Waltham, MA · On-site
$32/hr
Key Responsibilities ● Interpret and work from CAD models, engineering drawings, wiring schematics, and assembly instructions to build robotic prototypes and subsystems. ● Assemble mechanical ...
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Waltham, MA · On-site
$32/hr
Key Responsibilities ● Interpret and work from CAD models, engineering drawings, wiring schematics, and assembly instructions to build robotic prototypes and subsystems. ● Assemble mechanical ...
$155K - $200K/yr
Job Summary The Manager, Prototype Build is responsible for leading the prototype assembly function ... Act as the key interface between Prototype Operations, Hardware Engineering, Systems Engineering ...
$155K - $200K/yr
Job Summary The Manager, Prototype Build is responsible for leading the prototype assembly function ... Act as the key interface between Prototype Operations, Hardware Engineering, Systems Engineering ...
Waltham, MA · On-site
$155K - $200K/yr
Job Summary The Manager, Prototype Build is responsible for leading the prototype assembly function ... Act as the key interface between Prototype Operations, Hardware Engineering, Systems Engineering ...
Waltham, MA · On-site
$155K - $200K/yr
Job Summary The Manager, Prototype Build is responsible for leading the prototype assembly function ... Act as the key interface between Prototype Operations, Hardware Engineering, Systems Engineering ...
Bedford, MA · On-site
$38 - $47/hr
Build one-off engineering prototypes from drawings and instructions * Create and modify prototype wire/cable harnesses * Assemble small and large electromechanical subassemblies and full systems
New
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Bedford, MA · On-site
$38 - $47/hr
Build one-off engineering prototypes from drawings and instructions * Create and modify prototype wire/cable harnesses * Assemble small and large electromechanical subassemblies and full systems
New
Bedford, MA · On-site
$125K - $160K/yr
The Senior Mechatronics and Control Engineer will work directly as a member of the RAD research and ... prototype build, perception integration, motion planning, test, and iteration. * Translate ...
Bedford, MA · On-site
$125K - $160K/yr
The Senior Mechatronics and Control Engineer will work directly as a member of the RAD research and ... prototype build, perception integration, motion planning, test, and iteration. * Translate ...
The Senior Mechatronics and Control Engineer will work directly as a member of the RAD research and ... prototype build, perception integration, motion planning, test, and iteration. * Translate ...
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The Senior Mechatronics and Control Engineer will work directly as a member of the RAD research and ... prototype build, perception integration, motion planning, test, and iteration. * Translate ...
Build and test prototype, Write verification plan, perform verification/validation testing, Write verification report, Write specifications. * Execute ECR/ECO for design changes * Designing new ...
Build and test prototype, Write verification plan, perform verification/validation testing, Write verification report, Write specifications. * Execute ECR/ECO for design changes * Designing new ...
Bedford, MA · On-site
$79K - $100K/yr
Experience driving engineering deliverables through structured stage-gate processes, including requirements definition, concept evaluation, design freeze, prototype build, DFMEA/CFMEA, validation ...
Bedford, MA · On-site
$79K - $100K/yr
Experience driving engineering deliverables through structured stage-gate processes, including requirements definition, concept evaluation, design freeze, prototype build, DFMEA/CFMEA, validation ...
Bedford, MA · On-site
$80 - $100/hr
Experience driving engineering deliverables through structured stage‑gate processes, including requirements definition, concept evaluation, design freeze, prototype build, DFMEA/CFMEA, validation ...
Bedford, MA · On-site
$80 - $100/hr
Experience driving engineering deliverables through structured stage‑gate processes, including requirements definition, concept evaluation, design freeze, prototype build, DFMEA/CFMEA, validation ...
Job Title: Mechanical Engineer Location: Westborough MA, 01581 Duration: 12 months (Possible ... including concept, prototype build, test, documentation, supplier interfaces, manufacturing ...
Job Title: Mechanical Engineer Location: Westborough MA, 01581 Duration: 12 months (Possible ... including concept, prototype build, test, documentation, supplier interfaces, manufacturing ...
Boston, MA · On-site
$82K - $111K/yr
Prepare and maintain engineering documentation, including drawings, specifications, and test ... prototype build and testing, with a strong emphasis on practical, manufacturable solutions. Work is ...
Boston, MA · On-site
$82K - $111K/yr
Prepare and maintain engineering documentation, including drawings, specifications, and test ... prototype build and testing, with a strong emphasis on practical, manufacturable solutions. Work is ...
Job Opportunity - Mechanical Product Design Engineer Location : Boston, MA Duration : Full time ... prototype build and testing, with a strong emphasis on practical, manufacturable solutions. Work is ...
Job Opportunity - Mechanical Product Design Engineer Location : Boston, MA Duration : Full time ... prototype build and testing, with a strong emphasis on practical, manufacturable solutions. Work is ...
Somerville, MA · On-site
$80K - $100K/yr
In addition, the candidate will prototype, build, and conduct mechanical integrity and related ... Manage engineering personnel as necessary (e.g. junior engineers, technicians, co-ops) * Adhere to ...
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Somerville, MA · On-site
$80K - $100K/yr
In addition, the candidate will prototype, build, and conduct mechanical integrity and related ... Manage engineering personnel as necessary (e.g. junior engineers, technicians, co-ops) * Adhere to ...
Build What You Design: Fabricate and assemble your own prototypes and production hardware using ... Currently pursuing a BS in Mechanical Engineering or a related field; junior or senior standing ...
Build What You Design: Fabricate and assemble your own prototypes and production hardware using ... Currently pursuing a BS in Mechanical Engineering or a related field; junior or senior standing ...
Somerville, MA · On-site
$80K - $100K/yr
In addition, the candidate will prototype, build, and conduct mechanical integrity and related ... Manage engineering personnel as necessary (e.g. junior engineers, technicians, co-ops) * Adhere to ...
Quick apply
Somerville, MA · On-site
$80K - $100K/yr
In addition, the candidate will prototype, build, and conduct mechanical integrity and related ... Manage engineering personnel as necessary (e.g. junior engineers, technicians, co-ops) * Adhere to ...
The Battery Engineer / Senior Battery Engineer will join the product development team to drive cell ... prototype build through process optimization. * Experience with cylindrical and/or prismatic cell ...
The Battery Engineer / Senior Battery Engineer will join the product development team to drive cell ... prototype build through process optimization. * Experience with cylindrical and/or prismatic cell ...
This role will require something with a hands-on approach with significant past prototype build and mechanical assembly experience. * Collaborate across the multi-disciplinary team of engineers and ...
This role will require something with a hands-on approach with significant past prototype build and mechanical assembly experience. * Collaborate across the multi-disciplinary team of engineers and ...
Sudbury, MA · On-site
$132.40 - $251.60/hr
This role will require something with a hands‑on approach with significant past prototype build and mechanical assembly experience. * Collaborate across the multi-disciplinary team of engineers and ...
Sudbury, MA · On-site
$132.40 - $251.60/hr
This role will require something with a hands‑on approach with significant past prototype build and mechanical assembly experience. * Collaborate across the multi-disciplinary team of engineers and ...
This role will require something with a hands-on approach with significant past prototype build and mechanical assembly experience. * Collaborate across the multi-disciplinary team of engineers and ...
This role will require something with a hands-on approach with significant past prototype build and mechanical assembly experience. * Collaborate across the multi-disciplinary team of engineers and ...
This role will require something with a hands-on approach with significant past prototype build and mechanical assembly experience. * Collaborate across the multi-disciplinary team of engineers and ...
This role will require something with a hands-on approach with significant past prototype build and mechanical assembly experience. * Collaborate across the multi-disciplinary team of engineers and ...
| Aspect | Freelance Prototype Build Engineer | Mechanical Design Engineer |
|---|---|---|
| Credentials | Relevant technical skills, certifications in prototyping or manufacturing | Degree in Mechanical Engineering, CAD certifications |
| Work Environment | Freelance, project-based, often on-site or remote | Full-time, in-house or design firm offices |
| Industry Usage | Product startups, hardware companies, prototyping firms | Manufacturing, product design, engineering firms |
The Freelance Prototype Build Engineer focuses on creating physical prototypes for various projects, often working independently on short-term contracts. In contrast, Mechanical Design Engineers primarily develop detailed mechanical designs and specifications for products within a company or design team. While both roles require technical skills and engineering knowledge, the freelance prototype builder emphasizes hands-on prototyping, whereas the mechanical designer emphasizes design development and CAD work.
The most popular types of Prototype Build Engineer jobs in Massachusetts are:
For Freelance Prototype Build Engineer jobs in Massachusetts, the most frequently searched job titles are:
The top searched job categories for Freelance Prototype Build Engineer jobs in Massachusetts are:
Cities in Massachusetts with the most Freelance Prototype Build Engineer job openings:
$32/hr
Full-time
Medical, Dental, Vision, Life, Retirement, PTO
Posted 19 days ago
The Prototype Assembler (Contract) is responsible for assembling and refining pre-production robotic systems with a strong emphasis on engineering collaboration. Working from early-stage documentation, CAD models, wiring diagrams, and verbal direction, this role integrates mechanical, electrical, and control components into functional prototypes. Beyond assembly, this position plays an active role in Design for “x” (DFx) initiatives, providing real-time manufacturability, serviceability, and quality feedback to engineering teams. This collaboration ensures that designs are optimized for efficient, reliable, and cost-effective production before scaling to manufacturing.
Key Responsibilities
● Interpret and work from CAD models, engineering drawings, wiring schematics, and assembly instructions to build robotic prototypes and subsystems.
● Assemble mechanical frames, integrate wiring harnesses, and install sensors, actuators, and control systems.
● Partner closely with mechanical, electrical, and manufacturing engineers to evaluate designs for manufacturability, assembly efficiency, cost reduction, and serviceability (DFx).
● Provide actionable feedback to improve part fit, alignment, accessibility, wiring routing, and overall build processes.
● Perform rework, modifications, and functional testing to support rapid design iterations.
● Document assembly processes, tooling requirements, and recommended design changes for future builds.
● Conduct functional and performance tests to validate subsystem and system-level integration.
● Maintain compliance with safety protocols when working with mechanical, electrical, and pneumatic systems.
● Contribute to continuous improvement of prototype build processes and DFx review practices.
Core Competencies
● Execution – Delivers precise, functional assemblies on schedule, incorporating engineering feedback loops into the build process.
● Collaboration – Works as an extension of the engineering team, influencing design decisions through hands-on prototype assembly insights.
● Innovation – Proactively identifies and tests assembly process improvements, tooling options, and design refinements for DFx compliance.
● Adaptability – Rapidly adapts to evolving designs, emerging technologies, and shifting DFx priorities in a fast-paced robotics environment.
Knowledge, Skills & Abilities
● Proficiency in interpreting mechanical and electrical drawings, wiring diagrams, and CAD-based assembly instructions.
● Strong mechanical assembly, wiring, soldering, and electromechanical integration skills.
Knowledge of robotics components such as servos, gearboxes, actuators, embedded controllers, and cable management systems.
● Ability to analyze and communicate manufacturability and assembly considerations to engineering teams.
● Skilled in troubleshooting integration issues across mechanical, electrical, and control systems.
● Understanding of ESD safety, tolerance stack-ups, and ergonomic considerations in assembly.
● Familiarity with basic programming or test interfaces for hardware validation (preferred).
Typical Qualifications
● High school diploma or equivalent; technical certification or associate degree in mechatronics, robotics, or related field preferred.
● 3–5 years in prototype assembly, ideally with DFx or engineering collaboration experience in robotics or automation.
● IPC soldering certification, OSHA safety training, or robotics technician certification (preferred).
BlackTree Technical Group is a full-service staffing and recruitment firm. Our team consists of an experienced group of Senior Technical Recruiters and Account Managers with over 40 years of industry experience. Our firm prides itself on our technical knowledge, innovative sourcing strategies, and most importantly, a long-standing record of proven results for both clients and job-seekers.
Sourced by ZipRecruiter
Recruiting and staffing services
1 - 10 Employees
Woburn, MA, US
2013
