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Temporary Prototype Build Engineer Jobs (NOW HIRING)

Amca

Mechanical Build Engineer

El Segundo, CA · On-site

$100K - $130K/yr

Today, we operate seven factories nationwide, including our advanced prototyping and testing ... The Mechanical Build Engineering role is responsible for owning the build procedures used to ...

Amca

Senior Build Engineer

El Segundo, CA · On-site

$111K - $152K/yr

Own prototyping and first builds of new hardware designs * Work with Design Engineering teams to ... Take full ownership of manufacturing and build of new product designs * Prototype new components ...

Amca

Senior Build Engineer

El Segundo, CA · On-site

$140K - $180K/yr

Since the 1990s, our ability to build new aviation and military systems and maintain the ones we ... Own prototyping and first builds of new hardware designs * Work with Design Engineering teams to ...

Versigent

AI Build Engineer Manager

Troy, MI · On-site

AI BUILD ENGINEER MANAGER Versigent designs and delivers the systems that move power through modern ... Rapid Prototyping & "Architecture as Code" * Engineering Scalable Reference Implementations * AI ...

Industrious Ventures

Senior Build Engineer

El Segundo, CA · On-site

$140 - $180/hr

Since the 1990s, our ability to build new aviation and military systems and maintain the ones we ... Own prototyping and first builds of new hardware designs * Work with Design Engineering teams to ...

Hermeus

Build Engineer - Propulsion

Los Angeles, CA · On-site

$91K - $187K/yr

Drive the transition from prototype to production for complex aerospace assemblies. * Ruthlessly ... Strong engineering first principles. * Bachelor's degree in mechanical, aerospace, manufacturing ...

Hermeus

Build Engineer - Propulsion

Los Angeles, CA · On-site

$91K - $187K/yr

Drive the transition from prototype to production for complex aerospace assemblies. * Ruthlessly ... Strong engineering first principles. * Bachelor's degree in mechanical, aerospace, manufacturing ...

GRAIL

Build Engineer - Bazel - #4770

Sunnyvale, CA · On-site

For more information, please visit grail.com GRAIL is seeking a Build Engineer to join our DevOps / ... prototype solutions, and accelerate tooling work. These responsibilities summarize the role ...

GRAIL

Build Engineer - Bazel - #4770

Menlo Park, CA · On-site

$136 - $180/hr

For more information, please visit grail.com GRAIL is seeking a Build Engineer to join our DevOps / ... prototype solutions, and accelerate tooling work. These responsibilities summarize the role ...

Hermeus

Build Engineer - Propulsion

Los Angeles, CA · On-site

$91K - $187K/yr

Drive the transition from prototype to production for complex aerospace assemblies. * Ruthlessly ... Strong engineering first principles. * Bachelor's degree in mechanical, aerospace, manufacturing ...

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Temporary Prototype Build Engineer information

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How much do temporary prototype build engineer jobs pay per hour?

As of Sep 4, 2026, the average hourly pay for temporary prototype build engineer in the United States is $36.48, according to ZipRecruiter salary data. Most workers in this role earn between $34.38 and $38.46 per hour, depending on experience, location, and employer.

What is the difference between Temporary Prototype Build Engineer vs Mechanical Prototype Technician?

AspectTemporary Prototype Build EngineerMechanical Prototype Technician
CredentialsRelevant engineering or technical certifications, degree preferredTechnical diploma or certification in mechanical technology
Work EnvironmentManufacturing labs, R&D facilities, production linesPrototype workshops, testing labs, manufacturing settings
Employer & IndustryAutomotive, aerospace, consumer electronics companiesProduct development, engineering firms, manufacturing companies
Common Search IntentDesigning, building, and testing prototypes in a temporary capacityAssembling and troubleshooting mechanical prototypes

The Temporary Prototype Build Engineer focuses on assembling and testing prototypes temporarily, often requiring engineering knowledge and certifications. In contrast, the Mechanical Prototype Technician specializes in hands-on mechanical assembly and troubleshooting. Both roles are essential in product development but differ mainly in scope, responsibilities, and required credentials.

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Temporary Prototype Build Engineer jobs near you
Infographic showing various Temporary Prototype Build Engineer job openings in the United States as of August 2026, with employment types broken down into 86% Full Time, and 14% Part Time. Highlights an 100% In-person job distribution, with an average salary of $75,868 per year, or $36.5 per hour.

Mechanical Build Engineer

Amca

El Segundo, CA • On-site

$100K - $130K/yr

Full-time

Re-posted 5 days ago

Job description

Amca is building America's new industrial base. Since the 1990s, our ability to build new aviation and military systems and maintain the ones we already have has eroded. Today, the gap between what the nation needs to produce and what it is capable of producing is the largest it has been in generations.
To help close that gap, Amca rapidly develops and manufactures new critical components and subsystems required to build and sustain the planes, military vehicles, and core infrastructure America needs. Today, we operate seven factories nationwide, including our advanced prototyping and testing headquarters in El Segundo, and deliver avionics, hydraulic, and electrical components for platforms such as the F-35, F-16, F/A-18, 737MAX, 787, A320neo, A321, Mk-48, and M1 Abrams.
Overview:
The Mechanical Build Engineering role is responsible for owning the build procedures used to develop qualification hardware, and iterate on the initial builds to ensure highly reliable production level builds at our factories once product maturity has been achieved. You will serve as the extreme owner for build process of the parts we design. Your days will consist of hands on R&D for new build methodologies and specifications, while also working closely with the design engineering team to ensure design for manufacturability of our new products.
Responsibilities:
  • Develop build methodology from industry standards and conduct cutting edge R&D to improve on our component manufacturing processes and unlock new methods
  • Oversee the assembly and manufacturing procedures for both new and existing hardware
  • Act as the extreme owner of DFM changes to part drawings. You will be empowered to make changes to the drawings as required to eliminate repeat failures
  • Conduct development campaigns for new manufacturing methods and write specifications on manufacturing best practices based on real world data for the design engineers to abide by
  • Trade purchasing commercial build/manufacturing capabilities off the shelf against designing and developing the capabilities in house
  • Act as the extreme owner for various manufacturing methods, you will be the ultimate source of information for design engineers on how machines work and how to best optimize parts for various methods
  • Ideate and implement tooling, enabling high-quality build of Amca hardware
  • Identify, plan, and execute capital equipment, machine, and layout upgrades to meet changing needs
  • Partner with engineering and production teams to generate ideas, designs, and improvements for current and next-generation vehicles
  • Assist design engineers in guiding new designs from concepts to qualified, production-capable aerospace components
  • Prototype new components at our in-house R&D lab. You will be expected to be intimately involved with any prototype development

Basic Qualifications:
  • Bachelor's or advanced degree in aerospace engineering, manufacturing engineering, materials engineering, mechanical engineering or engineering physics
  • 1+ years of engineering experience in manufacturing, design, test, or development (internship and project team experience is applicable)
  • Strong understanding of engineering first principles, specifically with regards to thermodynamics, fluid dynamics, and solid mechanics

Preferred Skills and Experience:
  • Strong interpersonal and collaborative skills, enthusiasm for problem solving, and desire to optimize modern aerospace production and design processes
  • 2+ years of professional experience in the field of aerospace/mechanical engineering
  • 2+ years of experience with GD&T concepts
  • Strong project management skills and effective communication of technical concepts across multi-disciplinary teams
  • Experience with the building and testing of fluid and/or electrical systems
  • Experience with the build and test of pneumatic, hydraulic, and structural assemblies
  • Experience with scientific computer science languages (Python, MATLAB, or similar)
  • Experience with Siemens NX or other similar CAD package
  • Experience with DFM improvement projects

Additional Requirements:
  • Travel to vendors and other Amca sites as needed
  • Able to work flexible hours and occasional weekend support as needed

Annual Salary Range
$100,000-$130,000 USD
This position requires use of information which is subject to the International Traffic in Arms Regulations (ITAR). All applicants must be U.S. persons within the meaning of ITAR. ITAR defines a US person as: any individual who is granted U.S. citizenship; or. any individual who is granted U.S. permanent residence ("Green Card" holder); or. any individual who is granted status as a "protected person" under 8 U.S.C 1324b(a)(3).
The Advanced Manufacturing Company of America prohibits discrimination or harassment based on the following categories: race, color, religion, religious creed (including religious dress and grooming practices), national origin, ancestry, citizenship, physical or mental disability, medical condition (including cancer and genetic characteristics), genetic information, marital status, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender, gender identity, gender expression, age (40 years and over), sexual orientation, veteran and/or military status, protected medical leaves (requesting or approved for leave under the Family and Medical Leave Act or the California Family Rights Act), domestic violence victim status, political affiliation, and any other status protected by state or federal law.

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