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Mechanical Engineer Startup Jobs in California (NOW HIRING)

Mechanical Engineer

San Francisco, CA · On-site

$110K - $140K/yr

Series A startup based in San Francisco tackling one of the world's most pressing problems: trash ... As we scale, we're looking for a Mechanical Engineer to expand our hardware design bandwidth and ...

Mechanical Engineer

San Francisco, CA · On-site

$110K - $140K/yr

Series A startup based in San Francisco tackling one of the world's most pressing problems: trash ... As we scale, we're looking for a Mechanical Engineer to expand our hardware design bandwidth and ...

Mechanical Engineer 3

San Diego, CA · On-site

$125K - $175K/yr

This is a dynamic, hands-on role for a self-starter who thrives in a fluid startup environment. You ... A bachelor's degree in mechanical engineering, Physics, or a related field. * Minimum of 5 years of ...

The role We're looking for a strong, hands-on mechanical engineer to join our hardware team. You do ... Worked at a startup and/or been on deployments * Experience with robot integration, fixturing, or ...

Mechanical Engineer 3

San Diego, CA · On-site

$125K - $175K/yr

This is a dynamic, hands-on role for a self-starter who thrives in a fluid startup environment. You ... A bachelor's degree in mechanical engineering, Physics, or a related field. * Minimum of 5 years of ...

This is a dynamic, hands-on role for a self-starter who thrives in a fluid startup environment. You ... A bachelor's degree in mechanical engineering, Physics, or a related field. * Minimum of 5 years of ...

Role: The Mechanical team at Samara is seeking a mechanical engineer to support the design ... paced startup environment. Responsibilities: * Design, analyze, procure, assemble, and test ...

Role: The Mechanical team at Samara is seeking a mechanical engineer to support the design ... paced startup environment. Responsibilities: * Design, analyze, procure, assemble, and test ...

Aerospace Mechanical Engineer

Alameda, CA · On-site

$120K - $160K/yr

Mechanical Engineer - Design and Build Advanced Aerospace Hardware Alameda, California | On-site Opportunity Summary Join a venture-backed aerospace startup developing an advanced launch platform ...

Mechanical Engineer 2

San Diego, CA · On-site

$85K - $125K/yr

This is a dynamic, hands-on role for a self-starter who thrives in a fluid startup environment. You ... A bachelor's degree in mechanical engineering, Physics, or a related field and a minimum of 2 years ...

Mechanical Engineer 2

San Diego, CA · On-site

$85K - $125K/yr

This is a dynamic, hands-on role for a self-starter who thrives in a fluid startup environment. You ... A bachelor's degree in mechanical engineering, Physics, or a related field and a minimum of 2 years ...

Staff Mechanical Engineer

San Francisco, CA · On-site

$185K - $240K/yr

We're looking for someone who thrives in a fast-moving startup environment and brings deep ... Mentor engineers and raise the bar for mechanical design quality and rigor * Identify technical ...

This is a dynamic, hands-on role for a self-starter who thrives in a fluid startup environment. You ... A bachelor's degree in mechanical engineering, Physics, or a related field and a minimum of 2 years ...

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Showing results 1-20

Mechanical Engineer Startup information

See California salary details

$44.9K

$101.5K

$164.3K

How much do mechanical engineer startup jobs pay per year?

As of Aug 10, 2026, the average yearly pay for mechanical engineer startup in California is $101,531.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,400.00 and $124,800.00 per year, depending on experience, location, and employer.

What are the typical responsibilities of a mechanical engineer at a startup compared to a larger company?

Mechanical Engineers in startup settings often take on a broader range of responsibilities, including designing components, building prototypes, testing products, and sometimes managing supply chain or manufacturing partners. Unlike in larger companies where roles can be highly specialized, startup engineers frequently wear multiple hats and get involved in early-stage product development, troubleshooting, and even customer feedback loops. This hands-on, cross-disciplinary environment offers rapid learning opportunities and direct impact on product direction. Team sizes are typically smaller, leading to more collaboration across functions like electrical engineering, software, and business operations. If you enjoy working on diverse tasks and seeing your ideas quickly brought to life, a startup can be an exciting and rewarding environment.

What are the key skills and qualifications needed to thrive in the mechanical engineer startup position, and why are they important?

To thrive as a Mechanical Engineer in a startup environment, you need a solid background in mechanical design, prototyping, and problem-solving, typically supported by a degree in mechanical engineering. Familiarity with CAD software (such as SolidWorks or AutoCAD), rapid prototyping tools, and hands-on fabrication methods is highly valued, along with relevant certifications like EIT or FE. Strong soft skills such as adaptability, creative thinking, and excellent teamwork are crucial for navigating the fast-paced, resource-constrained startup culture. These abilities are essential for driving innovation, overcoming technical and logistical challenges, and contributing effectively in a dynamic, collaborative setting.

What is a mechanical engineer startup?

A Mechanical Engineer Startup job involves designing, prototyping, and testing mechanical systems or products in an early-stage company. Engineers in this role often wear multiple hats, working on product development, manufacturing processes, and even cost optimization. They collaborate closely with cross-functional teams, including software engineers, designers, and business leaders, to bring innovations to market. The fast-paced startup environment requires adaptability, problem-solving skills, and creativity.

What are the most commonly searched types of Mechanical Engineer Startup jobs in California? The most popular types of Mechanical Engineer Startup jobs in California are:
What job categories do people searching Mechanical Engineer Startup jobs in California look for? The top searched job categories for Mechanical Engineer Startup jobs in California are:
What cities in California are hiring for Mechanical Engineer Startup jobs? Cities in California with the most Mechanical Engineer Startup job openings:
Infographic showing various Mechanical Engineer Startup job openings in California as of August 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 100% In-person job distribution, with an average salary of $101,531 per year, or $48.8 per hour.

Mechanical Engineer - Structural Analysis & Hardware Development

Approach Venture

Los Angeles, CA

$100K - $140K/yr

Full-time

Re-posted 22 days ago


Job description

Mechanical Engineer - Structural Analysis & Hardware Development

Los Angeles, California | On-site


Opportunity Summary

We are seeking a Mechanical Engineer to support the design, analysis, testing, and development of advanced power generation hardware. This role offers broad exposure across mechanical design, structural analysis, hardware integration, manufacturing, and testing within a fast-moving startup environment. This is an excellent opportunity for an early-career engineer looking to take on meaningful ownership while working alongside experienced engineers developing complex physical systems.


About Us

We are a venture-backed engineering startup building advanced energy infrastructure through innovations in thermal systems, power conversion, and manufacturing. Our team values hands-on execution, technical curiosity, and engineers who enjoy solving difficult problems.


Job Duties

  • Design mechanical components, assemblies, and supporting hardware
  • Perform FEA and structural analyses to support design decisions
  • Create CAD models, engineering drawings, and manufacturing documentation
  • Support prototype fabrication, assembly, and integration activities
  • Participate in hardware testing and performance validation efforts
  • Assist with root cause investigations and design improvements
  • Collaborate closely with manufacturing, test, and systems engineering teams
  • Contribute across multiple engineering disciplines as needed


Qualifications

  • Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related discipline
  • 2+ years of mechanical design experience
  • Experience using CAD and FEA tools
  • Understanding of structural analysis and mechanical engineering fundamentals
  • Hands-on experience building, testing, or troubleshooting hardware
  • Strong communication and problem-solving skills


Preferred Experience

  • Formula SAE, Baja SAE, Hyperloop, Rocketry, or similar hands-on engineering program experience
  • Startup experience
  • Experience supporting aerospace, automotive, robotics, or energy hardware
  • Exposure to manufacturing processes and prototype development
  • Experience working in laboratory or test environments


Why Join Us

  • Meaningful early-stage equity ownership
  • Full benefits package
  • Opportunity to work directly with senior engineering leadership
  • Broad exposure across design, analysis, manufacturing, and testing
  • Accelerated technical growth and ownership
  • Hands-on hardware development environment
  • Opportunity to help build foundational technology from the ground up


Compensation Details

$100,000 - $140,000





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