Machinist Assistant Jobs in Rialto, CA (NOW HIRING)

General Information
Posting Job Title
Entry Level Asst Machine Oper
Locations
CA Corona Container
Employment Type
Full Time
Date Posted
30-Jul-2026
Description & Requirements
Smurfit Westrock (NYSE:SW) is the go-to leader and partner of choice in sustainable packaging. We are dedicated to creating efficient and scalable paper and packaging solutions to help solve complex packaging challenges. Guided by our values of safety, loyalty, integrity and respect, we are committed to delivering meaningful value for shareholders, customers, employees and the communities where we operate.
Corona, CA
Entry Level Assistant Machine Operator
Beginning pay: $25.42
We are seeking Entry Level Machine Operators at our Corona, CA-Facility. You will be responsible for different phases of the production process and for efficiently producing high-quality product. Responsibilities for your role will also include performing quality assurance checks during the production process and managing the upkeep of the of the machines.
Primary duties include safely performing a wide range of tasks that include stacking corrugated products, conducting quality checks, material set-up, and maintaining a clean and organized workspace. The ideal candidate will have a strong commitment to working safe, demonstrated ability to work in a fast-paced environment, a strong desire to learn manufacturing processes and operating complex machinery and have a desire to advance within the company
Essential Duties and Responsibilities:
• Ability to operate various manufacturing equipment, follow specific direction, operate power hand tools, and other duties as assigned.
• Maintain a clean work environment.
• Ability to read a tape measure and have basic math and computer skills.
• Ability to work safely and comply with all safety regulations.
• Ability to lift, push or pull 50lbs, navigate stairs, stand, walk, bend, and kneel throughout the entire shift.
• REQUIRED to work daily OVERTIME, weekend work and various shifts depending on your position.
Experience/Educational Requirements:
• High school diploma or equivalent
• M-F 5am - 5pm and 5pm-5am, Required OVERTIME, weekend work and various shifts depending on your position
• A minimum of 3 years of full-time or part-time employment or schooling (or combination) within the last 4 years
What we offer:
• Corporate culture based on integrity, respect, accountability and excellence
• Comprehensive training with numerous learning and development opportunities
• An attractive salary reflecting skills, competencies and potential
• A career with a global packaging company where Sustainability, Safety and Inclusion are business drivers and foundational elements of the daily work
Our comprehensive benefits package includes health, dental, vision, retirement, an employee assistance program, paid holidays, and vacation.
A career with a global packaging company where Sustainability, Safety and Inclusion are business drivers and foundational elements of the daily work.
The pay for this position range for this position is $25.42 an hour, depending on your role, level, and location. The benefits for this role may include short-term bonus incentive, health, dental and vision insurance, flexible spending accounts or health savings accounts, retirement savings plans, life and disability insurance programs, and paid sick leave as required by applicable state/local law, vacation pay as follows: 5 days of vacation 0-1 year (prorated), and 10 days of paid holidays, subject to annual change. Your actual pay will be based on your work location and other factors, such as your skills, experience, and education. To learn more about the specific salary range for your preferred location, please contact your recruiter during the hiring process. You may apply online at www.westrock.com/company/careers and the application window is expected to close by 7/4/2026.
Candidates are required to undergo a drug screening after receiving a conditional job offer, but before starting employment.
Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status or other characteristics protected by state or federal law.