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Temporary Prototype Build Engineer Jobs in California

Hadrian Automation, Inc

Build Engineer, Capabilities

Los Angeles, CA · On-site

$150K - $200K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Role We are seeking a Manufacturing (Build) Engineer to support both early-stage and customer ... Experience transitioning products from prototype to scalable volume manufacturing. * Background in ...

Physical Intelligence

Prototype Engineer

San Francisco, CA · On-site

$42 - $47.25/hr

We are a group of engineers, scientists, roboticists, and company builders developing foundation ... We're looking for a Prototype Engineer, an engineering generalist who sits at the intersection of ...

Hermeus

Spike Inlet Mechanisms Build Engineer

Los Angeles, CA · On-site

$91K - $187K/yr

  • Medical

  • Retirement

  • PTO

About The Role: The Spike Inlet Mechanism Build Engineer will be responsible for the build ... Experience working in prototype or early-stage hardware development environment. * Experience ...

Intuitive

Staff Software Build Engineer

Sunnyvale, CA · Remote

This role is for an experienced engineer who writes code, debugs real build failures, prototypes infrastructure, and scales systems through direct technical contribution. You will own core build ...

Freeform

Opto-Mechanical Build Engineer

Los Angeles, CA

$90K - $200K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

Ford Motor Company

Prototype Development Engineer

Long Beach, CA

$39 - $43.50/hr

  • Medical

  • Dental

  • Vision

  • Life

  • PTO

At Ford, you can build more than vehicles. Come build what matters. Ford's Electric Vehicles ... As a Prototype Development Engineer, you will be the bridge between conceptual design and physical ...

Medium

Spike Inlet Mechanisms Build Engineer

Los Angeles, CA · On-site

$91.80 - $187.45/hr

  • Medical

  • Retirement

  • PTO

The Spike Inlet Mechanism Build Engineer will be responsible for the build, integration, and test ... Experience working in prototype or early-stage hardware development environment. * Experience ...

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 ...

Ampa, Inc.

Sr. Prototype Engineer

San Diego, CA · On-site

$75K - $90K/yr

You'll work closely with engineering teams to build, troubleshoot, test, and improve early-stage ... Prototype Development & Testing: Build, troubleshoot, and iteratively test biomedical and ...

Etched

Prototype Engineering Lead

San Jose, CA · On-site

$2.0K/mo

  • Medical

  • Dental

  • Vision

Job Summary We are standing up an in-house prototyping division at our 80,000 square foot Milpitas ... build that capability with a strong process engineer * Experience with liquid-cooled systems ...

Etched

Prototype Engineering Lead

San Jose, CA · On-site

$2.0K/mo

  • Medical

  • Dental

  • Vision

Job Summary We are standing up an in-house prototyping division at our 80,000 square foot Milpitas ... build that capability with a strong process engineer * Experience with liquid-cooled systems ...

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 ...

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All JobsPrototype Build Engineer JobsTemporary Prototype Build Engineer JobsTemporary Prototype Build Engineer Jobs in California

Temporary Prototype Build Engineer information

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 the most commonly searched types of Prototype Build Engineer jobs in California?

The most popular types of Prototype Build Engineer jobs in California are:

What are popular job titles related to Temporary Prototype Build Engineer jobs in California?

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

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The top searched job categories for Temporary Prototype Build Engineer jobs in California are:

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Cities in California with the most Temporary Prototype Build Engineer job openings:

Temporary Prototype Build Engineer jobs near you

Build Engineer, Capabilities

Hadrian Automation, Inc

Los Angeles, CA • On-site

$150K - $200K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 24 days ago

Job description

Hadrian - Manufacturing the Future
Hadrian is building autonomous factories that help aerospace and defense companies manufacture rockets, satellites, jets, and ships up to 10x faster and up to 2x cheaper. By combining advanced software, robotics, and full-stack manufacturing, we are reinventing how America produces its most critical parts.
We're accelerating our mission with the launch of Factory 3 in Mesa, Arizona, a 290,000-square-foot facility creating 350 new jobs. We are expanding rapidly to support thousands of future hires, launching Hadrian Maritime to expand into naval production, and introducing a Factory-as-a-Service model that delivers complete systems instead of individual parts.
Hadrian is backed by leading investors including T. Rowe Price, Lux Capital, Founders Fund, and Andreessen Horowitz, our fast-growing team is united around reindustrializing American manufacturing for the 21st century and beyond.
The Role
We are seeking a Manufacturing (Build) Engineer to support both early-stage and customer-driven builds. This role is responsible for translating design and customer requirements into executable factory processes through hands-on build execution and rapid iteration. You will lead the development of highly automated work cells to support new manufacturing capabilities and production facilities. In this position, you will serve as the operational connector across the Special Projects team, building end-to-end systems and processes that are scalable, robust, and aligned with Hadrian's broader production objectives.
What You'll Do
  • Lead the design and development of first-generation manufacturing systems and automation tools from concept through deployment.
  • Collaborate with cross-functional teams, including design, production, supply chain, controls, software, and robotics, to implement strategic and process improvements.
  • Communicate proactively with design engineering teams to provide early feedback on manufacturability and support iterative product development cycles.
  • Apply DFM (Design for Manufacturability) principles at the product level to ensure ease of production, cost efficiency, and scalability.
  • Own and drive upgrades and autonomous system developments that support high-reliability production and rapid iteration.
  • Analyze and troubleshoot equipment to optimize uptime, output quality, and process efficiency.
  • Identify, define, and deploy automation opportunities using internal capabilities or external partnerships, guided by rigorous ROI and technical evaluations.

What We're Looking For
  • Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, Mechatronics, or a related field, or equivalent practical experience.
  • 5+ years of experience in manufacturing environments, particularly in systems engineering or automation deployment roles.
  • Proven ability to collaborate with design engineers on early-stage product development, including translating design intent into robust manufacturing solutions.
  • Strong DFM expertise with a track record of influencing design decisions to enhance manufacturability, reduce costs, and accelerate time-to-market.
  • Demonstrated ability to lead complex projects and drive cross-functional alignment in fast-paced, iterative settings.
  • Strong quantitative and analytical skills for data-driven problem solving and process improvement.
  • Excellent communication, documentation, and team-building skills, with a hands-on, solution-oriented mindset.

What Will Set You Apart
  • Experience transitioning products from prototype to scalable volume manufacturing.
  • Background in implementing automation and test systems into production workflows.
  • Proficiency in data tools such as Excel and SQL for manufacturing analytics and process control.
  • Experience managing or mentoring high-performing engineering teams with diverse technical backgrounds.
Benefits for Full-time Employees
  • Medical, dental, vision, and life insurance plans for employees
  • 401k
  • Relocation support may be provided for certain situations, based on business need.
  • Flexible vacation policy
  • Equity
ITAR Requirements
To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
Use of AI in hiring
Hadrian uses AI-assisted tools in our recruiting and hiring processes to help our team work more efficiently. This may include tools that help organize and analyze recruiting data, as well as an AI-powered notetaker that can record and transcribe interviews and help coordinate feedback. These tools support our team and are not used to make hiring decisions. All candidate evaluations and hiring decisions are performed by humans. If an interview will be recorded, you will be notified in advance and may opt out at any time with no impact on your candidacy. Candidate data processed through these tools is subject to the same protections described in our Privacy Policy.
Hadrian Is An Equal Opportunity Employer
It is the Company's policy to provide equal employment opportunity for all applicants and employees. The Company does not unlawfully discriminate on the basis of race inclusive of traits historically associated with race (including, but not limited to, hair texture and protective hairstyles, such as braids, locks and twists), color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, transgender status, national origin (including, in California, possession of a drivers license), ancestry, citizenship, age, physical or mental disability, height or weight, medical condition, family care status, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, exercise of reproductive rights, any other basis protected by local, state, or federal laws, or any combination of the above characteristics. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.

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