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Part Time Mechanical Engineer Jobs in Riverside, CA

Mechanical Engineer 3

Irvine, CA ยท On-site

$85K - $140K/yr

This is a full-time position or part-time leading to full-time position located in Irvine, CA ... Engineer mechanical and electro-mechanical systems to meet technical, environmental, and ...

This is a full-time position or part-time leading to full-time position located in Irvine, CA ... Engineer mechanical and electro-mechanical systems to meet technical, environmental, and ...

Mechanical Engineer 2

Irvine, CA ยท On-site

$85K - $140K/yr

Saratech is seeking a Mechanical Engineer II to carry out engineering assignments involving the ... This is a full-time position or part-time leading to full-time position located in Irvine, CA.

Saratech is seeking a Mechanical Engineer II to carry out engineering assignments involving the ... This is a full-time position or part-time leading to full-time position located in Irvine, CA.

Mechanical Engineer 1

Irvine, CA ยท On-site

$70K - $115K/yr

Saratech is seeking a Mechanical Engineer I to support the planning, design, and development of ... This is a full-time position or part-time leading to full-time position located in Irvine, CA.

S. citizen * Bachelor's degree--preferably in the field of civil, mechanical or electrical ... PART-TIME OPPORTUNITIES There are part-time roles as a Civil Engineer in the Navy. Serving ...

Naval/Mechanical Engineering * Electrical/Electronics Engineering * Space Systems Engineering ... PART-TIME OPPORTUNITIES There are part-time roles as an Engineering Duty Officer in the Navy.

Senior Civil Engineer

Irvine, CA ยท On-site

$126K - $189K/yr

... mechanical design elements associated with process piping systems, linear infrastructure, yard ... Regular full-time and part-time employees (working at least 20 hours per week) have access to ...

Design Solutions COE

Mission Viejo, CA ยท Remote

$70K - $100K/yr

Bachelor's or Master's degree in mechanical engineering, Aerospace Engineering, or related field ... All full-time and part-time employees will receive 40 sick hours per year or minimum sick time ...

Preparing architectural, mechanical, electrical and civil drawings * Designing grading and drainage ... Serving part-time as a Navy Reserve Sailor, your duties will be carried out during your scheduled ...

CAM Technical Manager

Mission Viejo, CA ยท Remote

$60 - $65/hr

The CTM needs to be a highly skilled engineering specialist with strong skills in mechanical ... All full-time and part-time employees will receive 40 sick hours per year or minimum sick time ...

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Showing results 1-20

Part Time Mechanical Engineer information

See Riverside, CA salary details

$47.5K

$107.3K

$173.7K

How much do part time mechanical engineer jobs pay per year?

As of Jun 7, 2026, the average yearly pay for part time mechanical engineer in Riverside, CA is $107,329.00, according to ZipRecruiter salary data. Most workers in this role earn between $85,000.00 and $132,000.00 per year, depending on experience, location, and employer.

What is the difference between Part Time Mechanical Engineer vs Mechanical Designer?

AspectPart Time Mechanical EngineerMechanical Designer
CredentialsBachelor's in Mechanical Engineering, possibly PE licenseBachelor's or higher in Mechanical Engineering or Design
Work EnvironmentManufacturing, product development, consultingCAD drafting, product design, prototyping
Employer UsageEngineering firms, manufacturing companiesDesign firms, R&D departments

Part Time Mechanical Engineers focus on applying engineering principles to develop and analyze mechanical systems, often working on projects requiring technical expertise. Mechanical Designers primarily create detailed drawings and models for manufacturing, emphasizing CAD skills. While both roles require mechanical engineering knowledge, the engineer's role is more analytical, whereas the designer's role centers on drafting and design documentation.

What does a part time mechanical engineer do?

A part time mechanical engineer typically works fewer hours than a full-time engineer, often on a flexible or reduced schedule. Their responsibilities may include designing, testing, and improving mechanical systems or components, conducting research, and collaborating with other engineers on projects. They may work in industries such as manufacturing, automotive, aerospace, or energy. Part time roles can be ideal for those seeking work-life balance, continuing education, or semi-retirement while still applying their engineering skills.

How does working part time as a mechanical engineer impact project involvement and collaboration with full-time team members?

Part time mechanical engineers typically focus on specific tasks or phases of a project, which means clear communication and efficient documentation are essential for seamless collaboration. You may be assigned to design reviews, prototyping, or troubleshooting, working closely with full-time colleagues who handle broader project management. While you might not always be present for every team meeting, most companies utilize digital tools and flexible scheduling to keep part-time staff integrated and informed. This structure allows you to make meaningful contributions while balancing other commitments.

What are the key skills and qualifications needed to thrive as a Part Time Mechanical Engineer, and why are they important?

To succeed as a Part Time Mechanical Engineer, you typically need a degree in mechanical engineering, strong problem-solving skills, and experience with engineering principles. Familiarity with CAD software, simulation tools, and industry-specific certifications like EIT or PE are commonly required. Effective communication, time management, and adaptability are important soft skills for balancing multiple projects and collaborating with teams. These competencies ensure that even in a part-time capacity, engineers deliver high-quality solutions and contribute effectively to organizational goals.

What Does a Part-Time Mechanical Engineer Do?

As a part-time mechanical engineer, you design and build mechanical systems that meet the requirements of a given project. You may use calculation techniques to determine the construction requirements of each device, coordinate with other engineers to design it, and use software to detail the engineering specifications. You typically support full-time engineers, particularly because companies who need new devices usually want them as soon as possible. Depending on the needs of the project, you may also travel to factories or work sites, discuss potential devices with customers, and give presentations. You often work through contracts, but you may work exclusively for an employer.

What are the most commonly searched types of Mechanical Engineer jobs in Riverside, CA? The most popular types of Mechanical Engineer jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Part Time Mechanical Engineer jobs? Cities near Riverside, CA with the most Part Time Mechanical Engineer job openings:
Infographic showing various Part Time Mechanical Engineer job openings in Riverside, CA as of May 2026, with employment types broken down into 1% As Needed, 59% Full Time, and 40% Part Time. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution, with an average salary of $107,329 per year, or $51.6 per hour.
Mechanical Engineer 3

Mechanical Engineer 3

Saratech

Irvine, CA โ€ข On-site

$85K - $140K/yr

Full-time, Part-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 11 days ago


Job description

About the Opportunity:

Saratech is seeking an experienced Senior Mechanical Engineer to support the design, analysis, development, testing, and troubleshooting of military refrigeration and thermal management systems. This role serves as a Project/Cognizant Engineer on medium-complexity programs and requires close coordination with multidisciplinary teams, customers, suppliers, and management. The ideal candidate brings strong thermal and mechanical expertise, hands-on hardware experience, and a background in military or aerospace systems. This is a full-time position or part-time leading to full-time position located in Irvine, CA.

Salary Range:

  • Pay Grade 50

Qualifications and Experience:

  • Bachelor of Science in Mechanical Engineering (BSME) from an accredited four-year college or university, or equivalent

  • Five to seven years of related engineering experience and/or training

  • Minimum of five years of experience designing and fabricating mechanical and electro-mechanical systems

  • Hands-on testing and hardware experience required

  • Strong knowledge of fluid dynamics and heat transfer

  • Proficiency with ANSI Y14.5 geometric dimensioning and tolerancing (GD&T)

  • Experience and training in the Military/Aerospace industry required

  • Strong written and verbal communication skills, including the ability to deliver effective technical presentations to customers


Duties and Responsibilities:

  • Design, analyze, develop, test, and troubleshoot military refrigeration and thermal management equipment
  • Engineer mechanical and electro-mechanical systems to meet technical, environmental, and performance requirements
  • Perform drawing checks and reviews for colleagues and other engineers as required
  • Serve as Project/Cognizant Engineer for projects of medium complexity
  • Coordinate engineering efforts across multiple departments and disciplines
  • Interface effectively with customers, suppliers, program management, and internal stakeholders
  • Ensure designs meet cost, schedule, and technical performance objectives
  • Support system integration, qualification testing, and problem resolution
  • Participate in technical reviews and present engineering results to customers and leadership

Skills and Abilities:

  • Master's degree in Mechanical Engineering
  • Experience in the development of thermal systems (strong plus)
  • Experience serving as a lead engineer
  • Familiarity with military specifications and environmental requirements
  • Knowledge of electrical circuits and control theory
  • Hands-on experience with:
  • Hydraulics
  • Mechanical feed systems
  • Linear controls
  • Basic electronics
  • Servo-mechanisms
  • General machine shop experience
  • Professional and/or technical certifications from accredited institutions
  • Strong organizational skills with the ability to prioritize tasks and work effectively under time constraints
  • Ability to meet cost, schedule, and technical performance requirements
  • Willingness to travel as required

Other Requirements:

  • Complies with all organizational policies and procedures
  • Maintains strict confidentiality of all customer and/or employee information to assure customer and/or employee rights are protected
  • Adheres to policies regarding notification of absence and PTO requests
  • Attends all mandatory management and staff meetings
  • Represents the organization in a respectful and professional manner
  • Attend and comply with annual health, safety, training, and education requirements
  • Adheres to dress code, appearance is neat and clean

Additional Information:

  • Physical demands:
    • The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
    • The ideal candidate must be able to complete all physical requirements of the job with or without a reasonable accommodation.
    • Must be able to remain in a stationary position 50% of the time. The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
    • Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine, and computer printer.
    • Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
  • Follow detailed complex directions, reason and problem solve.
  • The person will frequently communicate and converse with other staff. Must be able to exchange accurate information in these situations.
  • Company participates in E-Verify.
  • Company is committed to providing equal employment opportunity without regard to race, color, religion, sex, sexual orientation, national origin, age, disability, or any other protected status with respect to recruitment, hiring, promotion, and other terms and conditions of employment.
  • Nothing in this job description restricts management's right to assign or reassign duties and responsibilities to this job at any time;
  • This description reflects managements assignment of essential functions, it does not proscribe or restrict the tasks that may be assigned
  • This job description is subject to change at any time.

Benefits

Insurance: All full-time regular employees (and dependents) are eligible to get medical, dental, vision coverage. Employees also can buy up on benefits like FSA, HSA, Life insurance, long and short-term disability.

Comprehensive health care and wellness plans

Retirement Plan: All employees can enroll in the company's 401k with company matching.

Paid Time Off: All full-time regular exempt employees are eligible for our Discretionary Time Off vacation policy after 90 days from their start date, Discretionary Time Off plan is a non-accrual plan for employees. All full-time regular non-exempt employees are eligible for our Paid Time Off Plan policy after 90 days, Paid Time Off plan is an 3.33 hours accrual per pay period for employees.

Paid Time Off: All full-time regular exempt employees are eligible for our Discretionary Time Off vacation policy after 90 days from their start date, Discretionary Time Off plan is a non-accrual plan for employees. All full-time regular non-exempt employees are eligible for our Paid Time Off Plan policy after 90 days, Paid Time Off plan is an 3.33 hours accrual per pay period for employees.

Paid Holidays: All full-time employees will receive 8 paid holidays per year. Full-time non-exempt employees receive an extra floater holiday per year.

Paid Sick Time: All full-time and part-time employees will receive 40 sick hours per year or minimum sick time required by the state.

NOTE TO STAFFING AGENCIES AND RECRUITERS: Saratech does not accept unsolicited resumes from any external agency for the placement of any position. Unsolicited resumes submitted by agencies and received by Saratech will be considered the property of Saratech and may be contacted and engaged with directly by Saratech. Saratech will not pay a placement fee or any other fees to any third-party agency, firm, or recruiter who is not specifically retained with a signed fee agreement by Saratech Human Resources to conduct a candidate search. Please do not forward unsolicited resumes to our website or to any Saratech employee. Saratech will not be responsible for any fees associated with unsolicited resumes.

EQUAL EMPLOYMENT OPPORTUNITY NOTICE: Paydarfar Industries, Inc. dba Saratech is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, gender expression, national origin, disability, protected veteran status, or any other basis protected by applicable federal, state, or local law.

#HI


Subject to background check