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Senior Chemical Process Engineer Jobs in Rancho Cucamonga, CA

Lubrizol Corporation

Senior Process Engineer

Corona, CA · On-site

$120 - $140/hr

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 ...

Lubrizol Corporation

Senior Process Engineer

Corona, CA · On-site

$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 ...

Lubrizol Corporation

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 ...

Lubrizol Corporation

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 ...

Jacobs Management Group

Senior Process Engineer

Corona, CA · On-site

$107K - $138K/yr

Senior Process Engineer My client, a leader in medical-grade extrusion manufacturing, is hiring a Senior Process Engineer to sharpen the processes behind life-critical products. You'll turn ...

AllSTEM Connections

Lead Process Engineer

Ontario, CA · On-site

$110K - $140K/yr

This role is ideal for an engineering professional with a strong background in materials science, metallurgy, manufacturing engineering, or chemical engineering who enjoys solving complex process ...

Worley

Process Engineer Level II

Monrovia, CA · On-site

$110K - $162K/yr

You will provide process engineering services and leadership projects to Worley' and its customers ... Bachelor's degree or master's degree (preferred) in chemical engineer or related field and or ...

GAF

Process Engineer II

Fontana, CA · On-site

$80K - $110K/yr

The Process Engineer is also responsible for ensuring process specifications and associated ... Bachelor's Degree in Engineering (Electrical, Mechanical, or Chemical) coupled 2+ years of ...

Gaf

Process Engineer II

Fontana, CA · On-site

$80K - $110K/yr

The Process Engineer is also responsible for ensuring process specifications and associated ... Bachelor's Degree in Engineering (Electrical, Mechanical, or Chemical) coupled 2+ years of ...

ZEISS

Process Engineer II

Ontario, CA · On-site

$99K - $124K/yr

As an engineering liaison, support CAPA projects and root cause analysis to investigate productivity or quality issues with assistance from Operations and Quality Management. * Assist Sr. Process ...

AllSTEM Connections

Lead Process Engineer

Ontario, CA

$140K/yr

This role is ideal for an engineering professional with a strong background in materials science, metallurgy, manufacturing engineering, or chemical engineering who enjoys solving complex process ...

Grainger Businesses

Process Engineer Lead

Mira Loma, CA · On-site

$95K - $158K/yr

Position Details The Process Engineer Lead owns the design, development, and execution of complex ... The position oversees large-scale projects, mentors senior engineers, and drives innovation through ...

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Senior Chemical Process Engineer information

See Rancho Cucamonga, CA salary details

$93.5K

$128.4K

$159.9K

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

As of Sep 6, 2026, the average yearly pay for senior chemical process engineer in Rancho Cucamonga, CA is $128,436.00, according to ZipRecruiter salary data. Most workers in this role earn between $115,000.00 and $138,000.00 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 Rancho Cucamonga, CA?

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

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

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

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

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

Senior Chemical Process Engineer jobs near you
Infographic showing various Senior Chemical Process Engineer job openings in Rancho Cucamonga, CA as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 18% Part Time, 2% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $128,436 per year, or $61.7 per hour.

Senior Process Engineer

Lubrizol Corporation

Corona, CA • On-site

$120 - $140/hr

Other

Posted 16 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 103 rated chemical manufacturers

Job description

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 techniciansand 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.
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What Lubrizol employees say

Pay

Benefits

Hours and flexibility

Workplace

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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

Social media

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