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Senior Chemical Process Engineer Jobs in Riverside, CA

Senior Process Engineer

Corona, CA · Hybrid

$107K - $138K/yr

The Senior Process Engineer will be assigned to support all functions of the manufacturing areas ... Required Qualifications that Enable Your Success * BS Degree in an Engineering discipline (Chemical ...

Senior Process Engineer

Corona, CA · Hybrid

$107K - $138K/yr

The Senior Process Engineer will be assigned to support all functions of the manufacturing areas ... Required Qualifications that Enable Your Success * BS Degree in an Engineering discipline (Chemical ...

Posted today

Senior Process Engineer

Irvine, CA · On-site

$111K - $143K/yr

Job Overview The Senior Process Engineer leads process system design and technical definition for ... Bachelor's degree in Chemical Engineering * 10-15+ years of experience in oil & gas, LNG, cryogenic ...

Senior Process Engineer

Irvine, CA · On-site

$111K - $143K/yr

Job Overview The Senior Process Engineer leads process system design and technical definition for ... Bachelor's degree in Chemical Engineering * 10-15+ years of experience in oil & gas, LNG, cryogenic ...

Senior Process Engineer

Irvine, CA · On-site

$85 - $120/hr

Job Overview The Senior Process Engineer leads process system design and technical definition for ... Bachelor's degree in Chemical Engineering * 10-15+ years of experience in oil & gas, LNG, cryogenic ...

New

Senior Process Engineer

Irvine, CA · On-site

$150 - $230/hr

Bachelor's degree in Chemical Engineering * 10-15+ years of experience in oil & gas, LNG, cryogenic, or EPC industries * Advanced proficiency in process simulation tools including Aspen HYSYS, Aspen ...

New

Sr Wastewater Process Engineer

Irvine, CA · On-site

$110K - $142K/yr

Use processes such as physical/chemical primary treatment, conventional activated sludge ... Our Team of over 200 process engineers support water, industrial, next generation agriculture, LNG ...

Process Engineer

Lake Forest, CA · On-site

$71K - $80K/yr

Bachelor's degree in Mechanical, Chemical, Bioengineering, or a related field * More than one year of industry experience in manufacturing, injection molding, or process engineering * Exposure to ...

The Process Engineer IV serves as a senior technical leader within the Process discipline ... Bachelor's degree in Chemical, Biological, or Mechanical Engineering from an ABET-accredited ...

Process Engineer

Lake Forest, CA · On-site

$71K - $80K/yr

Bachelor's degree in Mechanical, Chemical, Bioengineering, or a related field * More than one year of industry experience in manufacturing, injection molding, or process engineering * Exposure to ...

Bachelor's degree in Mechanical, Chemical, Bioengineering, or a related field * More than one year of industry experience in manufacturing, injection molding, or process engineering * Exposure to ...

The Process Engineer IV serves as a senior technical leader within the Process discipline ... Bachelor's degree in Chemical, Biological, or Mechanical Engineering from an ABET-accredited ...

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Showing results 1-20

Senior Chemical Process Engineer information

See Riverside, CA salary details

$95.5K

$131.1K

$163.3K

How much do senior chemical process engineer jobs pay per year?

As of Aug 21, 2026, the average yearly pay for senior chemical process engineer in Riverside, CA is $131,119.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,400.00 and $140,800.00 per year, depending on experience, location, and employer.

What is a senior chemical process engineer?

Senior Chemical Process Engineers are experienced professionals who design, develop, and optimize chemical processes used in manufacturing. They lead projects, oversee process safety and efficiency, and mentor junior engineers. Their work ensures that industrial chemical operations are cost-effective, environmentally friendly, and comply with regulations. Senior Chemical Process Engineers often collaborate with multidisciplinary teams and play a key role in troubleshooting and continuous improvement initiatives.

How do senior chemical process engineers typically collaborate with cross-functional teams during large-scale projects?

Senior Chemical Process Engineers frequently work alongside professionals from disciplines like mechanical engineering, instrumentation, safety, and project management. They play a key role in translating process requirements into actionable engineering solutions and ensure process integration aligns with overall project goals. Regular meetings, detailed documentation, and clear communication are essential, as these engineers often lead technical discussions, resolve interdisciplinary challenges, and coordinate between design, operations, and quality assurance teams to drive projects forward efficiently.

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

To thrive as a Senior Chemical Process Engineer, you need a strong background in chemical engineering principles, process design, and problem-solving, typically supported by a bachelor's or master's degree in chemical engineering. Familiarity with process simulation software (such as Aspen Plus or HYSYS), plant safety standards, and relevant certifications (like Professional Engineer licensure) is highly valuable. Strong analytical thinking, leadership, and effective communication skills help drive project success and lead cross-functional teams. These skills and qualities are crucial for optimizing manufacturing processes, ensuring safety, and delivering cost-effective solutions in complex industrial environments.

What is the difference between Senior Chemical Process Engineer vs Chemical Process Engineer?

AspectSenior Chemical Process EngineerChemical Process Engineer
Required CredentialsBachelor's or Master's in Chemical Engineering; 5+ years experienceBachelor's in Chemical Engineering; entry to 2 years experience
Work EnvironmentDesign, optimization, and supervision in manufacturing or R&D facilitiesAssist in process design, testing, and operation in manufacturing plants
Employer & Industry UsageManufacturing, oil & gas, pharmaceuticals, chemicalsSimilar industries, often as entry-level or mid-level roles

The main difference between a Senior Chemical Process Engineer and a Chemical Process Engineer lies in experience, responsibilities, and seniority. Senior engineers typically lead projects, oversee teams, and have more advanced expertise, while chemical process engineers focus on supporting process design and operation. Both roles are essential in chemical manufacturing and related industries, but senior positions require more experience and leadership responsibilities.

What are popular job titles related to Senior Chemical Process Engineer jobs in Riverside, CA?

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

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

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

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

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

Infographic showing various Senior Chemical Process Engineer job openings in Riverside, CA as of July 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, 1% Temporary, 1% Contract, and 1% Nights. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution, with an average salary of $131,119 per year, or $63 per hour.

Senior Process Engineer

Lubrizol Corporation

Corona, CA • Hybrid

$107K - $138K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 23 days ago


Lubrizol rating

8.7

Company rating: 8.7 out of 10

Based on 54 frontline employees who took The Breakroom Quiz

15th of 100 rated chemical manufacturers


Job description


Shape the Future with Us.
At Lubrizol, we're bringing to life the chemistry behind clean water, efficient transportation, reliable infrastructure, critical medicines, and the products people rely on every day through science, sustainability, and a culture of inclusion.
 
As part of our global team, you'll be empowered to make a real impact - on your career, your community, and the world around you.

Job Type: Full-Time / On-Site

Salary:  $120,000 - $140,000 with 6% bonus

Dayshift

 

 

How You'll Make an Impact

As a Senior Process Engineer, you'll be at the forefront of our innovation, providing technical assistance and engineering support to the manufacturing group.   You'll collaborate with a diverse group of passionate individuals to deliver sustainable solutions to advance mobility, improve wellbeing and enhance modern life. Your work will directly impact improving existing processes, developing new and cost-effective manufacturing concepts, as well as training production operators, and engaging maintenance personnel in resolving equipment problems using systematic methods of troubleshooting, root cause analysis, and irreversible corrective action implementation. The Senior Process Engineer will be assigned to support all functions of the manufacturing areas.

  • Drive process improvements including technology, reducing scrap,  and new concepts made real and reduced costs as to meet customer expectations on Quality and cost.
  • Support extrusion, secondary operations, and packaging to ensure delivery and quality levels.
  • Lead flawless launches of new product activities including FMEA, PFD, part and tool design reviews, and other cross functional team events.
  • Engage maintenance personnel in resolving process, and equipment problems using systematic methods of troubleshooting, root cause analysis, and irreversible corrective action implementation.
  • Provide technical evidence and responses to customer service/customers as required.
  • Mentor technicians and engage maintenance personnel in resolving, tooling and equipment problems using systematic methods of troubleshooting, root cause analysis, and irreversible corrective action implantation.
  • Drive validation and qualification (IQ/OQ/PQ) protocols for new product, equipment, tooling and processes as directed.
  • Follow SOP on re-validation of existing equipment, tooling and processes.
  • Work closely with internal and external Project Engineers in developing processes that meet customer expectations on cost, quality and delivery of new product development.
  • Document lessons learned and report status of all projects and assignments in a timely manner.
  • Generate, update and implement process documentation, to include PCO's, operator work instructions, manufacturing procedures, sample requests, process, inspection and troubleshooting guides.
  • Close assigned CAPA's in a timely manner.
  • Complete projects and report status in a timely manner.  Utilize project management tools in establishing timelines, building action item list and completing milestones.
  • Understand and follow the SOP's pertaining to the specific area.
  • Understand and follow the work instructions pertaining to the specific area.
  • Communicate clearly and concisely, both orally and in writing.
  • Assists cost accounting in establishing new or revised standard costs for new or existing product lines.
  • Support the conversion of small -scale processes into commercially viable large-scale operations.

 

Required Qualifications that Enable Your Success

  • BS Degree  in an Engineering discipline (Chemical, Mechanical or Biomedical preferred)
  • 5+ Years of experience in an industrial environment including Co-op experience.
  •  Experience with Root cause analysis
  • Excellent (written and verbal) communication and effective human interaction skills.

 

Preferred Qualifications that Drive you Forward

  • Experience with Thermoplastics extrusion, molding and/or assembly process is strongly preferred.
  • Six Sigma Green or Black Belt
  • Lean Manufacturing
  • Flexible to change, and possess a high degree level of integrity and "can do attitude".
  • Able to comprehend college algebra, college physics, basic chemistry, statistics and unit conversion.
  • Able to learn fast and multi-task.

 

Your Work Environment
At Lubrizol, we're committed to providing a safe, inclusive, and empowering environment where you can do your best work-whether in a lab, on the production floor, or in a hybrid office setting. Depending on your role, your work environment may include:

  • Standing, walking, or operating equipment for extended periods
  • Working in a lab or manufacturing setting with appropriate PPE provided
  • Use of computers and digital tools in an office or hybrid environment
  • Occasional lifting or movement of materials
  • Adherence to rigorous safety protocols and ergonomic standards


We continuously invest in our facilities and technologies to ensure they support your well-being, productivity, and growth. If you require reasonable accommodation, we are committed to working with you to ensure an inclusive and accessible experience.

 

Benefits that Empower You

  • Competitive salary with performance-based bonus plans
  • 401(k) match + Age-Weighted Defined Contribution
  • Comprehensive medical, dental & vision coverage
  • Health Savings Account (HSA)
  • Paid holidays, vacation, and parental leave
  • Flexible work environment
  • Learning and development opportunities
  • Career and professional growth
  • Inclusive culture and vibrant community engagement
    Learn more at benefits.lubrizol.com!

#LI-LT11  #LBZUS

Lubrizol: Imagined for Life. Enabled by Science. Delivered by You. For nearly 100 years, The Lubrizol Corporation, a Berkshire Hathaway company, has been at the forefront of innovation to enhance everyday life, advance mobility, and make the modern world work better. Our specialty chemistry solutions-from engine oils, performance coatings, and skincare to medical devices and plumbing systems -are powered by the expertise, passion, and commitment of people like you. We tackle the world's toughest challenges with science-based solutions, deeply understanding our customers to deliver innovative chemistry and differentiated value. Our inclusive culture, dedication to safety, and incredible global talent drive our success. Our solutions meet the evolving needs of the modern world-brought to life by science and, most importantly, delivered by you. Whether you're in the lab, on the production floor, or in the office, you'll be part of a team around the world that empowers you to think boldly, drive results, and contribute to solutions that shape a better, more sustainable future. We win because of you. Let's build the future together.


What Lubrizol employees say

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About Lubrizol

Sourced by ZipRecruiter

The Lubrizol Corporation, a Berkshire Hathaway company, is committed to enabling a sustainable future. Our unmatched science unlocks immense possibilities at the molecular level, driving sustainable and measurable results to help the world Move Cleaner, Create Smarter and Live Better. Our solutions are used by people every day, improving billions of lives around the world.

Industry

Chemical manufacturing

Company size

10,000+ Employees

Headquarters location

Wickliffe, OH, US

Year founded

1928

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