Microscope Assembler Jobs in Riverside, CA (NOW HIRING)

ENTRY LEVEL ASSEMBLER ROLES

Job Title: Cleanroom Assembler

Job Description

This role focuses on precision cleanroom assembly of catheter components used in the brain to help prevent aneurysms. You will spend most of your time working under a microscope, using small hand tools to assemble very small parts such as coiling wire and small tubing. Consistent attendance, attention to detail, and the ability to work carefully for extended periods are critical to success in this position.

Responsibilities

• Assemble small catheter components in a cleanroom environment, following detailed instructions and quality standards.
• Work under a microscope for the majority of the shift to handle and assemble very small parts such as coiling wire and small tubing.
• Use small hand tools accurately and safely to perform delicate assembly tasks.
• Maintain high levels of quality and precision in all assembly work to support safe, reliable medical devices.
• Follow all cleanroom protocols, including gowning procedures and cleanliness standards.
• Adhere strictly to attendance expectations, arriving on time and working scheduled hours consistently.
• Work long shifts as needed, including extended hours and multiple days per week, while maintaining focus and performance.
• Participate in and successfully complete a hand assessment test to demonstrate fine motor skills and dexterity.
• Collaborate with coworkers and communicate effectively while maintaining productivity and quality.
• Follow supervisor instructions and be open to feedback and additional training to improve skills and performance.

Essential Skills

• Ability to work under a microscope for long periods of time with strong visual focus and attention to detail.
• Comfort and proficiency using small hand tools for fine, delicate assembly work.
• Ability to work long hours while maintaining accuracy, quality, and concentration.
• Strong commitment to reliable attendance and punctuality, especially during the first 90 days of employment.
• Ability to follow detailed instructions and cleanroom procedures consistently.
• Capability to pass a hand assessment test demonstrating fine motor skills and manual dexterity.
• Previous cleanroom or manufacturing experience is highly desired.

Additional Skills & Qualifications

• Open to entry-level candidates who can demonstrate strong hand skills and pass the hand assessment test.
• Prior experience in a cleanroom environment or similar high-precision manufacturing setting is a plus.
• Willingness to learn new processes and techniques and to improve over time through training and feedback.
• Ability to work effectively as part of a team and maintain positive working relationships.
• Strong focus on quality, consistency, and performance in a production environment.

Why Work Here?

The company offers a strong long-term opportunity with the potential to transition to full-time employment after successfully completing the required hours and demonstrating good attendance, quality, and performance. Once hired on permanently, employees receive comprehensive benefits, including full medical coverage for themselves and partial coverage for their immediate family, a 401(k) plan, paid time off, and holiday pay. The leadership values effort, dependability, and a willingness to learn rather than expecting new hires to be experts on day one, providing a supportive environment for growth and development.

Work Environment

You will work in a controlled cleanroom environment and must wear full gowning in accordance with cleanroom standards. The culture encourages communication and positive relationships among team members as long as quality and productivity remain high. Supervisors are understanding and provide multiple chances for improvement when they see strong effort and reliable attendance. The typical schedule is on second shift, Monday through Saturday, from 3:30 p.m. to 12:00 a.m. Most employees currently work around 40 to 45 hours per week, with the possibility of working up to 10 hours a day and 6 days a week depending on production needs.

Job Type & Location

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

Pay and Benefits

The pay range for this position is $19.00 - $21.00/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)

Workplace Type

This is a fully onsite position in Irvine,CA.

Application Deadline

This position is anticipated to close on May 29, 2026.

About Aerotek

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 meets 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 solving for 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.

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.