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Assistant Mechanical Engineering Jobs in California

Seasats

Mechanical Engineering Intern

San Diego, CA

$30/hr

Mechanical Engineering Intern Type: Internship (full-time, 40 hours/week) Location: San Diego, CA ... Update and maintain CAD models, drawings, and basic BOMs * Assist with fixtures, tooling, and jigs ...

Seasats

Mechanical Engineering Intern

San Diego, CA · On-site

$30/hr

Mechanical Engineering Intern Type: Internship (full-time, 40 hours/week) Location: San Diego, CA ... Update and maintain CAD models, drawings, and basic BOMs * Assist with fixtures, tooling, and jigs ...

DN LLC

Mechanical Engineering Technician

El Cajon, CA · On-site

$80K - $110K/yr

Equipment Maintenance Support * Assist the maintenance department in coordination with equipment ... Bachelors degree in Mechanical or Industrial Engineering. * Familiarity with hydraulic control ...

DN LLC

Mechanical Engineering Technician

El Cajon, CA · On-site

Equipment Maintenance Support * Assist the maintenance department in coordination with equipment ... Bachelors degree in Mechanical or Industrial Engineering. * Familiarity with hydraulic control ...

Solcoa Industries

Mechanical Engineering Intern

Alameda, CA · On-site

$21.25 - $28.50/hr

The Role - Mechanical Engineering Intern Join our hardware team and help turn designs into working ... You'll support reactor subsystem design in CAD, assist with prototype builds and testing, and keep ...

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Assistant Mechanical Engineering information

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$9

$27

$50

How much do assistant mechanical engineering jobs pay per hour?

As of Aug 26, 2026, the average hourly pay for assistant mechanical engineering in California is $27.92, according to ZipRecruiter salary data. Most workers in this role earn between $19.18 and $33.41 per hour, depending on experience, location, and employer.

What does an assistant mechanical engineer do?

An Assistant Mechanical Engineer supports senior engineers in designing, developing, and testing mechanical devices such as engines, machines, and tools. They often help prepare drawings, perform calculations, and oversee the installation or maintenance of equipment. Their responsibilities may also include troubleshooting technical issues, conducting research, and ensuring projects comply with safety and quality standards. This role is typically an entry-level position, providing valuable hands-on experience and training for further advancement in the field.

What are some common challenges faced by assistant mechanical engineers when transitioning from academic projects to real-world engineering work?

Assistant Mechanical Engineers often find that real-world engineering projects involve stricter deadlines, multidisciplinary collaboration, and more complex problem-solving than academic assignments. Adapting to industry-standard software, understanding manufacturing constraints, and effectively communicating with cross-functional teams are typical hurdles. However, most organizations provide mentorship and training to help new hires bridge the gap, and being proactive in seeking feedback and learning from experienced engineers can accelerate professional growth.

What are the key skills and qualifications needed to thrive as an assistant mechanical engineer, and why are they important?

To thrive as an Assistant Mechanical Engineer, you need a solid understanding of mechanical engineering principles, CAD design, and a bachelor's degree in mechanical engineering or a related field. Familiarity with industry-standard software such as AutoCAD, SolidWorks, and simulation tools, as well as knowledge of relevant codes and standards, is typically required. Strong problem-solving, teamwork, and communication skills help you collaborate effectively and adapt to project needs. These competencies are critical for ensuring accurate designs, efficient project execution, and successful integration within engineering teams.

What is the difference between Assistant Mechanical Engineering vs Mechanical Engineer?

AspectAssistant Mechanical EngineerMechanical Engineer
QualificationsBachelor's degree in Mechanical Engineering or related fieldBachelor's degree; often a Professional Engineer (PE) license is preferred
Work EnvironmentSupport roles in design, testing, and project assistanceLead design, analysis, and project management responsibilities
ResponsibilitiesAssist in developing plans, preparing reports, and supporting senior engineersDesign systems, oversee projects, and ensure compliance with standards

The main difference between an Assistant Mechanical Engineer and a Mechanical Engineer lies in their responsibilities and experience level. Assistant Mechanical Engineers typically support senior engineers with tasks like testing and documentation, while Mechanical Engineers take on more independent design and project leadership roles. Both roles require a similar educational background, but the Mechanical Engineer position often demands more experience and certifications.

How much does an assistant mechanical engineer make?

An assistant mechanical engineer typically earns between $50,000 and $70,000 annually, depending on experience, location, and industry. Entry-level positions may start lower, while experienced assistants with specialized skills can earn higher salaries. Certifications and proficiency with CAD software can also influence compensation.

What is an assistant mechanical engineer?

An assistant mechanical engineer supports senior engineers in designing, developing, and testing mechanical systems and components. They often perform tasks such as drafting, data analysis, and project coordination, typically requiring a bachelor's degree in mechanical engineering or a related field. This role may involve using CAD software and adhering to safety and industry standards.

What kind of jobs can you get with an associate's in mechanical engineering?

An associate's degree in mechanical engineering can qualify you for roles such as mechanical technician, manufacturing technician, or CAD drafter. These positions often involve assisting engineers, working with design software, and maintaining machinery in manufacturing or engineering environments.

What are the most commonly searched types of Mechanical Engineering jobs in California?

The most popular types of Mechanical Engineering jobs in California are:

What cities in California are hiring for Assistant Mechanical Engineering jobs?

Cities in California with the most Assistant Mechanical Engineering job openings:

Assistant Mechanical Engineering jobs near you
Infographic showing various Assistant Mechanical Engineering job openings in California as of August 2026, with employment types broken down into 94% Full Time, 3% Part Time, 2% Contract, and 1% Nights. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution, with an average salary of $58,072 per year, or $27.9 per hour.

Assistant Mechanical Engineer- Aviation & Federal (Brea)

Burns & McDonnell

Brea, CA • On-site

Full-time

Re-posted 25 days ago

Burns & McDonnell rating

8.7

Company rating: 8.7 out of 10

Based on 50 frontline employees who took The Breakroom Quiz

3rd of 80 rated construction

Job description

The Assistant Mechanical Engineer will work under the supervision of a licensed professional engineer to create world class designs for new projects, alterations and redevelopments on a variety of HVAC and plumbing projects primarily for aviation, government, and military facilities. The Assistant Mechanical Engineer will work with the project team throughout the design and construction process, adapting HVAC and plumbing plans according to budget constraints, design factors or client needs.

  • Assist in the HVAC and plumbing design of projects from the conceptual phase through design completion, covering various HVAC and plumbing systems: air-side/duct design, chilled and condenser water, heating hot water, steam, HVAC controls, domestic water, sanitary waste and vent and compressed gases.

  • Assist in HVAC load calculation and energy modeling calculations and life cycle cost analyses (LCCA) with IESVE or similar software (Trane Trace, Energy Pro, etc).

  • Utilizes computer programming (python, Excel VBA/macros) to further develop and contribute to design process efficiencies.

  • Assist in the development of production drawings for a variety of projects primarily focusing on aviation, government, and military facilities but also including power plants, industrial, life science, and commercial facilities.

  • Assists in the application of and develops a strong knowledge of federal design guidelines: Unified Facilities Criteria (UFC) and Unified Facilities Guide Specifications (UFGS).

  • Assists in the application of and develops a strong knowledge of commonly used HVAC and plumbing engineering/design concepts, principles, practices, codes, and procedures within the HVAC and plumbing engineering services industry: ASHRAE, ASPE, Title 24, IMC, and the IPC.

  • Assists in the design of HVAC and plumbing components for project needs and requirements that are set forth by the project managers.

  • Assist in the development of design documents in CAD software (Revit and AutoCAD).

  • Research and compile project related data as required by the project managers.

  • Assists in the compilation of information for client presentations, shop drawing review, and contract administration for design projects.

  • Assists in performing field inspections, measurements or calculations for public and private clients.

  • Performs other duties as assigned

  • Complies with all policies and standards

  • Bachelor's Degree in HVAC and plumbing Engineering or related degree from an ABET-accredited program or
  • Bachelor's Degree in HVAC and plumbing or related Engineering Technology from an ABET-accredited program and successful completion of the Fundamentals of Engineering (FE) exam required
  • Prior internship or related consulting experience preferred.
  • Basic knowledge in standard engineering techniques and procedures.
  • Excellent written and verbal communication skills.
  • Ability to work methodically and analytically in a quantitative problem-solving environment and demonstrated critical thinking skills.
  • Proficient in standard engineering techniques and procedures.
  • Basic computer skills (e.g. Microsoft Office Suite) in writing of design reports and design calculations.
  • Basic computer programming skills (python, Excel VBA/macros) in developing automated/efficient design calculations and processes.
  • Basic engineering computer skills include 3D modeling (autocad/revit preferred), energy modeling (IESVE and Trane Trace), and hydraulic analysis (AFT Fathom, Elite Ductsizer).
  • Strong attention to detail, facilitation, team building, collaboration, organization and problem-solving skills.
  • Engineers in Training (EIT) Certification preferred.
  • Minimum of a 3.0 GPA strongly preferred.
  • Involvement on campus or in the community preferred.
  • Candidates must be legally authorized to work permanently (i.e., without time limitations, without restrictions or without need for work sponsorship) in the country where this position is located.

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About Burns & McDonnell

Sourced by ZipRecruiter

Burns & McDonnell assists clients of all sizes and industries by providing extensive physical services ranging from assessments, integrated security solutions, and large security architecture designs. Services we typically provide include security and safety system design, threat, risk, and vulnerability assessments, security surveys, security master planning, compliance to federal security programs, independent validation and verification of integrated security system operations, management of installation and maintenance, and staff augmentation to develop and implement facility management and protection processes.

Industry

Civil engineering construction

Company size

10,000+ Employees

Headquarters location

Kansas City, MO, US

Year founded

1898

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