Prep Assembly Jobs in California (NOW HIRING)

This role supports the production of surgical single-use items, instruments, and kits by performing cleanroom assembly and preparation tasks on a 2nd shift production line. You will work with raw materials, perform precise assembly and packaging operations, and follow strict quality and documentation standards in a controlled cleanroom environment. This is a contract-to-hire opportunity with consistent weekday hours and potential overtime.

• Count, cut, measure, fold, and modify raw materials according to instructions in the Device Master Record, ensuring accuracy and completeness.
• Complete required inspections and documentation of quantities, control numbers, and other information in accordance with QS and GMP policies.
• Perform on-line inspection of each device as it is produced, promptly identify defects or issues, and report problems to the Production Supervisor for disposition.
• Seal products in their final packaging configuration, following established procedures and using correct machine settings for the sealer.
• Prepare packaged work-in-progress for sterilization and complete all associated documentation and control numbers per QS and GMP requirements.
• Maintain proper inventory control procedures, including product staging, segregation, and rotation to ensure accurate tracking and flow of materials.
• Perform and document scheduled facility cleaning activities in accordance with QS requirements.
• Understand and adhere to proper cleanroom etiquette at all times, including gowning procedures and contamination control practices.
• Operate basic production equipment safely and efficiently as part of the assembly and packaging process.
• Communicate and collaborate effectively with production, purchasing, quality, and senior leadership to accomplish assigned goals and objectives.
• Support and help meet the objectives of the quality management system and recommend improvements when opportunities are identified.
• Work as part of a small cleanroom team to meet daily production targets and maintain high quality standards.
• Provide positive, supportive teamwork that contributes to a constructive work atmosphere and strong morale.
• Identify and suggest improvements or modifications to departmental procedures to enhance efficiency, quality, or safety.
• Perform other related duties as assigned by the Production Supervisor.
• Follow established shift schedules, including 2nd shift hours and any required overtime on weekdays or Saturdays.

• Ability to lift up to 25 lbs safely and repeatedly during the shift.
• Strong attention to detail and motivation to maintain high quality and productivity.
• Preferred 1 year of experience in a cleanroom, medical assembly, or warehouse environment.
• Ability to operate basic production equipment in a manufacturing or assembly setting.
• Good verbal and written communication skills, including basic English to read work orders and communicate with supervisors and auditors.
• Capability to follow detailed work instructions, Device Master Records, and quality system procedures.
• Comfort working in a production, packing, and assembly environment involving medical devices and components.
• Ability to work effectively as part of a team to achieve shared production and quality goals.
• Willingness to work 2nd shift (approximately 3:00 PM – 11:30 PM, Monday through Friday) with overtime as needed on weekdays or Saturdays.

• Experience in cleanroom operations, medical device assembly, or medical product manufacturing.
• Familiarity with QS (Quality System) and GMP (Good Manufacturing Practice) requirements.
• Experience with general production, packing, and cleanroom procedures.
• Exposure to medical device components such as catheters and related assemblies.
• Comfort using hand tools, power tools, microscopes, and following blueprints or work instructions.
• Demonstrated team leadership capabilities and the ability to contribute to a positive team culture.
• Ability to identify improvements and modifications to departmental procedures and communicate them constructively.
• Comfort working in an environment where many tenured employees primarily communicate in Spanish, while using basic English for documentation and communication with supervisors and auditors.

You will join a growing organization that plays a direct role in supporting healthcare through the production of high-quality surgical products. The position offers a clear contract-to-hire path, giving you the opportunity to move into a longer-term role based on performance. You will receive access to medical, dental, and vision benefits, supporting your overall well-being. The workplace emphasizes teamwork, continuous improvement, and a positive attitude, providing an environment where your contributions are valued and your ideas for process enhancements are welcomed.

This role is based in a controlled cleanroom environment within a small department of approximately four employees. You will work on 2nd shift, typically from 3:00 PM to 11:30 PM, Monday through Friday, with the possibility of overtime on weekdays or Saturdays. Set breaks occur after approximately four hours of work. The cleanroom requires strict adherence to gowning and dress standards, including wearing scrubs, a white coat, gloves, and a hair net, and not wearing makeup, jewelry, artificial eyelashes, or artificial nails while on the production floor. Team members must follow cleanroom entry and exit procedures, including gowning and de-gowning, and notify the lead before leaving the room for water or restroom breaks. The environment uses production and packaging equipment, and work involves handling medical device components under QS and GMP guidelines. Many tenured employees primarily communicate in Spanish, while basic English is used for reading work orders and communicating with supervisors and auditors. The setting emphasizes cleanliness, precision, and collaboration in a small, focused team.

This is a Contract to Hire position based out of Placentia, CA.

The pay range for this position is $17.50 - $17.50/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully onsite position in Placentia,CA.

This position is anticipated to close on Aug 14, 2026.

Aerotek® Inc. provides staffing and services solutions in manufacturing, logistics, construction, aviation, facilities and maintenance. We provide the expertise, solutions and people required to rise to the challenges of North American industry. Headquartered in Hanover, Md., Aerotek operates a unified network of over 200 offices across North America, supporting more than 18,000 clients each year. Aerotek is an Allegis Group company, the global leader in workforce and business solutions. To learn more, visit: Aerotek.com | 1-888-AEROTEK.

Aerotek offers weekly pay, employee benefits including medical, dental & vision, life insurance, health advocacy and employee assistance programs, a 401(k) plan, and employee discounts.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance:
Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):
We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.

We know that finding work is hard, and finding meaningful work is harder. Aerotek connects 180,000+ light industrial and skilled trades workers with 14,000+ employers each year, helping our workers navigate an evolving labor market and find jobs that meet their goals, skills, and interests. Since 1983, we have provided a variety of career opportunities across North American industry – from short-term assignments at Fortune 500 companies where you can build your skills, to long-term opportunities where you can play a vital role in solving companies’ construction, manufacturing, and maintenance challenges. Our 1,500+ experienced recruiters across 250+ offices work relentlessly to put our workforce in a position to thrive. Let us rise to meet your challenges and put our people-are-everything spirit to the test as your career continues to grow.