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Entry Level Prototyping Engineer Jobs in Fullerton, CA

JOB SUMMARYThe Entry Level Electric Vehicle Engineer will be responsible for the design and release ... Research, develop and prototype new components for LSVs (Low Speed Vehicles) and industrial ...

The team focuses on both development (research, design, prototyping, testing) and operations ... We are recruiting across a wide range of experience levels from entry level engineers to senior and ...

This is an entry-level Mechanical Engineer position for an individual with educational experience ... Develop prototype hardware designs and coordinating fabrication * Perform hands on integration and ...

Electrical Engineer 1

Irvine, CA · On-site

$75K - $95K/yr

About the job Most entry-level EE jobs put you in a corner running the same test for a year. This ... prototype through pilot manufacturing to commercial-scale production. Communicate your results ...

Electrical Engineer 1

Irvine, CA · On-site

$75K - $95K/yr

About the job Most entry-level EE jobs put you in a corner running the same test for a year. This ... prototype through pilot manufacturing to commercial-scale production. Communicate your results ...

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Entry Level Prototyping Engineer information

See Fullerton, CA salary details

$31.3K

$72.4K

$123.1K

How much do entry level prototyping engineer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for entry level prototyping engineer in Fullerton, CA is $72,365.00, according to ZipRecruiter salary data. Most workers in this role earn between $53,700.00 and $81,900.00 per year, depending on experience, location, and employer.

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Infographic showing various Entry Level Prototyping Engineer job openings in Fullerton, CA as of June 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $72,365 per year, or $34.8 per hour.

Mechanical Engineer I, Prototype & Vehicle Systems

Stefanini, Inc

Cerritos, CA • On-site

$52 - $72/hr

Other

Posted 2 days ago

New


Job description

Job DetailsRenewable Energy

Mechanical Engineer I, Prototype & Vehicle Systems Cerritos,CA Posted:8/17/2026 Job Description Job ID#: 86835

Job Category: Renewable Energy

Position Type: Contract

Duration: 2-4 months

Shift: 1

Motive Workforce is seeking an entry-level Mechanical Engineer to support prototype development and vehicle integration for locomotive electrification programs. This hands‑on position connects mechanical design with prototype fabrication, testing, and shop‑floor execution.

Responsibilities
  • Design and revise mechanical layouts for cooling systems, radiators, fans, ducting, structural mounts, brackets, and auxiliary enclosures
  • Build, instrument, and test prototype hardware
  • Support bench testing and vehicle-level integration
  • Create and maintain CAD models and engineering drawings using SolidWorks, Creo, or NX
  • Perform fit checks, tolerance stack-ups, and GD&T reviews
  • Coordinate DFM and DFA reviews with fabrication and machine shop vendors
  • Investigate prototype and field failures, then support design corrections
  • Coordinate with electrical and controls engineers on high‑voltage component packaging, harness routing, and thermal clearances
  • Support rapid design iterations based on test results and project requirements
Qualifications
  • Bachelor's degree in Mechanical Engineering, Automotive Engineering, or a related discipline
  • Zero to two years of relevant engineering experience
  • Proficiency with SolidWorks, Creo, NX, or a comparable CAD platform
  • Working knowledge of mechanical drawings, tolerances, and GD&T
  • Familiarity with thermal management and basic structural analysis
  • Comfortable working in both engineering and shop environments
  • Able to support hands‑on prototype assembly, instrumentation, and testing
  • Strong communication and cross‑functional coordination skills
Preferred Experience
  • Automotive, motorsport, rail, or vehicle‑integration experience
  • Exposure to high‑voltage or electric vehicle systems
  • FEA experience
  • GD&T certification or formal training
  • Experience with 3D printing, sheet metal, machining, fixtures, or rapid prototyping

This position will begin as a project‑based contract and may convert to direct employment based on project demand, performance, and business needs.

Pay Rate: $45.00 per hour

Employment Type: Project‑Based Contract, Potential Contract‑to‑Hire

Start Date: ASAP

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