Sr. Process Engineer

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Date: Nov 7, 2023

Location: Corona, CA, US, 92879

Company: Lubrizol Corporation

​​Salary Range: $120,000 - $150,000 

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. 

We value diversity in professional backgrounds and life experiences. By enabling a consistent, unbiased, and transparent recruitment process, Lubrizol seeks to create a positive experience for candidates so we can get to know them at their best. We recognize unique work and life situations and offer flexibility, ensuring our employees feel engaged and fulfilled in every aspect of life. 


The purpose of this job is to provide technical assistance and engineering support to the manufacturing group.  Additionally, to improve existing processes, develop new and cost-effective manufacturing concepts, as well as train production operators, and engage 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 any and all functions of the manufacturing areas.


DUTIES AND RESPONSIBILITIES:  Duties and responsibilities are functions of the job and should not reflect the special talents or performance of an employee.

  • Improve existing processes, develop new and cost-effective manufacturing concepts, lead scrap reduction teams through lean methodologies, and actively participate in value improvement projects.
  • Provide technical assistance, process development and engineering support to the manufacturing floor to include Extrusion, Secondary Operations, and packaging areas to ensure timely delivery of product while meeting customer expectations on cost and quality.
  • Engage maintenance personnel in resolving process, and equipment problems using systematic methods of troubleshooting, root cause analysis, and irreversible corrective action implementation.
  • Lead flawless launches of new product activities through active participation in FMEA, PFD, part and tool design reviews, Kaisen and other cross-functional team events.
  • 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 coversion of small –scale processes into commercially viable large-scale operations.
  • Performs other required duties as needed in addition to the essential duties and responsibilities described above.



  • Observe and promote company standards and policies on safety, quality and productivity



  • The employee will constantly be exposed to working near moving mechanical parts with frequent exposure to risk of electrical shock. The employee will occasionally be exposed to wet humid conditions, working in highprecarious places, fumes or airborne particles, or travel on company business. The employee will rarely (if ever) be subject to toxic or caustic chemicals.  The noise level is considered loud, if near operating production equipment.


Tools/Equipment used:

  • Constant use of hand/power tools and machine equipment, with frequent use of maintenance shop tools.
  • Use of pallet/hydraulic jacks.


     Protective Clothing/Equipment Required:          

  • The employee will be required to wear appropriate Personal Protective Equipment such as; safety glasses in the designated areas, hairnet/beard net, gloves when handling hot objects or solvents, jumpsuit, earplugs (as needed) on production floor.


Special Vision Requirements:

  • Vision requirements are: close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus.


PHYSICAL DEMANDS:                  

  • Physical demand for this job is considered frequently lifting between 10 to 25 pounds at medium level and occasionally lifting up to 55 pounds only.
  • May frequently be subject to sustained bending, using hands to finger or handle or  touch, use foot/feet to operate machine with constant exposure to dynamic standing/sitting. 
  • Occasionally, be exposed to static standing/sitting, pushing (55 lbs. of force).
  • Floor to knuckle lift/lower (55 lbs.)
  • Knuckle to shoulder lift/lower (55 lbs.)
  • Shoulder to overhead lift/lower (55 lbs.)
  • Climb/balance, stoop, kneel, crouch or crawl; reach above shoulders and repetitive bending or squatting.



  • Thermoplastics extrusion, molding and/or assembly process is strongly preferred.
  • Root cause analysis
  • Six Sigma Green or Black Belt (strongly preferred)
  • Lean Manufacturing (strongly preferred)
  • Excellent (written and verbal) communication and effective human interaction skills.
  • Flexible to change, and possess a high degree level of integrity and “can do attitude”.
  • Willing to work in a team environment and contribute to group goals.
  • Ability to receive and provide instructions in a positive manner.
  • Able to comprehend college algebra, college physics, basic chemistry, statistics and unit conversion.
  • Able to learn fast and multi-task.
  • Perform other duties, as required


EDUCATION:  Successful completion of 4-years of college with a Bachelor’s degree, preferably with a Bachelor of Science in Engineering with a focus on engineering or polymer science.



  • Use of a PC with Microsoft Office Programs, Solid Works and others.


What Lubrizol offers:

  • Competitive salary with performance-based bonus plans
  • 401k Match plus Age Weighted Defined Contribution
  • Competitive medical, dental and vision offerings
  • Health Savings Account
  • Paid Holidays, Vacation, Parental Leave



If you’re interested in the position, we encourage you to apply. Lubrizol is always looking for candidates who embody our cultural beliefs in everything they do. If you’re All In, Lead Decisively, Take Action, Think External, and can Be Courageous, Lubrizol could be the place for you.








Nearest Major Market: Corona
Nearest Secondary Market: Los Angeles

Job Segment: Lean Six Sigma, Six Sigma Black Belt, Manufacturing Engineer, Process Engineer, Six Sigma, Management, Engineering

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