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Associate Mechanical Engineer Jobs in Rialto, CA

Mechanical Engineer

Riverside, CA · On-site

$90K - $110K/yr

The Mechanical Engineer will develop and maintain engineering drawings, CAD models, fixtures, and tooling while ensuring compliance with company standards and manufacturing requirements. The goal of ...

Mechanical Engineer

Corona, CA · Hybrid

$80K - $110K/yr

Mechanical Engineer Summary The Mechanical Engineer serves to focus on the design of mechanical systems for new facilities, additions, and renovation projects. This will require providing technical ...

Mechanical Engineer

Ontario, CA · On-site

$100K - $125K/yr

Bachelor's degree in Mechanical Engineering or a related technical discipline. * A strong foundation in Mechanical Engineering principles and Machine Design. * Direct experience utilizing Computer ...

Mechanical Engineer

Ontario, CA · On-site

$100K - $125K/yr

Bachelor's degree in Mechanical Engineering or a related technical discipline. * A strong foundation in Mechanical Engineering principles and Machine Design. * Direct experience utilizing Computer ...

Degree in Mechanical Engineering or a related engineering discipline. * Proficiency in Microsoft ... our associates and communities, along with competitive benefits and compensation.Our Purpose ...

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 ...

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 ...

Senior Mechanical Engineer

Orange, CA · On-site

$111K - $147K/yr

AECOM is seeking a Senior Mechanical Engineer based in Orange, California. This is a Hybrid position. Join our dynamic team supporting exciting projects! Work independently and make technical ...

Senior Mechanical Engineer

Orange, CA

$111K - $147K/yr

AECOM is seeking a Senior Mechanical Engineer based in Orange, California. This is a Hybrid position. Join our dynamic team supporting exciting projects! Work independently and make technical ...

Senior Mechanical Engineer

Orange, CA · On-site

$111K - $147K/yr

AECOM is seeking a Senior Mechanical Engineer based in Orange, California. This is a Hybrid position. Join our dynamic team supporting exciting projects! Work independently and make technical ...

Lead and coordinate cross‑functional engineering teams (internal and external), including mechanical, electrical, firmware, and test engineers. * Develop validation strategies, oversee testing, and ...

Sr. Mechanical Engineer

Pomona, CA · On-site

$121K - $148K/yr

The Sr. Mechanical Engineer will lead product sustainment efforts by implementing design improvements to enhance performance, reliability, and manufacturability. Provide technical support for ...

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Associate Mechanical Engineer information

See Rialto, CA salary details

$41.6K

$82.9K

$132.4K

How much do associate mechanical engineer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for associate mechanical engineer in Rialto, CA is $82,865.00, according to ZipRecruiter salary data. Most workers in this role earn between $65,700.00 and $95,300.00 per year, depending on experience, location, and employer.

What is an associate mechanical engineer?

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 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 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 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.

Is an associate in mechanical engineering worth it?

An associate degree in mechanical engineering can provide a foundation for entry-level roles such as technician or drafter, often requiring less time and cost than a bachelor's degree. However, for higher-level engineering positions and career advancement, a bachelor's degree is typically necessary, and additional certifications or experience can enhance job prospects and earning potential.

What kind of jobs can you get with an associate mechanical engineer?

An associate mechanical engineer can work in roles such as manufacturing technician, design assistant, quality control technician, or maintenance engineer. These positions often involve using CAD software, performing technical analysis, and supporting engineering projects in industrial, automotive, or HVAC environments.

What are the most commonly searched types of Mechanical Engineer jobs in Rialto, CA?

The most popular types of Mechanical Engineer jobs in Rialto, CA are:

What are popular job titles related to Associate Mechanical Engineer jobs in Rialto, CA?

For Associate Mechanical Engineer jobs in Rialto, CA, the most frequently searched job titles are:

What job categories do people searching Associate Mechanical Engineer jobs in Rialto, CA look for?

The top searched job categories for Associate Mechanical Engineer jobs in Rialto, CA are:

What cities near Rialto, CA are hiring for Associate Mechanical Engineer jobs?

Cities near Rialto, CA with the most Associate Mechanical Engineer job openings:

Infographic showing various Associate Mechanical Engineer job openings in Rialto, CA as of August 2026, with employment types broken down into 1% As Needed, 71% Full Time, 26% Part Time, 1% Temporary, and 1% Contract. Highlights an 96% Physical, 1% Hybrid, and 3% Remote job distribution, with an average salary of $82,865 per year, or $39.8 per hour.

Associate Mechanical Engineer - Buildings

WSP

Riverside, CA • On-site

$79K - $109K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 20 days ago


WSP rating

8.6

Company rating: 8.6 out of 10

Based on 69 frontline employees who took The Breakroom Quiz

17th of 72 rated business consultants


Job description

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 organization that meets our clients' objectives and solves their challenges.

At WSP, we are driven by inspiring the right people to be part of our future-focused business objectives. Our devotion to teamwork has allowed us to build communities and expand our skylines. Here at WSP, anything is within our reach and yours as a WSP employee. Come join us and help shape the future!

The Associate Mechanical Engineer will support the planning, design, and delivery of mechanical building systems for a variety of projects, including commercial, healthcare, higher education, life sciences, mission critical, mixed-use, and other building types. Working alongside experienced engineers and multidisciplinary teams, you will contribute to the development of HVAC, plumbing, and related building systems while gaining valuable professional experience and technical mentorship.

Your Impact

  • Assist with the design and analysis of mechanical building systems, including HVAC, hydronic, plumbing, and temperature control systems.
  • Support the preparation of engineering calculations, technical reports, specifications, and construction documents.
  • Utilize engineering software and tools to perform load calculations, energy analyses, and system layouts.
  • Develop and revise design drawings using Revit, AutoCAD, and other design platforms.
  • Participate in field investigations, site visits, and existing conditions assessments.
  • Assist with construction administration activities, including reviewing submittals, responding to RFIs, and conducting site observations.
  • Coordinate with architects, structural engineers, electrical engineers, contractors, and other project stakeholders.
  • Support project managers and senior engineers in meeting project schedules, budgets, and quality objectives.
  • Conduct research related to codes, standards, and emerging technologies applicable to mechanical building systems.
  • Contribute to the preparation of client presentations and project deliverables.
  • Exercise responsible and ethical decision-making regarding company funds, resources, and conduct, and adhere to WSP's Code of Conduct and related policies and procedures.
  • Perform additional responsibilities as required by business needs.

Who You Are

Required Qualifications

  • Bachelor's Degree in Mechanical Engineering, Architectural Engineering, or a closely related discipline.
  • 1 to 3 years of relevant experience in mechanical engineering or building systems design.
  • Engineer in Training (EIT) certification or ability to obtain within six months of hire.
  • Familiarity with HVAC, plumbing, and building systems design principles.
  • Working knowledge of mechanical engineering fundamentals and industry standards.
  • Experience with Revit, AutoCAD, and Microsoft Office applications.
  • Strong verbal and written communication skills.
  • Ability to work effectively in a collaborative, team-oriented environment.
  • Strong organizational skills and attention to detail.
  • Demonstrated ability to manage multiple priorities and meet deadlines.

Preferred Qualifications

  • Prior internship or co-op experience in consulting engineering or the built environment.
  • Exposure to healthcare, higher education, commercial, laboratory, life sciences, or mission critical projects.
  • Familiarity with engineering analysis software such as Trane Trace, HAP, or similar tools.
  • Knowledge of ASHRAE, NFPA, International Mechanical Code (IMC), and related industry standards.

WSP Benefits: 

WSP provides a comprehensive suite of benefits focused on a providing health and financial stability throughout the employee's career. These benefits include coverage related to medical, dental, vision, disability, and life; retirement savings; paid sick leave; paid vacation (or other personal time); paid parental leave; and paid time off for purposes of bereavement, voting, and/or attendance at naturalization proceedings. 

Compensation:

Expected Salary: $79,300 - $109,000

WSP USA is providing the compensation range that the company in good faith believes it might pay and/or offer for this position within the state of Colorado, based on the successful applicant's education, experience, knowledge, skills, and abilities in addition to internal equity and specific geographic location. WSP USA reserves the right to ultimately pay more or less than the posted range and offer additional benefits and other compensation, depending on circumstances not related to an applicant's sex or other status protected by local, state, and/or federal law.

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About WSP

WSP USA is the U.S. operating company of WSP, one of the world's leading engineering and professional services firms. Dedicated to serving local communities, we are engineers, planners, technical experts, strategic advisors and construction management professionals. WSP USA designs lasting solutions in the buildings, transportation, energy, water and environment markets. With more than 15,000 employees in over 300 offices across the U.S., we partner with our clients to help communities prosper.

www.wsp.com

WSP provides a flexible and agile workplace model while meeting client needs. Employees are also afforded a comprehensive suite of benefits including medical, dental, vision, disability, life, and retirement savings focused on providing health and financial stability throughout the employee's career.

At WSP, we want to give our employees the challenges they seek to grow their careers and knowledge base. Your daily contributions to your team will be essential in meeting client objectives, goals and challenges. Are you ready to get started?

WSP USA (and all of its U.S. companies) is an Equal Opportunity Employer Race/Age/Color/Religion/Sex/Sexual Orientation/Gender Identity/National Origin/Disability or Protected Veteran Status.

The selected candidate must be authorized to work in the United States.

NOTICE TO THIRD PARTY AGENCIES:

WSP does not accept unsolicited resumes from recruiters, employment agencies, or other staffing services. Unsolicited resumes include any resume or hiring document sent to WSP in the absence of a signed Service Agreement where WSP has expressly requested recruitment/staffing services specific to the position at hand.  Any unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of WSP and WSP will have the right to hire that candidate without reservation - no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service. 


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