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Freelance Prototype Build Engineer Jobs in Ohio (NOW HIRING)

Edenred Finland Oy

$81 - $104/hr

AI Enablement Engineer (all genders) full-time position in our Division Data & AI in Kleinostheim ... Prototype, build and continuously improve AI assistants, applications, prompts and lightweight ...

Jobgether

$104 - $150/hr

Build prototypes, experiment with technologies, and write code to develop a firsthand understanding ... Available to work full-time or on a freelance basis. Benefits * Fully remote position with ...

Edenred

$81 - $109/hr

AI Enablement Engineer (all genders) Full-time position in our Division Data & AI in Kleinostheim ... Prototype, build and continuously improve AI assistants, applications, prompts and lightweight ...

Edenred Italia S.r.l.

$75 - $104/hr

AI Enablement Engineer (all genders) full-time position in our Division Data & AI in Kleinostheim ... Prototype, build and continuously improve AI assistants, applications, prompts and lightweight ...

Uta

$81 - $104/hr

AI Enablement Engineer (all genders) full-time position in our Division Data & AI in Kleinostheim ... Prototype, build and continuously improve AI assistants, applications, prompts and lightweight ...

Ticket Servicos SA

$69 - $104/hr

AI Enablement Engineer (all genders) full-time position in our Division Data & AI in Kleinostheim ... Prototype, build and continuously improve AI assistants, applications, prompts and lightweight ...

The Will-Burt Company

ENGINEER ELECTRICAL SR

Orrville, OH · On-site

$100K - $131K/yr

The U.S. engineering organization consists of approximately 22 engineers, including two Senior ... Design, build, or oversee prototype hardware for qualification testing and customer evaluations

Mas Hvac

Electrical Engineer (51146)

Findlay, OH · On-site

$90 - $130/hr

Contributes to electrical design documentation, component selection support, BOM creation, prototype build support, and verification activities under guidance from senior engineers. Key ...

KYYBA

Be Seen First

Electrical Panel Assembler / Prototype Assembler

Twinsburg, OH · On-site

$17.50/hr

Client is hiring an experienced Electrical Panel Assembler / Prototype Assembler to build engineered-to-order electrical cabinets and prototype systems. The ideal candidate will have strong ...

New

voize GmbH

$83 - $124/hr

Your Mission As a Freelance Senior Android Engineer , you'll take ownership of building and ... Build features that genuinely make users' lives easier , taking them from idea to launch * Work ...

Procter & Gamble

UX/UI DesignerFlexible

Cincinnati, OH

... prototypes) for internal reviews. Ensures that graphics and programming aspects follow the tenets ... Successful candidates for freelancer opportunities will not be considered employees of The Procter ...

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Freelance Prototype Build Engineer information

What is the difference between Freelance Prototype Build Engineer vs Mechanical Design Engineer?

AspectFreelance Prototype Build EngineerMechanical Design Engineer
CredentialsRelevant technical skills, certifications in prototyping or manufacturingDegree in Mechanical Engineering, CAD certifications
Work EnvironmentFreelance, project-based, often on-site or remoteFull-time, in-house or design firm offices
Industry UsageProduct startups, hardware companies, prototyping firmsManufacturing, 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.

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Infographic showing various Freelance Prototype Build Engineer job openings in Ohio as of June 2026, with employment types broken down into 72% Full Time, 23% Part Time, and 5% Nights. Highlights an 73% Physical, 3% Hybrid, and 24% Remote job distribution.

R&D Product Development Electrical Engineer III

Ranpak

Concord Township, OH • On-site

Full-time

Re-posted 2 days ago

Ranpak rating

8.4

Company rating: 8.4 out of 10

Based on 7 frontline employees who took The Breakroom Quiz

17th of 121 rated packaging manufacturers

Job description

R amp;D Product Development Electrical Engineer III
Summary
Ranpak, industry leading innovator of sustainable, automated packaging solutions, is looking for a self-motivated, creative and talented electrical engineer interested in joining our growing R amp;D team. You will be an integral contributor to design and development of paper-based converting/packaging systems and related automated solutions. Responsibilities include design, development, and documentation associated with the project electrical systems. This includes the control system electronics hardware, electro-mechanical interfaces, compliance to machine specifications, and compliance to applicable electrical codes and standards. Must be able to solve machine/automation system control problems by applying knowledge of electrical engineering principles to accomplish technical challenges.
Essential Duties amp; Responsibilities
  • Works as a collaborative electrical engineering team member applying electrical engineering principles to develop design solutions for electromechanical machine control.
  • Design and layout automated equipment control systems then program, test, implement and / or manage PLC/HMI control systems and applications.
  • Good understanding of embedded controllers with experience designing PCB level electronics and writing embedded software (C, C++ languages).
  • Confirms electrical systems and component’s capabilities and quality by designing testing plans.
  • Prepares engineering reports, calculations and checks drawings for completeness and accuracy.
  • Interacts with vendors, suppliers, to select electrical components/subassemblies that comply with machine requirements and specifications.
  • Trouble shooting equipment as required in house and at customer facilities.
  • Develop operation manuals and other pertinent documentation.
  • Responsible for design concept and layout using Solid works Electrical and AutoCAD. Experience with product production documentation requirements.
  • Hands on support of prototype builds and release of new products to production launch.
  • Assists with the design, development, testing and reports for new product development (NPD) projects.
  • Participates in new design concept projects, customized products, quality improvements and cost reduction.
  • Able to lead and mentor less experienced EE team members.
Qualifications
  • Bachelor’s degree in Electrical Engineering or Electrical Engineering Technology or Controls/Mechatronics. Master’s degree a plus.
  • 10+ years of related electrical engineering experience
  • PLC programming experience is a must (Mitsubishi, Siemens, Allen-Bradley, Beckhoff, etc.)
  • Software programming for embedded control PCB hardware (C, C++, Structured text)
  • PCB design and layout experience at electronic component level. Altium software preferred.
  • Robotic integration experience is a plus.
  • Hands on knowledge and prototype build of electrical control systems, PCB build, electrical troubleshooting, and electrical design
  • Familiarity with design and application of various sensor technologies
  • Experience programing user interface technology, HMIs such as touch screen displays
  • Self-motivated, innovative, creative and exceptional product development team player
  • Strong communication and problem-solving skills
  • CAD and product documentation experience is required.
EOE STATEMENT We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, national origin, disability status, protected veteran status or any other characteristic protected by law.

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