ZipRecruiter

Log In

1

Temporary Prototype Build Engineer Jobs in El Segundo, CA

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 Corporation

Tooling Engineer

Los Angeles, CA · On-site

$138.55 - $187.45/hr

... 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 ...

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 ...

Relativity Space

Moonshot Engineer

Long Beach, CA · On-site

... 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 ...

previous pagenext page

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

$30

$38

$41

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 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.

What are popular job titles related to Temporary Prototype Build Engineer jobs in El Segundo, CA?

For Temporary Prototype Build Engineer jobs in El Segundo, CA, the most frequently searched job titles are:

What job categories do people searching Temporary Prototype Build Engineer jobs in El Segundo, CA look for?

The top searched job categories for Temporary Prototype Build Engineer jobs in El Segundo, CA are:

What cities near El Segundo, CA are hiring for Temporary Prototype Build Engineer jobs?

Cities near El Segundo, CA with the most Temporary Prototype Build Engineer job openings:

Temporary Prototype Build Engineer jobs near you
Infographic showing various Temporary Prototype Build Engineer job openings in El Segundo, CA as of August 2026, with employment types broken down into 84% Full Time, and 16% Part Time. Highlights an 100% In-person job distribution, with an average salary of $80,811 per year, or $38.9 per hour.

Tooling Engineer

Hermeus

Los Angeles, CA • On-site

$138K - $187K/yr

Full-time

Medical, Retirement, PTO

Re-posted 15 days ago

Job description

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.
About The Role:
A Tooling Build Engineer on the Manufacturing team is responsible for the design, development, and validation of innovative tooling, fixtures, and ground support equipment that enable the prototyping, integration, and testing of advanced structural assemblies. This role emphasizes creativity, rapid iteration, and collaboration with multidisciplinary teams to support early-stage research and development.
Responsibilities
  • Own the design, fabrication, and implementation of advanced tooling, fixtures, and integration aids to support R&D, prototype builds, and test campaigns.
  • Partner with structures, manufacturing, and test teams to define tooling requirements, integration flow, and process interfaces.
  • Collaborate across engineering disciplines and external vendors to deliver rapid, high-precision prototype tooling solutions.
  • Leverage advanced materials and manufacturing methods, including additive and composite fabrication, to enhance performance and efficiency.
  • Perform design validations, mechanical checks, and hands-on trials to qualify tooling for development and production use.
  • Drive continuous improvement by developing and implementing tooling upgrades that reduce build time, improve accuracy, and streamline operations.
  • Maintain documentation, configuration control, and safety standards across all tooling systems.
  • Coordinate schedule, priorities, and vendor relationships to ensure tooling deliverables align with critical R&D and integration milestones.
  • Act as a key interface between engineering and build teams to resolve integration challenges and sustain build velocity.

Requirements
  • 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
  • Hands-on experience with prototype fabrication methods including machining, additive manufacturing, composites, and rapid prototyping.
  • Proficiency in CAD software (e.g., CATIA, SolidWorks, NX) for tooling design and iteration.
  • Knowledge of GD&T and ability to interpret and apply engineering drawings to prototype development.
  • Familiarity with R&D environments and early-stage design-build-test cycles for high-performance aerospace systems.
  • Strong problem-solving skills, with the ability to experiment, adapt, and iterate quickly in ambiguous development settings.
  • Excellent communication skills with the ability to collaborate across engineering, prototype build, and test teams.
  • Knowledge of lean prototyping and continuous improvement principles in low-volume, experimental environments.

$138,550 - $187,450 a year
The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.
At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.
Benefits:
  • Health & Wellness: 100% employer-paid healthcare and pet insurance
  • Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses
  • Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees
  • Office Perks: Weekly paid office lunches and fully stocked breakrooms

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 by22 C.F.R. § 120.62or 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.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Apply