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Senior Process Engineer Jobs in Rancho Cucamonga, CA

Job Summary The Process Engineer position is responsible for ensuring proper optimized operations to produce products and develop processes to ensure quality, cost and efficiency plans are met. This ...

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Senior Process Engineer information

See Rancho Cucamonga, CA salary details

$76.6K

$123.8K

$174.2K

How much do senior process engineer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for senior process engineer in Rancho Cucamonga, CA is $123,771.00, according to ZipRecruiter salary data. Most workers in this role earn between $106,300.00 and $137,400.00 per year, depending on experience, location, and employer.

What does a senior process engineer do?

A Senior Process Engineer is responsible for designing, optimizing, and overseeing processes within manufacturing or production environments. They analyze workflows, troubleshoot issues, and implement improvements to increase efficiency, safety, and product quality. Senior Process Engineers often lead projects, mentor junior engineers, and collaborate with cross-functional teams to ensure operational excellence. Their expertise is vital in industries like chemicals, pharmaceuticals, oil and gas, and food processing.

What are the key skills and qualifications needed to thrive as a senior process engineer?

To thrive as a Senior Process Engineer, you need a strong background in chemical or process engineering, problem-solving skills, and typically a bachelor's or master's degree in a relevant field. Expertise in process simulation software (such as Aspen Plus or HYSYS), Six Sigma or Lean certifications, and familiarity with process control systems are highly valued. Outstanding analytical abilities, leadership, and effective communication set top performers apart in this role. These skills and qualifications are crucial for optimizing processes, ensuring safety and compliance, and leading teams to achieve operational excellence.

What are some common challenges senior process engineers face when working on cross-functional teams?

Senior Process Engineers often collaborate with professionals from various departments, such as operations, quality, and maintenance. A common challenge is aligning diverse priorities and communication styles to achieve shared project goals. Successfully managing these differences requires strong interpersonal and project management skills, as well as the ability to translate technical concepts for non-engineering colleagues. Regular meetings and clear documentation can help ensure everyone stays informed and engaged throughout the process.

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

AspectSenior Process EngineerProcess Engineer
QualificationsBachelor's or Master's in Engineering, often with 5+ years experienceBachelor's degree in Engineering or related field, typically 1-3 years experience
ResponsibilitiesLeading process improvements, mentoring, project managementSupporting process development, data analysis, assisting senior staff
Work EnvironmentDesign teams, manufacturing plants, R&D departmentsManufacturing facilities, engineering teams, operational support

Senior Process Engineers typically have more experience, leadership duties, and oversee complex projects, while Process Engineers focus on supporting process development and implementation. Both roles are essential in manufacturing and engineering industries, but the senior role involves greater responsibility and strategic planning.

How much does a senior process engineer earn?

A senior process engineer typically earns between $80,000 and $130,000 annually, depending on experience, industry, and location. They often have specialized skills in process optimization, project management, and may hold certifications like Six Sigma or PE licensure.

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

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

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

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

Infographic showing various Senior Process Engineer job openings in Rancho Cucamonga, CA as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 15% Part Time, 2% Contract, and 1% Nights. Highlights an 89% Physical, 2% Hybrid, and 9% Remote job distribution, with an average salary of $123,771 per year, or $59.5 per hour.

Process Engineer II

Gaf

Fontana, CA

$80K - $110K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 11 days ago


Job description

At GAF, we cover more than just buildings. We cover each other. Under this roof, you will have the tools and resources you need to grow and develop in your career. You will experience our incredible culture and will be empowered to support your teammates, your customers, and especially your community. Under this roof, we define the future while leading the present through our deep well of experience and our responsibility to the future to drive improvements and innovation in our products. We are GAF. And under this roof, we protect what matters most.

Job Summary
The Process Engineer position is responsible for ensuring proper optimized operations to produce products and develop processes to ensure quality, cost and efficiency plans are met. This position drives for sustainable root cause problem resolution and overall process improvements through use of KT tools, process/quality trials and sound engineering fundamentals. The Process Engineer is also responsible for ensuring process specifications and associated documentation is maintained and communicated/trained.
Essential Duties

  • Lead process design reviews, raw material qualification and product and process qualification and capability studies.

  • Performs PPA/FMEA on all major process and raw material changes.

  • Train production personnel on Statistical process Control (SPC).

  • Leads the application and interpretation of SPC charting Train and educates personnel on company products, plant and corporate quality policies and procedures; including internal and external personnel, suppliers and customers.

  • Conduct internal compliance audits of production tests, process specifications, plant change notices (PCN's) and other in-plant processes.

  • Co-ordinate Plant Trials with R&D and plant personnel.

  • Ensures trials are accurately conducted and reported.

  • Train and educate personnel on company products, plant and corporate quality policies and procedures; including internal and external personnel, suppliers and customers.

  • Standardize Manufacturing JSA's, Standard operating procedures (SOPs) and work instructions to maximize the production departments productively while minimizing wasted time and controlling cost.

  • Analyze Manufacturing processes, equipment, and systems for failures and provide solutions to eliminate production downtime or extend time between downtime and equipment failures.

  • Conduct and or lead breakdown analysis investigations, perform failure analysis, Fishbone analysis and focused improvement activities for the production line.

  • Plant liaison for Manufacturing improvement projects between other groups and plant personnel.

  • Instruct and train plant personnel on Root Cause Analysis; Support Root Cause Analysis as a focused manufacturing improvement strategy.

  • Work closely with Production operators to improve manufacturing /processes that adversely affect equipment or product quality.

  • Review engineering specifications and drawings, propose design modifications to improve manufacturing processes within cost and business requirements.

  • Support all Plant Safety improvements/projects.

  • Participate in Plant Safety Teams and Continuous improvement projects.


Qualifications Required

  • Bachelor's Degree in Engineering (Electrical, Mechanical, or Chemical) coupled 2+ years of demonstrated related experience in a manufacturing environment. required

  • Demonstrated knowledge of engineering fundamentals


Qualifications Preferred

  • Advanced proficiency in Google Suite, PLC and AutoCAD.


Physical Demands

  • Stationary Position - Frequently

  • Move/Traverse - Frequently

  • Stationary Position/Seated - Occasionally

  • Transport/Lifting - Frequently

  • Transport/Carrying - Frequently

  • Exerting Force/Pushing - Frequently

  • Exerting Force/Pulling - Frequently

  • Ascend/Descend - Frequently

  • Balancing - Occasionally

  • Position Self/Stooping - Frequently

  • Position Self/Kneeling - Frequently

  • Position Self/Crouching - Frequently

  • Position Self/Crawling - Frequently

  • Reaching - Constantly

  • Handling - Constantly

  • Grasping - Frequently

  • Feeling - Rarely

  • Communicate/Talking - Occasionally

  • Communicate/Hearing - Frequently

  • Repetitive Motions - Frequently

  • Coordination - Frequently


Working Conditions

  • Extreme cold - Frequently

  • Extreme heat - Frequently

  • Humid - Frequently

  • Wet - Frequently

  • Noise - Frequently

  • Hazards - Frequently

  • Temperature Change - Frequently

  • Vibration - Frequently

Base salary and/or rate of pay ranges listed are exclusive of fringe benefits and potential bonuses. Individual compensation offers will be determined based on a variety of factors, including but not limited to geographic location, relevant candidate experience and skill, education, and/or qualifications.Base Salary Range: $80,000-$110,000

How We Protect What Matters Most:

1. We offer a wide range of health insurance options that include medical, dental, and vision for you and your family. 2. Our Family-Building benefits support the many different journeys to fertility and parenthood. 3. Our robust 401K plan includes an employer match contribution with your pre-tax and/or Roth contributions. 4. Other exciting programs and perks are available to help employees achieve work-life balance, including (but not limited to) a wellness program, free financial coaching, a referral program, and product rebates when purchased for an employee's primary residence. 5. Professional growth and development are very important to us! We offer internal training programs and courses, as well as a generous tuition reimbursement program. 6. We're committed to fostering a culture that reflects our values to connect, empower, evolve, and inspire. We offer many opportunities for employees to connect with one another, including through our Employee Resource Groups who focus on education and allyship for all of our employees.

GAF complies with federal, state, and local disability laws and makes reasonable accommodations for applicants and employees with disabilities. If a reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact HR Services at 833-HR-XPERT.

We believe our employees are our greatest resource. We offer competitive salary, benefits, 401k, and vacation packages for all full time permanent positions. We are proud to be an equal opportunity workplace. We are committed to equal employment opportunity on the basis of each candidate's qualifications, experience, and merit, without regard to race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. If you have a disability or special need that requires accommodation, please let us know. If applying for positions in the U.S., must be eligible to work in the U.S. without need for employer sponsored visa (work permit).

GAF logo

About GAF

Sourced by ZipRecruiter

With 130+ years in the industry, GAF is the leading roofing manufacturer in North America. As a member of the Standard Industries family of companies, we are also part of the largest roofing and waterproofing business in the world. Our communities help give our work meaning and the products we manufacture help protect what matters most. The shingles help to shelter the families living in the homes in our towns. The TPO helps protect what is under that hospital’s roof. In addition to quality products, we make sure they are installed by quality craftsmen and women. The full GAF portfolio of solutions is supported by an extensive national network of factory-certified contractors. GAF continues to be the leader in quality and offers comprehensive warranty protection on its products and systems. Our success is driven by a commitment to empowering our people to deliver advanced quality and purposeful innovation and the desire to protect what matters most. ​

Industry

Construction materials wholesalers

Company size

1,001 - 5,000 Employees

Headquarters location

Parsippany, NJ, US

Year founded

1886