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Mechanical Engineer Co Jobs in Riverside, CA (NOW HIRING)

AECOM

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 ...

WSP

Associate Mechanical Engineer - Buildings

Riverside, CA · On-site

$79K - $109K/yr

The Associate Mechanical Engineer will support the planning, design, and delivery of mechanical ... Prior internship or co-op experience in consulting engineering or the built environment. * Exposure ...

AECOM

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 ...

AECOM

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 ...

Rivian

Sr. Chassis Steering - Mechanical Engineer

Irvine, CA · On-site

$112K - $148K/yr

As a Senior Mechanical Design & Release Engineer, you'll be instrumental in the product development ... co-develop robust engineering solutions to complex functional challenges. * Evaluate steering ...

Rivian

Sr. Chassis Steering - Mechanical Engineer

Irvine, CA · On-site

$112K - $148K/yr

As a Senior Mechanical Design & Release Engineer, you'll be instrumental in the product development ... co-develop robust engineering solutions to complex functional challenges. * Evaluate steering ...

Rivian

Sr. Chassis Steering - Mechanical Engineer

Irvine, CA · On-site

$112K - $148K/yr

As a Senior Mechanical Design & Release Engineer, you'll be instrumental in the product development ... co-develop robust engineering solutions to complex functional challenges. * Evaluate steering ...

Carpenter Co.

Pouring Line Engineer

Riverside, CA

$69K/yr

At Carpenter Co., we challenge our employees to learn from and inspire one another - all levels of ... S. in Chemical Engineering, Chemistry, or Mechanical Engineering. * Six months to one year of ...

Carpenter Co.

Pouring Line Engineer

Riverside, CA · On-site

$69K/yr

At Carpenter Co., we challenge our employees to learn from and inspire one another - all levels of ... S. in Chemical Engineering, Chemistry, or Mechanical Engineering. * Six months to one year of ...

Crane Company

Project Engineer

Jurupa Valley, CA · Hybrid

$81K - $110K/yr

Bachelor's degree in Engineering, Mechanical Engineering, or related field OR * 3-5+ years of ... About Crane Crane Co. is a diversified manufacturer of highly engineered industrial products.

Crane Company

Project Engineer

Jurupa Valley, CA · On-site

$81K - $110K/yr

Bachelor's degree in Engineering, Mechanical Engineering, or related field OR * 3-5+ years of ... About Crane Crane Co. is a diversified manufacturer of highly engineered industrial products.

Canopy A&D

Thermal Protection System Engineer

Irvine, CA · On-site

$120K - $180K/yr

General familiarity with hypersonic systems, ablation mechanics, and current industry ... Irvine CA or Littleton, CO Travel: Up to 25% Your actual level and base salary will be determined ...

Canopy A&D

Thermal Protection System Engineer

Irvine, CA · On-site

$120K - $180K/yr

General familiarity with hypersonic systems, ablation mechanics, and current industry ... Irvine CA or Littleton, CO Travel: Up to 25% Your actual level and base salary will be determined ...

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Showing results 1-20

All JobsMechanical Engineer Co JobsMechanical Engineer Co Jobs in Riverside, CA

Mechanical Engineer Co information

See Riverside, CA salary details

$47.5K

$107.3K

$173.7K

How much do mechanical engineer co jobs pay per year?

As of Aug 9, 2026, the average yearly pay for mechanical engineer co 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 Mechanical Engineer Co vs Mechanical Designer?

AspectMechanical Engineer CoMechanical Designer
Required CredentialsBachelor's in Mechanical Engineering, PE license (optional)Associate's or Bachelor's in Mechanical Design or related field
Work EnvironmentDesign, analysis, testing in engineering firms or manufacturingDrafting, CAD modeling in design departments
Employer & Industry UsageEngineering consulting, manufacturing, aerospaceProduct design, CAD firms, manufacturing

Mechanical Engineers Co focus on designing, analyzing, and testing mechanical systems, often requiring engineering credentials. Mechanical Designers primarily create detailed CAD models and drawings, typically with design-focused education. Both roles work in manufacturing and design environments but differ in scope and responsibilities.

What types of projects and responsibilities can a mechanical engineer co expect to handle during their typical workweek?

As a Mechanical Engineer Co., you can expect to work on a variety of projects that may include product design, prototyping, conducting simulations, and supporting testing processes. Your responsibilities often involve collaborating with senior engineers, drafting technical drawings, and participating in team meetings to solve engineering challenges. The role provides a mix of hands-on tasks and computer-aided design work, offering valuable exposure to different phases of the engineering development cycle. This experience not only enhances your technical skills but also helps you build strong teamwork and communication abilities, which are essential for career progression.

What does a mechanical engineer co do?

A Mechanical Engineer Co-op, or Cooperative Education student, works alongside professional engineers to gain practical experience while still in school. They assist in designing, testing, and improving mechanical systems, and may also help with drafting, research, and troubleshooting. This role provides hands-on exposure to real-world engineering challenges, allowing students to apply classroom knowledge to industry projects and develop valuable technical and teamwork skills.

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

To thrive as a Mechanical Engineer, you need a solid background in engineering principles, mathematics, and physics, typically supported by a bachelor's degree in mechanical engineering or a related field. Familiarity with CAD software (such as SolidWorks or AutoCAD), FEA analysis tools, and relevant industry certifications like EIT or PE is often required. Strong problem-solving skills, teamwork, and effective communication help you excel in multidisciplinary project environments. These skills and qualifications ensure you can design, analyze, and implement mechanical systems that meet safety, efficiency, and innovation standards.
What are popular job titles related to Mechanical Engineer Co jobs in Riverside, CA? For Mechanical Engineer Co jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Mechanical Engineer Co jobs in Riverside, CA look for? The top searched job categories for Mechanical Engineer Co jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Mechanical Engineer Co jobs? Cities near Riverside, CA with the most Mechanical Engineer Co job openings:
Mechanical Engineer Co jobs near you

Senior Mechanical Engineer

AECOM

Orange, CA • On-site

$111K - $147K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 6 days ago

AECOM rating

8.4

Company rating: 8.4 out of 10

Based on 66 frontline employees who took The Breakroom Quiz

8th of 80 rated construction

Job description

Company Description
Work with Us. Change the World.
At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world's most complex challenges and build legacies for future generations.
There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.
We're one global team driven by our common purpose to deliver a better world. Join us.
Job Description
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 decisions based on building code interpretation as well as company, client, and industry standard practices. Mentor and teach junior engineers. Grow your career with us in our Building+ Places group.
The Senior Mechanical Engineer will be responsible for the following but not limited to;
  • Design of heating, ventilation and air conditioning systems as well as plumbing systems for large projects federal government, commercial, and institutional facilities
  • Perform Construction Administration services, including review of shop drawings, RFI's and review of contractor proposed change orders
  • Evaluate feasibility of alternative design approaches in conjunction with senior team members
  • Perform site/field visits to ascertain existing conditions including equipment condition evaluations
  • Organize/plan projects to ensure quality controls and project criteria are met and within budget
  • Assist in preparing proposals and presenting to Clients
  • Assist with mentoring of junior staff within the Mechanical Department
  • Review and edit specifications
  • Interact and work with a diverse set of clients and subcontractors
  • Serves as lead engineer on mid - to large size projects.

Qualifications
Minimum Requirements
  • Bachelor's degree in Mechanical Engineering from an ABET accredited Mechanical Engineering Program
  • 8+ years of experience in mechanical design of HVAC and Plumbing systems or demonstrated equivalency of experience and/or education
  • Professional Engineer (PE)
  • This position requires U.S. citizenship due to federal contract/security requirements

Preferred Requirements
  • 10+ years of experience in mechanical design of HVAC and Plumbing systems
  • Experience using AutoCAD and Revit
  • Ability to interact with others on a multi-discipline team
  • Ability to work on multiple projects at once
  • Excellent communications skills with the ability to present designs to clients
  • Good time management skills, a strong work ethic and attention to detail
  • Proficient in Building Load Calculation and Energy Modeling
  • Proficient in the design of plumbing systems including sanitary, storm, and water distribution systems
  • Energy Modeling experience a plus
  • Cost estimating experience a plus
  • Experience with Design-Build and other Alternate Delivery practices a plus
  • Experience with Instrumentation and Controls design a plus
  • Excellent Communications Skills with the ability to present designs to clients
  • Additional Industry Certifications such as LEED AP, CxA or CEM
  • Federal experience; NAVFAC, USACE, VAMC, DOD or USAF experience preferred
  • Experience in the following markets:
    • Healthcare
    • Data Centers / Mission Critical
    • Higher Education
    • Corporate Commercial / Mixed Use
    • Science & Technology (Labs)

Additional Information
  • Sponsorship is not available for this position
  • U.S Citizenship required due to the nature of the work

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.
About AECOM
AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.
AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients' complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle - from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com.
What makes AECOM a great place to work
You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you'll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you've always envisioned. Here, you'll find a welcoming workplace built on respect, collaboration and community-where you have the freedom to grow in a world of opportunity.
As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.

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