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Senior Mechanical Engineer Jobs in Riverside, CA

Rivian

Sr. Mechanical Engineer, Gearbox

Tustin, CA · On-site

$107K - $134K/yr

VDI 2736 accounting for shrinkage, thermal expansion, moisture absorption, and wear • Create detailed 3D models of plastic gears, gearboxes, shafts, etc. • Collaborate with electrical engineers ...

Rivian

Sr. Mechanical Engineer, Gearbox

Tustin, CA

$107K - $134K/yr

VDI 2736 accounting for shrinkage, thermal expansion, moisture absorption, and wear • Create detailed 3D models of plastic gears, gearboxes, shafts, etc. • Collaborate with electrical engineers ...

Rivian

Sr. Mechanical Engineer, Gearbox

Tustin, CA · On-site

$107K - $134K/yr

Collaborate with electrical engineers to integrate gear trains with angle sensors and other position-sensing components Coordinate injection-molded gear tooling, sampling, and validation efforts with ...

Sulzer AG

Mechanical Engineer, Sr.

Santa Ana, CA · On-site

$108K - $143K/yr

About the role Job Summary The (Mechanical) Engineering Expert is responsible for leading the design, development, and optimization of mechanical systems and components. This role provides expert ...

Sulzer AG

Mechanical Engineer, Sr.

Santa Ana, CA · On-site

$108K - $143K/yr

About the role Job Summary The (Mechanical) Engineering Expert is responsible for leading the design, development, and optimization of mechanical systems and components. This role provides expert ...

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All JobsMechanical Engineer JobsSenior Mechanical Engineer JobsSenior Mechanical Engineer Jobs in Riverside, CA

Senior Mechanical Engineer information

See Riverside, CA salary details

$77.7K

$127.9K

$178.4K

How much do senior mechanical engineer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for senior mechanical engineer in Riverside, CA is $127,867.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,000.00 and $144,000.00 per year, depending on experience, location, and employer.

What does a senior mechanical engineer do?

A senior mechanical engineer manages the research and manufacturing of mechanical devices and systems. Day to day responsibilities of a senior mechanical engineer include estimating manufacturing project costs and timelines, making recommendations on system efficiencies and safety, and performing general engineering duties such as the development and testing of machines. A senior mechanical engineer job is a leadership position and requires managerial experience and excellent communication skills.

What does a senior mechanical engineer do?

A Senior Mechanical Engineer is responsible for designing, developing, and overseeing the production of mechanical systems and devices. They lead engineering projects, solve complex technical problems, and may supervise junior engineers and other team members. Their work often involves using advanced software tools for modeling and analysis, ensuring compliance with industry standards, and communicating with clients and stakeholders. Senior Mechanical Engineers typically have several years of experience and play a key role in project planning and execution.

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

To thrive as a Senior Mechanical Engineer, you need a strong background in mechanical design, engineering analysis, and project management, usually supported by a bachelor's or master's degree in mechanical engineering and several years of industry experience. Proficiency with CAD software (such as SolidWorks or AutoCAD), FEA tools, and familiarity with relevant industry standards and certifications (like PE licensure) are typically required. Excellent problem-solving, leadership, and communication skills help you lead teams and collaborate effectively with cross-functional departments. These skills and qualifications are crucial for delivering innovative, reliable engineering solutions and successfully managing complex projects.

How does a senior mechanical engineer typically collaborate with cross-functional teams during a project?

As a Senior Mechanical Engineer, you’ll regularly work alongside professionals from disciplines such as electrical engineering, manufacturing, project management, and quality assurance. Effective collaboration involves participating in design reviews, aligning on technical requirements, and troubleshooting challenges that arise during development. You’ll often serve as a key technical liaison, ensuring that mechanical solutions integrate seamlessly with other systems and that project milestones are met on schedule. Strong communication and leadership skills are invaluable, as you’ll help guide both junior engineers and multidisciplinary teams toward shared goals.

What is the difference between Senior Mechanical Engineer vs Mechanical Designer?

AspectSenior Mechanical EngineerMechanical Designer
Required CredentialsBachelor's or Master's in Mechanical Engineering, Professional Engineer (PE) license often preferredAssociate's or Bachelor's in Mechanical Engineering or related field, certifications vary
Work EnvironmentDesign, analysis, project management, often in engineering firms or manufacturingDrafting, CAD modeling, product development, typically in design departments
Employer & Industry UsageEngineering firms, manufacturing, aerospace, automotiveProduct design companies, manufacturing, engineering consultancies

While both roles involve mechanical design, Senior Mechanical Engineers focus on project oversight, analysis, and technical leadership, whereas Mechanical Designers primarily handle CAD modeling and drafting tasks. The senior role requires more advanced credentials and experience, often with broader responsibilities in project management and engineering decisions.

How much do senior mechanical engineers get paid?

Senior mechanical engineers typically earn a median annual salary ranging from $85,000 to $130,000, depending on experience, location, and industry. They often have specialized skills in CAD software, project management, and engineering design, which can influence compensation levels.
More about Senior Mechanical Engineer jobs

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 Senior Mechanical Engineer jobs in Riverside, CA?

For Senior Mechanical Engineer jobs in Riverside, CA, the most frequently searched job titles are:

What job categories do people searching Senior Mechanical Engineer jobs in Riverside, CA look for?

The top searched job categories for Senior Mechanical Engineer jobs in Riverside, CA are:

What cities near Riverside, CA are hiring for Senior Mechanical Engineer jobs?

Cities near Riverside, CA with the most Senior Mechanical Engineer job openings:

Senior Mechanical Engineer jobs near you
Infographic showing various Senior Mechanical Engineer job openings in Riverside, CA as of August 2026, with employment types broken down into 84% Full Time, 13% Part Time, 1% Contract, and 2% Nights. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution, with an average salary of $127,867 per year, or $61.5 per hour.

Senior Mechanical Engineering Designer

Core States Group

Ontario, CA • On-site

$40 - $58/hr

Full-time

Medical, Life, Retirement, PTO

Re-posted 25 days ago

Job description

At Core States Group, the work you do matters to the clients we serve, the communities we support, and the teams who rely on one another to deliver with excellence. Our Cause is powerful: to create a world where all environments improve everyday life.


This role is paid on an hourly basis with a range of $40-$58 and is eligible for overtime in accordance with applicable laws. The expected approximate annualized compensation range is $85,000–$120,000.


Why Professionals Choose Core States Group

Here's what you can expect:

  • COMPENSATION – Competitive wages and bonus programs
  • RETIREMENT – We offer a great 401(k) match to help you invest in your future and grow your retirement savings with confidence.
  • HEALTHCARE – Excellent health benefits, life insurance options, and supplemental benefit options, giving you the flexibility to choose the coverage that best fits your needs and lifestyle. 
  • VACATION – Generous PTO time to help you recharge, relax, and maintain a healthy work-life balance.
  • PERKS – Team wellness challenges, Costco membership reimbursement, half-day Fridays during summer months + much more!
  • WORK-LIFE BALANCE – A flexible work environment that supports a healthy work-life balance, whether you’re in the office, working remotely, or somewhere in between.
  • PAID PARENTAL LEAVE – Four weeks of fully paid parental leave to give you time to bond with your new addition and support your growing family.
  • TUITION REIMBURSEMENT – Advance your education with support!  We offer tuition reimbursement to support your learning journey. 


Summary of the role

As a Sr Mechanical Engineering Designer supporting our Architecture and Engineering business unit, you will be responsible for designing and drafting mechanical engineering projects under the guidance of Mechanical Engineers/Project Managers. The scope of design will include HVAC, plumbing/piping, refrigeration, fire protection, and fuel systems. As part of a multi-disciplined firm, you will coordinate with Site/Civil Engineers, Electrical Engineers, Structural Engineers, Architects, and Construction Project Managers. You will be responsible for the production of mechanical engineering construction documents while adhering to client requirements, code requirements, and site adjustments.


Responsibilities

  • Assist with design tasks and reports under the direction of senior staff.
  • Conduct site feasibility research and site visit investigations as well as generate reports/recommendations based on findings.
  • Assist in maintaining task budgets.
  • Coordinate and assist with addendums, RFI's and change orders.
  • Assist in coordinating the work of a multi-disciplined team throughout the design development and contract document phases of a project.
  • Assist senior staff with the project approval process.
  • Other related responsibilities as necessary to fulfill the objectives of this role.

Qualifications

We’re looking for talented professionals who are eager to grow their skills and contribute to high-quality, meaningful work. If you’re driven, collaborative, and ready to take the next step in your career, we want to hear from you. The following qualifications will help you succeed in this role: 

  • Bachelor's degree in mechanical engineering
  • 4+ years of experience with general building mechanical design production, preferably with commercial projects such as retail, restaurants, grocery, financial, and/or convenience stores.
  • EIT preferred, not required.

Apply