Mechanical Assembler

Winpak Ltd.; Rialto (CA); On-site; USD 30,000 - 34,000; Full time

Job summary

Winpak Lane in Rialto, California, is seeking a Mechanical Assembler to join our Assembly team. You will build and align custom packaging machinery from blueprints, verify component quality, and help prepare equipment for shipment.

This hands-on role requires precision, troubleshooting, and collaboration with Engineering, Planning, and Production to resolve issues while maintaining safety standards and a clean workspace.

Qualifications

• High school diploma or equivalent.
• 2+ years of mechanical assembly or related hands-on experience.
• Ability to read blueprints, diagrams, manuals, and written work instructions.
• Working knowledge of basic shop math and precision measuring tools.
• Ability to lift up to 50 pounds unassisted, use ladders, work at heights up to 25 feet, and squat or sit for extended periods.

Responsibilities

• Assemble complex packaging machinery and options from drawings, work instructions, and specifications.
• Fit, align, adjust, and verify components within required tolerances; confirm final alignment before shipment.
• Inspect starting materials and assembled parts, identify shortages or defects, and communicate issues promptly.
• Install mechanical systems such as chains, pulleys, gearboxes, pneumatic components, regulators, and air lines.
• Use hand and light power tools, calipers, micrometers, scales, and other measuring devices safely and accurately.
• Troubleshoot build issues and partner with Engineering, Planning, Fabrication, and Production to resolve them.
• Follow safety, personal protective equipment, 5S, and continuous-improvement requirements; maintain an organized work area.
• Support training and increasingly complex machine builds based on demonstrated skill level.

Skills

Blueprint reading

Troubleshooting

Attention to detail

Safety conscience

Education

High school diploma or equivalent

Trade-school training in mechanical assembly

Tools

Calipers

Micrometers

Hand tools

Pneumatic components knowledge

Job description

Winpak Lane is seeking a Mechanical Assembler to join our Assembly team in Rialto, California. You will build and align custom packaging machinery from blueprints, verify component quality, and help prepare equipment for successful shipment. This is a hands-on opportunity for a mechanically skilled professional who enjoys precision work, troubleshooting, and seeing complex equipment come together.

Key Responsibilities

• Assemble complex packaging machinery and options from drawings, work instructions, and specifications.
• Fit, align, adjust, and verify components within required tolerances; confirm final alignment before shipment.
• Inspect starting materials and assembled parts, identify shortages or defects, and communicate issues promptly.
• Install mechanical systems such as chains, pulleys, gearboxes, pneumatic components, regulators, and air lines.
• Use hand and light power tools, calipers, micrometers, scales, and other measuring devices safely and accurately.
• Troubleshoot build issues and partner with Engineering, Planning, Fabrication, and Production to resolve them.
• Follow safety, personal protective equipment, 5S, and continuous-improvement requirements; maintain an organized work area.
• Support training and increasingly complex machine builds based on demonstrated skill level.

Required Qualifications

• High school diploma or equivalent.
• 2+ year of mechanical assembly, industrial maintenance, field service, or related hands-on experience.
• Ability to read blueprints, diagrams, manuals, and written work instructions.
• Working knowledge of basic shop math and precision measuring tools.
• Ability to lift up to 50 pounds unassisted, use ladders, work at heights up to 25 feet, and squat or sit for extended periods, with or without reasonable accommodation.

Preferred Qualifications

• Trade-school training in mechanical assembly, machining, or a related technical field.
• Experience with packaging machinery, pneumatics, tight-tolerance assembly, geometric dimensioning and tolerancing, or machine rebuilds.
• Experience with material requirements planning software and basic computer transactions.

Level Placement

Placement from Level I through Senior is based on relevant experience and demonstrated capability. Higher levels require independent completion of increasingly complex W18, W25, W630, option, cup-machine, or rebuild work, along with technical leadership and training responsibilities.

• Full-time, non-exempt position based 100% onsite in Rialto, California.
• Schedule and shift will be confirmed during the recruitment process; overtime may be required based on business needs.
• Travel is generally not required.
• Work is performed in a manufacturing environment with noise, moving equipment, flying debris, temperature changes, and required personal protective equipment.

Compensation

Compensation range: $2400- $25.00. Pay will be determined based on the candidate’s experience, demonstrated skill level, and other job-related factors.

Why Winpak?

Winpak is committed to providing comprehensive benefits to support the physical, mental, financial and social well-being of our employees and their families. Our benefit package includes the following:

• Disability coverage
• Voluntary life insurance
• Life and accidental death & dismemberment insurance
• Tuition assistance program
• Retirement savings plans
• A comprehensive employee and family assistance program which includes short term counselling, wellbeing coaching, financial and legal consultations services.

Winpak’s vision is to provide the best packaging solutions for people and planet. We are a leading supplier of innovative packaging solutions, known for providing high-quality products that meet the needs of a variety of industries, including food and beverage, pharmaceuticals, and consumer products. With a commitment to sustainability, safety, and excellence, Winpak continues to grow as a global leader in the packaging industry.

At Winpak, inclusion is one of our core values.We believe that an inclusive culture fosters a sense of belonging, drives innovation, and provides our brand a competitive advantage. Our goal is to create an environment free from harassment and discrimination, and where every individual feels respected, valued, and appreciated.

As an Equal Opportunity Employer,we are committed to an equitable and inclusive recruitment process, evaluating applicants based on merit, capability, and qualifications related to the job - never on identity factors such as race, color, gender, age, sexual orientation, religion, disability, national origin, or any other protected status. To support this commitment, if you require any accommodations during the recruitment process, please let us knowand we will work with you to ensure your needs are met.

Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.