledge preferred.
SolidWorks, Ansys
1mo
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Hardware Systems Engineer
Cambridge or San Francisco
$105k-$150k/yr OnsiteFull Time
3+ YOEHands-on electro-mechanical hardware engineer with electronics, embedded firmware, and system integration experience; capable of bringing prototypes to shipping.
MCAD, ECAD, Embedded Firmware, System Architecture, PCB Design, C/C++
1w
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CNC Process Engineer
Woburn, Massachusetts, United States
OnsiteFull Time
5+ YOEDevelop and optimize CNC processes, create and troubleshoot CNC programs, interpret drawings, and support prototyping in a machine shop environment.
Solidworks, MasterCam, Part Maker
2mo
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Mechanical Engineering Fall Co-Op
Cambridge, Massachusetts, United States
OnsiteFull Time
Fall 2026 Mechanical Engineering co-op; CAD experience; rapid prototyping; design problem solving; hands-on; willingness to learn.
Onshape, SolidWorks, 3D Printing, CNC, FEA
2mo
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Development Manufacturing Engineering Technician II
West Boylston, Massachusetts, United States
$29-$36/hr OnsiteFull Time
Coghlin Companies: Provides product development and contract manufacturing services for capital equipment.
5+ YOEAssist development engineers in prototyping, debugging, testing, and documenting client products; lead technician team; strong electromechanical skills; good communication.
MS Office (Excel, Outlook), MRP/ERP systems, Kinetic, Power tools, Metrology equipment
2mo
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AI Engineer
New York or Los Angeles or Boston or Jersey City or Houston
$115k-$130k/yr RemoteAll Commitments Available
Hands-on AI engineer with Python skills; experience building AI apps; internship/coursework/research or projects; ability to prototype and iterate quickly.
Python, API development, Backend services, Workflow automation, FastAPI/Flask, React/TypeScript, Docker, Testing (Python/TypeScript), LLM retrieval/search
1mo
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Designer (Fitchburg, MA, US, 01420)
Fitchburg, Massachusetts, United States
$73k-$104k/yr OnsiteFull Time
4+ YOEAssociate's degree (or equivalent) and 4+ years experience; U.S. citizenship required; experience with CAD, bills of material, prototype assembly/testing, and engineering documentation.
CAD
1d
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Principal Agent Engineer, Agentic AI Platform
Boston, Massachusetts, United States
$167k-$250k/yr HybridFull Time
Experience building and productionizing LLM-powered agents, integrating with APIs and enterprise systems, prototyping agent workflows, and applying secure responsible-AI practices.
3w
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Manager, Product Research
United States or Boston or Raleigh or New York City or Lisbon or Singapore or Argentina
$160k-$200k/yr RemoteFull Time
Technical leader in networking and information security with research and team leadership experience; proficiency in scripting, statistical experiments, prototyping, and strong communication and analytical skills.
3d
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Senior Human Factors Engineer
Wilmington, Massachusetts, United States
$115k-$140k/yr OnsiteFull Time
5+ YOEBachelor's degree and 5+ years HF/usability engineering for medical devices, regulatory standards knowledge, usability testing, prototyping, strong communication and teamwork.
Figma, Adobe XD, Sketch, Axure, SolidWorks CAD, Microsoft, Google
3w
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Product Insights & Consumer Experience Manager
West Chester or Boston
HybridFull Time
Experience translating customer feedback into product insights, partnering with cross-functional teams to influence prototypes, and creating dashboards to reduce returns and improve ratings.