Math Lab Assistant Jobs in Riverside, CA (NOW HIRING)

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.

JobType:Full-time with OT; Onsite 

Shift+Hours:all shifts

• 1st shift: 5 am - 5 pm  (M,T,W,TH) with optional OT on Friday
• 2nd shift: 5 pm - 5 am (M,T,W,TH) with optional OT on Friday

Hourly Pay Rates:  

• Level I: $21.50/hr 

• Level II: $23/hr 

• Level III: $28/hr 

Shift Differential:  

• 2nd shift: 5% 

Overtime available 

Productivity Bonuses 

Annual Bonus: 6% 

HowYou'llMake anImpact 

As an Extrusion Operator/Technician, you will play a critical role in producing medical grade tubing to the highest standards of quality and efficiency. You'll operate state-of-the-art extrusion equipment in a clean room environment, helping to supply the world with essential medical components.  You'llcollaborate safely with a diverse group of passionate individuals to deliver sustainable solutions to advance mobility, improvewellbeing,and enhance modern life.In this role, you will: 

• Safety & Communication: Operate safely with hot plastics, extrusion machinery, and automation; communicate safety observations clearly in writing and verbally.  

• Compliance & Lean: Follow all cGMP/GDP standards, company policies, 5S, and lean manufacturing practices; use SMED tools for efficient changeovers.  

• Work Area & Shift Readiness: Clean, set up, assemble, and maintain work areas; restock supplies; complete shift handoffs and line clearances accurately.  

• Documentation & Verification: Verify routers/work orders before and during production; document process parameters and maintain accurate production records.  

• Quality & Measurement: Collect and inspect product; use Zumbach, MicroVu, pin/snap gauges, and other metrology tools; run moisture tests and ensure tubing meets specifications. 

Level I - Operator: 

• Operate extrusion equipment and perform setups with support; assist with Zumbach monitoring and guided process debugging. 

• Perform basic troubleshooting, moisture tests, dimensional checks, cutting/measurement, and ensure tubing meets required specifications. 

• Maintain accurate documentation with guidance, restock materials, clean equipment, and ensure effective shift to shift communication. 

Level II - Technician:  

• Independently set up and run single lumen/single layer extrusion jobs; configure Zumbach and verify tools/dies with minimal support. 

• Complete line clearances and all associated paperwork without assistance; perform MicroVu measurements, gauge inspections, and moisture testing. 

• Perform controlled debugging/modifications with some support; remove/document dryer material and maintain readiness for next shift. 

Level III - Technician (Advanced Processes): 

• Independently run at least 3 advanced extrusion processes (e.g., bump, multi-lumen, coex/tri-layer, braided, vacuum, tight tolerance/thin wall). 

• Set up and maintain all auxiliary equipment; independently debug and modify single lumen/single layer processes to reduce scrap and improve quality. 

• Perform all testing (moisture, elongation, shrinkage, burst, peel) and maintain all documentation autonomously with full process ownership. 

RequiredQualificationsthat Enable Your Success 

Level I: 

• 1+ years of experience working as a machine operator or technician in a plant, manufacturing, or industrial environment 

Level II: 

• 2+ years of experience working as a plastics extrusion operator or technician

Level III:

• 5+ years of experience working as a plastics extrusion operator or technician 

All Levels: 

• Education: HS Diploma, GED, or equivalent education degree 

• Instruction & SOP Discipline: Comfortable following written instructions and standard operating procedures.  

• Safety, Quality & Detail Orientation: Strong safety mindset with high attention to detail and commitment to producing high quality products.  

• Teamwork & Adaptability: Excellent communication skills and a collaborative mindset; willingness to learn, grow, and adapt in a fast-paced manufacturing environment.  

• Math & Measurement Skills: Demonstrated basic math proficiency (addition, subtraction, multiplication, division, unit conversions). 

PreferredQualificationsthatDrive you Forward 

• Technical or Associate's Degree in a related field 

• Experience with entering electronic work order documentation  

• QAD and SAP experience 

• Medical Device industry experience 

Your Work Environment 
At Lubrizol,we'recommitted 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 withappropriate PPEprovided 

• 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 requirereasonableaccommodation, we are committed to working with you to ensure aninclusiveand 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 andprofessionalgrowth
• Inclusive culture and vibrant community engagement 

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.