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Temporary Prototype Build Engineer Jobs in El Segundo, CA

Medium

Build Engineer - Propulsion

Los Angeles, CA · On-site

$90 - $180/hr

Drive the transition from prototype to production for complex aerospace assemblies. * Ruthlessly ... Design and implement full-stack build processes--factory layout, tooling, test flow, and vehicle ...

Hermeus

Tooling Engineer

Los Angeles, CA · On-site

$138K - $187K/yr

... art of rapid iterative prototyping to build the fastest aircraft in the world today. By ... A Tooling Build Engineer on the Manufacturing team is responsible for the design, development, and ...

Hermeus

Tooling Engineer

Los Angeles, CA

$138K - $187K/yr

... art of rapid iterative prototyping to build the fastest aircraft in the world today. By ... A Tooling Build Engineer on the Manufacturing team is responsible for the design, development, and ...

Hermeus

Tooling Engineer

Los Angeles, CA · On-site

$138K - $187K/yr

... art of rapid iterative prototyping to build the fastest aircraft in the world today. By ... A Tooling Build Engineer on the Manufacturing team is responsible for the design, development, and ...

Clutch Canada

Build Engineer - Propulsion

Los Angeles, CA · On-site

$80 - $120/hr

Drive the transition from prototype to production for complex aerospace assemblies. * Ruthlessly ... Design and implement full-stack build processes--factory layout, tooling, test flow, and vehicle ...

Freeform

Opto-Mechanical Build Engineer

Los Angeles, CA

$90K - $200K/yr

OPTO-MECHANICAL BUILD ENGINEER Freeform builds AI-native manufacturing systems that unify software ... Develop procedures for scaling in-house opto-mechanical build processes from prototype to volume ...

Freeform

Opto-Mechanical Build Engineer

Los Angeles, CA · On-site

$90K - $200K/yr

OPTO-MECHANICAL BUILD ENGINEER Freeform builds AI-native manufacturing systems that unify software ... Develop procedures for scaling in-house opto-mechanical build processes from prototype to volume ...

Freeform

Opto-Mechanical Build Engineer

Los Angeles, CA · On-site

$90K - $200K/yr

OPTO-MECHANICAL BUILD ENGINEER Freeform builds AI-native manufacturing systems that unify software ... Develop procedures for scaling in-house opto-mechanical build processes from prototype to volume ...

Observable Space

Prototype Engineer

Los Angeles, CA · On-site

$95K - $130K/yr

About the Role We are seeking a Prototype Engineer to join our Los Angeles-based state-of-the-art ... Build out a team of R&D specialists. * High-trust, flexible scheduling. * Direct impact on rapid ...

Relativity Space

Moonshot Engineer

Long Beach, CA

... deep-tech prototyping, and bold moonshot thinking. We're a small team of hands-on builders ... Moonshot Engineers will be wearing many different hats, from technical leadership, detailed design ...

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Showing results 21-40

All JobsPrototype Build Engineer JobsTemporary Prototype Build Engineer JobsTemporary Prototype Build Engineer Jobs in El Segundo, CA

Temporary Prototype Build Engineer information

See El Segundo, CA salary details

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

As of Aug 14, 2026, the average hourly pay for temporary prototype build engineer in El Segundo, CA is $38.85, according to ZipRecruiter salary data. Most workers in this role earn between $36.63 and $40.96 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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For Temporary Prototype Build Engineer jobs in El Segundo, CA, the most frequently searched job titles are:

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Temporary Prototype Build Engineer jobs near you

Build Engineer - Propulsion

Medium

Los Angeles, CA • On-site

$90 - $180/hr

Other

Posted 9 days ago

Job description

Hermeus is a high-speed aircraft manufacturer focused on the rapid design, build, and test of high-Mach and hypersonic aircraft for the national interest. Working directly with the Department of Defense, Hermeus delivers capabilities that will ensure that our nation, and our allies, maintain an asymmetric advantage over any and all potential adversaries.

This role sits at the intersection of engineering design, manufacturing, integration and test for flight vehicles. You'll be embedded with design and production teams, owning everything from hardware design, tooling, testing and flight readiness to process development and vehicle assembly. We are hiring entry-level through senior-level.

Responsibilities
  • Lead detailed project planning and drive hardware delivery on aggressive timelines.
  • Collaborate directly with high level design concepts turning them into detailed designs including final geometry, material selection and DFM.
  • Drive the transition from prototype to production for complex aerospace assemblies.
  • Ruthlessly question process complexity—delete parts, eliminate waste, simplify flow.
  • Design and implement full-stack build processes—factory layout, tooling, test flow, and vehicle integration.
  • Develop and run test procedures for flight hardware.
  • Serve as a force multiplier across production, test, and design teams.
Basic Qualifications
  • Strong engineering first principles.
  • Bachelor's degree in mechanical, aerospace, manufacturing, or related engineering field.
  • Hands‑on experience with physical hardware (internships, labs, project teams all count).
  • Proven ability to design, build, break, and iterate quickly.
  • Comfort with CAD, test equipment, hand tools.
  • Familiarity with manufacturing processes (machining, welding, forming, etc.) and GD&T fundamentals.
Preferred Skills and Experience
  • Designed and released flight hardware.
  • Familiarity with Siemens Teamcenter and NX.
  • Leadership experience on project teams or in mentorship roles.
  • You’ve built something that’s flown, broken, or both.
  • Experience standing up production lines or test infrastructure in a fast‑paced environment.
Additional Requirements
  • Must be available to work extended hours and/or weekends as needed to support critical milestones.
  • Must be willing to travel to test sites, other Hermeus offices, and partner locations as needed (up to 25% travel).

$90,000 - $180,000 a year

U.S. EXPORT CONTROL COMPLIANCE STATUS

The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.

EQUAL OPPORTUNITY

Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

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