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Senior Mechanical Engineer Jobs in Riverside, CA

Fluxergy

Senior Mechanical Engineer

Irvine, CA

$112K - $148K/yr

About the Role As a Senior Mechanical Engineer, you will help develop and commercialize next-generation diagnostic systems by designing robust electromechanical solutions from concept through ...

WSP

Senior Mechanical Engineer - Buildings

Riverside, CA · On-site

$100.80 - $147/hr

This Opportunity WSP is currently initiating a search for a Senior Mechanical Engineer to join our Property & Buildings team in Riverside, CA . This role is ideal for a motivated engineer who brings ...

Neon Aerospace

Sr. Mechanical Engineer

Irvine, CA · On-site

$112K - $148K/yr

Neon Aero is looking for a Senior Mechanical Engineer to lead the design and integration of complex mechanical and electromechanical systems for next-generation hardware. You'll work across high ...

WSP

Senior Mechanical Engineer - Buildings

Irvine, CA · On-site

$107.50 - $156.60/hr

This Opportunity WSP is currently initiating a search for a Senior Mechanical Engineer to join our Property & Buildings team in Irvine, CA . This role is ideal for a motivated engineer who brings ...

legence

Senior Mechanical Engineer - P2S

Irvine, CA · Hybrid

$124K - $183K/yr

Are you a Senior Level Mechanical Engineer with 8+ years of experience looking to grow your career? P2S is an award-winning engineering firm that has been named a "Best Place to Work" for the past 15 ...

WSP

Senior Mechanical Engineer - Buildings

Irvine, CA · On-site

$107K - $156K/yr

This Opportunity WSP is currently initiating a search for a Senior Mechanical Engineer to join our Property & Buildings team in Irvine, CA . This role is ideal for a motivated engineer who brings ...

WSP

Senior Mechanical Engineer - Buildings

Riverside, CA · On-site

$100K - $147K/yr

This Opportunity WSP is currently initiating a search for a Senior Mechanical Engineer to join our Property & Buildings team in Riverside, CA . This role is ideal for a motivated engineer who brings ...

WSP

Senior Mechanical Engineer - Buildings

Irvine, CA

$107K - $156K/yr

This Opportunity WSP is currently initiating a search for a Senior Mechanical Engineer to join our Property & Buildings team in Irvine, CA . This role is ideal for a motivated engineer who brings ...

WSP

Senior Mechanical Engineer - Buildings

Riverside, CA · On-site

$100K - $147K/yr

This Opportunity WSP is currently initiating a search for a Senior Mechanical Engineer to join our Property & Buildings team in Riverside, CA . This role is ideal for a motivated engineer who brings ...

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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 Aug 8, 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 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.

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.
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 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $127,867 per year, or $61.5 per hour.

Senior Mechanical Engineer

Fluxergy

Irvine, CA

$112K - $148K/yr

Full-time

Re-posted 4 days ago

Job description

About Us   

Fluxergy is a rapidly growing in vitro diagnostics company innovating on the cutting-edge of laboratory testing. We’re developing the first and only multi-modal point-of-care platform that enables molecular, clinical chemistry, immunoassay, and hematology testing on the same system.  

Our platform spans many markets including the clinical, veterinary, and food safety industries. We are seeking self-motivated problem solvers who are excited to help decentralize traditional laboratory infrastructure.  

At the core of our company’s identity is a strong foundation in engineering. We take great pride in our commitment to critical thinking and pragmatic problem-solving through a modular and systemic perspective. We hold the conviction that transparent communication, coupled with the flexibility to adjust to evolving scenarios and the willingness to venture beyond familiar territories, is crucial to both our success and yours.  

Our product: https://vimeo.com/176673475 

 
 
About the Role
 
As a Senior Mechanical Engineer, you will help develop and commercialize next-generation diagnostic systems by designing robust electromechanical solutions from concept through production. Working closely with electrical, software, manufacturing, and systems teams, you will contribute hands-on technical expertise while helping drive product quality, reliability, and manufacturability. This role is ideal for an engineer who enjoys solving complex technical challenges, collaborating across disciplines, and mentoring others in a fast-paced, regulated environment.
 
Team culture: 
- Positive 
- Proactive 
- Accountable  
- Team oriented 
- Continuous learner
- Great communicator  
- Build strong working relationships 
- Contribute to a productive team culture
 
What You Will Do
  • Design and develop mechanical subsystems, assemblies, and components using SolidWorks, from concept through design transfer and production.
  • Collaborate with electrical, software, and manufacturing teams to integrate mechanical, electronic, and optical systems into reliable products.
  • Design and validate fixtures, tooling, and test equipment to support development, manufacturing, and quality objectives.
  • Perform engineering analyses, including FEA, tolerance stack-ups, and reliability assessments, to optimize performance and mitigate risk.
  • Lead design reviews, DFM/DFA activities, verification testing, and troubleshooting efforts to improve product quality and manufacturability.
  • Author and maintain engineering documentation, subsystem requirements, and design history records in compliance with regulated development processes.
  • Partner with suppliers and manufacturing teams to support component qualification, new product introductions, and design transfer activities.
  • Mentor junior engineers and contribute to continuous improvement of engineering processes, tools, and best practices.
What You'll Need to Have
  • B.S. or M.S. in Mechanical Engineering or a related discipline.
  • 5+ years of experience developing electromechanical products, preferably in medical devices or other regulated industries.
  • Strong proficiency in SolidWorks, including 3D modeling, mechanical drawings, and GD&T.
  • Experience with electro-mechanical integration, PCBA collaboration, fixture/tooling design, and prototyping.
  • Knowledge of injection molding, DFM/DFA principles, and manufacturing processes.
  • Experience performing FEA, tolerance analysis, and reliability testing.
  • Familiarity with ISO 13485, FDA Quality System Regulations, IEC 60601, or similar regulated product development standards.
  • Strong communication, problem-solving, and collaboration skills, with the ability to manage multiple priorities and adapt in a dynamic environment.
  • Demonstrated accountability, initiative, and a passion for mentoring and developing others.
Preferred Qualifications
  • Medical device, diagnostic instrument, or life sciences industry experience.
  • Experience with optical systems, filters, imaging components, or sensor integration.
  • SolidWorks Professional Certification, GD&T Certification, or Six Sigma certification.
Interview Process  

Our interview processes my differ slightly from role-to-role; however, most of our interviews will follow a similar pattern: 

- Recruiter Interview  

- Hiring Manager interview  

- On-site Interview

- Decision    

We are an early-stage company and may change our interview process from time-to-time, but our hope is everyone who interviews with us has a positive experience, even if an offer isn’t presented.  

 
Benefits 
Excellent Medical/Dental Benefits 

- 95% medical benefit premiums paid by Fluxergy and covers employee, partner, and dependents 

- 100% dental and vision premiums paid for employee, partner, and dependents 

- 100% Life Insurance premiums paid for the employee  

 
Work - Life Balance Minded Time Off  

- 15 paid vacation days  

- 2-week paid winter break  

- 7 company paid holidays  

- 5 paid sick days 

 
A Work Culture Which Believes in Promoting from Within

- Wear lots of hats / accelerate your career growth! 

- We are a flat organization by design – lots of visibility!   

- Many of our current leaders started their career with Fluxergy!    

 
Salary Range: $135,000-150,000/yr
 
Additional Information
Fluxergy is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, marital status, age, disability, national or ethnic origin, military service status, citizenship, or other protected characteristic.
 
Fluxergy participates in the E-Verify program. Please click here, here, here for more information.
 
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