Cleaning Jobs in California
Cleaning jobs in California are consistently in demand, with openings concentrated in commercial facilities management, healthcare environmental services, hospitality, and residential property maintenance at every level from entry-level custodian to lead supervisor. Los Angeles, San Francisco, and San Diego account for the heaviest volume of postings, where large employers like ABM Industries, Aramark, and Acco Brands Environmental Services maintain steady California operations. The most sought-after specialties include medical-grade cleaning, industrial sanitation, and green cleaning certification. Find a role that fits below and apply directly.
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INTRODUCTION
Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries - AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every chip. We are the rare unicorn that has grown fast and profitably. We received $515m in funding and are executing a multi-$B expansion plan for one of the greenest forms of tech manufacturing: converting greenhouse gas into diamond wafers using zero-emission energy.
Diamond Foundry is seeking a skilled Technician to join our Surface Finishing team in Fremont, CA. As a Wafer Cleaning Technician in the Research and Development group, you will be joining a small group focused on quality, efficiency, and cost in Single Crystal Diamond wafer cleaning development. This position supports the engineering effort through the preparation and operation of wafer cleaning equipment and related metrology tools. The incumbent will be expected to work in a normal 5-day per week shift.
Responsibilities
- Assists process engineering in developmental and improvement projects on cleaning and inspection of diamond and Si wafers.
- Cleaning of diamond/Si wafers and samples.
- Inspection and measurements of the Post-Cleaning wafers with optical microscope, WLI, etc., metrology tools.
- Set up, operate, and clean wafer cleaning, polishing, and packaging equipment, including preparing cleaning chemicals and CMP slurries.
- Write and improve SOPs, train technicians, and update the system and stakeholders on backlog and progress. Enforce cleanroom protocols.
REQUIREMENTS
- Associates or bachelor's degree relevant to chemistry, chemical engineering, and/or materials science and engineering.
- Minimum 2 years' experience working in a cleaning and/or polishing environment.
- Knowledge of surface measurement/inspection techniques.
- Experience with cleaning and polishing equipment.
- Attention to detail and good hand-eye coordination.
Diamond Foundry believes in supporting our employees from the workplace to their personal and home life. We provide eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Perks include employee discounts to VRAI. Our benefits begin as early as your first day of employment. Medical and vision coverage are retroactive to your start date, while dental and voluntary benefits take effect once you’ve completed your enrollment.
Physical Requirements
- Use appropriate PPE and follow all safety policies, practices, and procedures.
- This position will often: Sit, stand for long periods, walk, grasp, reach with hands and arms, lift below and above shoulders, bend, twist at the waist, climb, balance, stoop, squat, kneel, crawl, talk, hear, see, use fine finger manipulation, and complete repetitive motions.
- Some tasks may require the use of ladders or stairs.
- Some tasks may require driving or the use of foot controls.
- Lift/carry and push/pull up to 50 pounds.
This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. If E-Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment. Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
EQUAL OPPORTUNITY EMPLOYER
Diamond Foundry is an Equal Opportunity Employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected factor under federal, state or local law.
Diamond Foundry Inc. is committed to operating in full compliance with all applicable state and federal laws. Our commitment extends to ensuring that our manufacturing and engineering departments adhere to the highest standards of legal and regulatory compliance. Additionally, these departments may have specific physical requirements to ensure the safety and efficiency of our operations. We prioritize the well-being of our employees and strive to create a work environment that promotes both legal compliance and the optimal functioning of our manufacturing and engineering processes.
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Find Cleaning JobsCleaning Jobs by City in California
Where California roles are concentrated, by current openings.
Cleaning Job Market in California
A snapshot from current California openings, updated as new roles post.
Who's Hiring
- Panera Bread61

- McDonald's8

- American Golf Corporation7

- RH6

- Grand Pacific Resorts4

Top Industries Hiring
- Food & Beverage75
- Hospitality & Tourism21
- Sports & Recreation10
- Retail6
- Consumer Goods4
What California Employers Look For
The qualifications that appear most often in cleaning jobs across California.
- Prior commercial or residential cleaning experience in a professional setting
- Physical ability to lift, stand, and perform repetitive cleaning tasks for extended periods
- Knowledge of cleaning chemicals, dilution ratios, and safe handling procedures
- Reliable transportation to reach client sites across California metro areas
- Ability to pass a background check required by California commercial clients
- Basic English communication skills for interacting with supervisors and clients
Cleaning Jobs in California: Frequently Asked Questions
How do you become a cleaning in California?
California does not require a state-issued license for most cleaning roles, but employers strongly prefer candidates with verifiable experience and safety training. Many commercial and healthcare cleaning positions require completion of an Occupational Safety and Health Administration hazard communication course. Green cleaning certifications recognized by the Carpet and Rug Institute or ISSA, the worldwide cleaning industry association, give candidates a measurable edge when applying to facility management and healthcare accounts across California.
Which companies hire cleanings in California?
Employers hiring cleanings in California right now include Panera Bread, McDonald's, and American Golf Corporation, based on current listings on Migrate Mate as of June 2026. California's large healthcare systems, hotel groups, and commercial real estate portfolios drive consistent year-round demand from both regional contractors and national facility services companies operating across the state.
Which California cities have the most cleaning jobs?
Los Angeles, San Francisco, and Carlsbad have the most cleaning openings in California right now. Los Angeles anchors the list because of its scale across hospitality, healthcare, and commercial real estate, while San Francisco's dense office and medical campuses sustain steady demand, and San Diego's military installations and resort industry support a large permanent cleaning workforce.
Are there remote cleaning jobs in California?
Yes, but they're rare. About 1% of cleaning openings tied to California are remote or hybrid as of June 2026, reflecting the hands-on nature of most cleaning work. The small share of remote roles tends to involve cleaning operations management, scheduling coordination, or quality-assurance auditing rather than direct service delivery.
How can I get hired as a cleaning in California with little or no experience?
The most realistic entry path is applying directly to commercial cleaning contractors that hire for part-time or overnight shift roles, which typically require no prior experience and provide on-the-job training. Large California facility services employers run paid onboarding programs where new hires shadow experienced cleaners before working independently. Completing a free ISSA cleaning technician course online and applying to building service porter or janitorial associate roles at California hospital systems or hotel chains are concrete first steps that employers recognize.
Where can I find and apply to cleaning jobs in California?
You can find and apply to cleaning jobs in California on Migrate Mate, which lists current California openings updated regularly. Search the listings for roles that match your experience level and preferred location, then apply directly to the positions that fit.
See All 126+ Cleaning Jobs in California
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