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Associate Mechanical Engineer Jobs in Riverside, CA

Willdan Group, Inc.

Senior Mechanical Engineer

Walnut, CA · On-site

$108K - $143K/yr

The Senior Mechanical Engineer will be responsible for managing engineering staff, supporting business pursuits, overseeing design delivery within budget, and ensuring quality assurance/quality ...

Netlist

Thermal / Mechanical Engineer

Irvine, CA

$150K - $180K/yr

Thermal/Mechanical Engineer Reports To: Vice President, Systems Engineering Company Overview: Netlist Inc. (NASDAQ: NLST) is a leading provider of high-performance modular memory subsystems and next ...

Netlist

Thermal / Mechanical Engineer

Irvine, CA · On-site

$150K - $180K/yr

Thermal/Mechanical Engineer Reports To: Vice President, Systems Engineering Company Overview: Netlist Inc. (NASDAQ: NLST) is a leading provider of high-performance modular memory subsystems and next ...

Saratech, Inc.

Mechanical Engineer 3

Irvine, CA

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

Saratech

Mechanical Engineer 3

Irvine, CA · On-site

$85K - $140K/yr

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

Saratech

Mechanical Engineer 3

Irvine, CA · On-site

$85K - $140K/yr

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

Neon Aerospace

Mechanical Engineer

Irvine, CA · On-site

We're looking for a Mechanical Engineer to help design and integrate complex mechanical and electromechanical systems powering next-generation hardware-spanning positioning, propulsion, environmental ...

FieldAI

Mechanical Engineer-Federal

Irvine, CA

We're looking for a Mechanical Engineer to support system and component level design, integration, and validation for our wheeled robotic platforms across both federal and commercial programs.

FieldAI

Mechanical Engineer-Federal

Irvine, CA

$70K - $300K/yr

We're looking for a Mechanical Engineer to support system and component level design, integration, and validation for our wheeled robotic platforms across both federal and commercial programs.

WSP

Mechanical Engineer - Buildings

Riverside, CA · On-site

$88K - $126K/yr

This Opportunity WSP is currently initiating a search for a Mechanical Engineer for our Riverside, CA office. Be involved in projects with our Property & Buildings Team and be a part of a growing ...

WSP

Mechanical Engineer - Buildings

Riverside, CA · On-site

$88K - $126K/yr

This Opportunity WSP is currently initiating a search for a Mechanical Engineer for our Riverside, CA office. Be involved in projects with our Property & Buildings Team and be a part of a growing ...

Belcan

Mechanical Engineer II

Irvine, CA · On-site

$40.01 - $64.90/hr

Mechanical Engineer II Pay Rate: $40.01 - $64.9/hr. Location: Irvine, CA Area Code: 949, 714 ZIP Code: 92618 Start Date: Right Away Keywords: #MechanicalEngineer ; #IrvineJobs; Benefits: * Medical ...

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Showing results 1-20

All JobsAssociate Mechanical Engineer JobsAssociate Mechanical Engineer Jobs in Riverside, CA

Associate Mechanical Engineer information

See Riverside, CA salary details

$43.3K

$86.2K

$137.7K

How much do associate mechanical engineer jobs pay per year?

As of Jul 14, 2026, the average yearly pay for associate mechanical engineer in Riverside, CA is $86,212.00, according to ZipRecruiter salary data. Most workers in this role earn between $68,300.00 and $99,100.00 per year, depending on experience, location, and employer.

Can you make $200,000 a year as a mechanical engineer?

While most mechanical engineers earn less than $200,000 annually, those in senior roles, management, or specialized fields such as aerospace or energy can reach or exceed this level with extensive experience, advanced skills, and often in high-cost-of-living areas. Achieving this salary typically requires a combination of advanced degrees, professional certifications, and significant industry experience.

What engineer makes $500,000 a year?

While most associate mechanical engineers do not earn this level of salary, senior-level engineers with extensive experience, specialized skills, or leadership roles in high-paying industries such as aerospace, oil and gas, or technology can reach or exceed $500,000 annually. Achieving this often requires advanced certifications, a strong track record, and working in organizations with high compensation standards.

What engineers make $300,000 a year?

Senior engineers in specialized fields such as petroleum, aerospace, or software engineering can earn $300,000 or more annually, especially with extensive experience, advanced skills, and leadership roles. High compensation often involves working in high-demand industries, holding managerial or executive positions, or possessing rare technical expertise and certifications.

What is the difference between Associate Mechanical Engineer vs Mechanical Engineer?

AspectAssociate Mechanical EngineerMechanical Engineer
Required CredentialsBachelor's degree in Mechanical Engineering or related field; some roles may require internship experienceBachelor's degree in Mechanical Engineering; often requires licensure or professional certification for advanced roles
Work EnvironmentEntry-level positions in design, testing, or manufacturing departmentsDesign, analysis, and project management in various industries like automotive, aerospace, or HVAC
Employer & Industry UsageUsed by engineering firms, manufacturing companies, and government agencies for entry-level rolesCommonly employed across industries for mid-level engineering tasks and project execution

The main difference between an Associate Mechanical Engineer and a Mechanical Engineer lies in experience and responsibilities. Associate Mechanical Engineers are typically entry-level, focusing on supporting roles, while Mechanical Engineers handle more complex design and analysis tasks. Both roles require a bachelor's degree, but Mechanical Engineers often pursue licensure for career advancement.

What types of projects and responsibilities can an Associate Mechanical Engineer expect in their first year?

As an Associate Mechanical Engineer, you can anticipate working on a variety of projects such as assisting with the design and testing of mechanical components, creating CAD models, and supporting senior engineers during prototype development. You'll likely be involved in drafting technical documentation, performing basic calculations, and collaborating with cross-functional teams like manufacturing and quality assurance. This early experience provides valuable hands-on exposure to industry standards and project workflows, helping you build a strong technical foundation and develop professional skills essential for career advancement.

What are Associate Mechanical Engineers?

Associate Mechanical Engineers are entry-level professionals who assist in the design, development, testing, and maintenance of mechanical systems and products. They typically work under the supervision of senior engineers, contributing to projects such as machinery, HVAC systems, automotive components, or manufacturing equipment. Their responsibilities may include creating technical drawings, performing calculations, preparing reports, and supporting the engineering team throughout the project lifecycle. This role is often a starting point for mechanical engineering graduates seeking to gain practical experience and advance their careers.

What are the key skills and qualifications needed to thrive as an Associate Mechanical Engineer, and why are they important?

To thrive as an Associate Mechanical Engineer, you need a solid foundation in mechanical engineering principles, problem-solving, and a bachelor's degree in mechanical engineering or a related field. Familiarity with CAD software (such as SolidWorks or AutoCAD), engineering simulation tools, and knowledge of industry standards is typically required. Strong teamwork, communication skills, and attention to detail help you excel in collaborative projects and technical documentation. These competencies enable you to design, analyze, and implement effective mechanical solutions while ensuring safety, efficiency, and innovation in engineering environments.

What can I do with an Associate's degree in mechanical engineering?

An associate's degree in mechanical engineering prepares individuals for technician or assistant roles such as mechanical technician, manufacturing technician, or CAD drafter. These positions often involve supporting engineering projects, operating machinery, and using tools like AutoCAD or SolidWorks, with some roles requiring certification or on-the-job training.
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 are popular job titles related to Associate Mechanical Engineer jobs in Riverside, CA? For Associate Mechanical Engineer jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Associate Mechanical Engineer jobs in Riverside, CA look for? The top searched job categories for Associate Mechanical Engineer jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Associate Mechanical Engineer jobs? Cities near Riverside, CA with the most Associate Mechanical Engineer job openings:
Associate Mechanical Engineer jobs near you
Infographic showing various Associate Mechanical Engineer job openings in Riverside, CA as of July 2026, with employment types broken down into 49% Full Time, 13% Part Time, and 38% Contract. Highlights an 100% In-person job distribution, with an average salary of $86,212 per year, or $41.4 per hour.
Senior Mechanical Engineer

Senior Mechanical Engineer

Willdan Group, Inc.

Walnut, CA • On-site

$108K - $143K/yr

Other

Re-posted 2 days ago

Job description

Willdan Performance Engineering, a subsidiary of Willdan, is seeking a Senior Mechanical Engineer in Walnut, CA.

Summary

This position is critical to maintaining operational continuity, supporting organizational growth, and ensuring the delivery of high-quality engineering services that exceed client expectations. Having extensive practical experience in mechanical engineering is important to effectively provide day-to-day operational, technical, and project leadership. The Senior Mechanical Engineer will be responsible for managing engineering staff, supporting business pursuits, overseeing design delivery within budget, and ensuring quality assurance/quality control (QA/QC) standards are met across projects. The Senior Mechanical Engineer must be able to manage multiple priorities in a fast-paced environment and serve as the Mechanical Engineer of Record.

Essential Duties and Responsibilities

  • Manage daily operations of the WES Industrial Engineering Department.
  • Coordinate workloads, staffing assignments, and resource planning to support on-time project delivery.
  • Provide guidance, technical support, and mentorship to engineers and designers.
  • Perform project technical reviews to ensure compliance with applicable codes, standards, and client requirements.
  • Resolve complex technical challenges and design coordination issues.
  • Support troubleshooting and system optimization efforts.
  • Provide senior-level engineering oversight for mechanical, plumbing, and controls design projects.
  • Work with and manage a multi-disciplinary subconsultant team of electrical engineers, civil engineers, structural engineers, architects, and other disciplines as required for projects.
  • Perform site assessments (as needed) and coordinate with clients, contractors, and regulatory agencies.
  • Assist with construction administration support including RFIs, submittals, and field coordination.
  • Support staff development, training, and performance improvement initiatives.
  • Foster a collaborative and accountable team environment.
  • Enforce internal QA/QC procedures and technical standards.
  • Perform peer reviews and final design quality checks prior to issuance.
  • Maintain engineering standards, templates, and best practices.
  • Assist with project scope development, fee estimating, staffing plans, schedule development, and risk assessments.
  • Prepare technical narratives.
  • Support presentations and technical interviews as needed.
  • Must be proficient in AutoCAD / Revit / BIM platforms, Energy modeling and engineering analysis tools, and Microsoft Office Suite.

Job Requirements / Qualifications:

  • Bachelor's degree in mechanical engineering (master's degree is preferrable).
  • Active California Professional Engineer License (other States a plus) with no pending adverse actions.
  • Possess NCEES Record.
  • Demonstrated experience in consulting engineering and multidisciplinary project delivery.
  • Minimum of 10 to 15+ years of senior engineering design experience.
  • Experience with data centers and process cooling and heating systems controls or central plant systems, along with associated plumbing design.
  • Familiarity with QA/QC programs and technical standards implementation.
  • Prior leadership, mentoring, and supervisory experience.
  • Experience writing proposals and supporting business development efforts.
  • Travel may be required depending on project needs.
  • Essential Competencies
    • Design and Development
    • Strong Analytical Skills
    • Technical Leadership
    • Technical Documentation
    • Troubleshooting
    • Organization and Project Management
    • Communication
    • Interdisciplinary Collaboration
    • Client Liaison

EEO Non-Discrimination and ADA Reasonable Accommodation Statement
Willdan is an equal opportunity employer. Applicants are considered for all positions without regard to race, religious creed, color, age marital status, sex, sexual orientation, gender identity, gender expression, citizenship status, national origin, ancestry, religion, military service or veteran status, disability, medical condition, childbirth and related medical conditions, genetic testing, reproductive status or any other classification protected by federal, state or local laws and ordinances. Willdan does not discriminate on the basis of physical or mental disability where the essential functions of the job can be reasonably accommodated. Determinations on requests for reasonable accommodation will be made on a case-by-case basis. If you need reasonable accommodation for any part of the application and hiring process, please notify us.

Willdan Energy Solutions participates in E-Verify.

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