Job Posting: Custodian Supervisor I

CA Science Center

JC-531188
-
Custodian Supervisor I
CUSTODIAN SUPERVISOR I

$3,774.00 - $4,729.00 per Month
New to State candidates will be hired into the minimum salary of the classification or minimum of alternate range when applicable.

Final Filing Date: Until Filled

Job Description and Duties

Work4CA: Start Your State Career


The first review of applications will take place on September 18, 2026, and every Friday thereafter until filled.

Please Note: All information provided on the STD 678 application is subject to verification at any time during the recruitment process, hiring process, and even after employment has been offered or begun. Incomplete or vague information may delay the review process or impact your eligibility.

To ensure your application is complete and accurately reflects your qualifications, please make sure to include the following:

Detailed Duties: For each position listed, clearly describe the specific duties you performed.
Specific Dates: Provide the exact start and end dates (month/day/year) for each job.
Hours Worked: Indicate the number of hours worked per week for each position, including part-time work.

While not required, a resume is strongly encouraged to provide additional details about your skills and experience. Resumes will not replace the required STD 678 Employment Application.

This position is located in Los Angeles.

This is an exciting, opportunity to join our team at the California Science Center (CSC), a world-class science museum, that develops and features award-winning exhibits and internationally renowned education programs. The Science Center's workforce includes executive, managerial, supervisory, and administrative classifications, however, rank and file facility maintenance and skilled trades represent approximately fifty-one percent (51%) of its civil service workforce. We are seeking a Custodian Supervisor I to join our day shift team.

The duties of the Custodian Supervisor I include, but are not limited to, coordinating and leading the activities of a crew of 5-7 Custodian I staff, including maintaining and cleaning offices, restrooms, buildings, and other assigned areas, ensuring all assigned areas are clean and orderly throughout State property; and operating a variety of cleaning tools and equipment. The Custodian Supervisor I is the first point of contact for all personnel related tasks, including timekeeping, performance management, health and safety, and training.

Apply today to join our team! We especially encourage veterans, women and persons with disabilities to apply. We actively cultivate an inclusive atmosphere that embraces individuals from diverse backgrounds, cultures, and life journeys, empowering them to excel and flourish. We enthusiastically welcome your distinctive contributions to our organization and the meaningful work we undertake.

To attain list eligibility, you must take the Custodian Supervisor I exam located at the link here: 

https://calcareers.ca.gov/CalHrPublic/Exams/ExamBulletin.aspx?ExamControlId=1261


Some classifications offer an alternate exam option for persons with certified disabilities called the Limited Exam and Appointment Program (LEAP). To be eligible to take a LEAP exam, you must certify through California Department of Rehabilitation (DOR). To take the LEAP Custodian I exam please click the link here:

https://calcareers.ca.gov/CalHrPublic/Exams/ExamBulletin.aspx?ExamControlId=2061


Apply today to join our team! We especially encourage veterans, women and persons with disabilities to apply. Visit our website at https://californiasciencecenter.ca.gov/ to learn more about us.

You will find additional information about the job in the Duty Statement.

Working Conditions

PLEASE REFER TO DUTY STATEMENT IN THE WORK ENVIRONMENT SECTION.

Minimum Requirements

You will find the Minimum Requirements in the Class Specification.

Additional Documents

Position Details

Job Code #:
JC-531188
Position #(s):
314-301-2002-009
Working Title:
Custodian Supervisor I
Classification:
CUSTODIAN SUPERVISOR I
$3,774.00 - $4,729.00 A
New to State candidates will be hired into the minimum salary of the classification or minimum of alternate range when applicable.
# of Positions:
1
Work Location:
Los Angeles County
Telework:
In Office
Job Type:
Permanent, Full Time
Work Shift:
8:30am - 5:30pm
Work Week:
Tuesday - Saturday

Department Information

The California Science Center, a prominent state scientific and technological museum, is located South of Downtown Los Angeles at Exposition Park is open to the public seven days a week, 362 days per year, with free general admission to its permanent exhibit galleries. One of California’s premier family destinations, it features award-winning exhibits that aim to inspire science learning and the permanent home for the Space Shuttle Endeavor.

Mission: The California Science Center aspires to stimulate curiosity and inspire science learning in everyone by creating fun, memorable experiences because we value science as an indispensable tool for understanding our world, accessibility and inclusiveness and enriching people’s lives.

www.californiasciencecenter.ca.gov

Please note: In July 2025, the State of California implemented the Personal Leave Program (PLP) 2025. This program temporarily reduces employees’ monthly base pay in exchange for paid leave credits. This position is subject to PLP 2025 and will have a monthly base pay reduction of 3% in exchange for 5 hours of leave credits through June 2027. The salary ranges shown on this job posting do not reflect the salary reduction.

Special Requirements

The selected candidate will be required to submit to pre-employment hiring clearances which include the following: Department of Justice Livescan fingerprint and medical testing for tuberculosis, complete physical and drug testing, within three business days of receipt of a conditional offer of employment.

Application Instructions

Dates printed on Mobile Bar Codes, such as the Quick Response (QR) Codes available at the USPS, are not considered Postmark dates for the purpose of determining timely filing of an application.

Final Filing Date: Until Filled

Who May Apply

Individuals who are currently in the classification, eligible for lateral transfer, eligible for reinstatement, have list or LEAP eligibility, are in the process of obtaining list eligibility, or have SROA and/or Surplus eligibility (please attach your letter, if available). SROA and Surplus candidates are given priority; therefore, individuals with other eligibility may be considered in the event no SROA or Surplus candidates apply.

Applications will be screened and only the most qualified applicants will be selected to move forward in the selection process. Applicants must meet the Minimum Qualifications stated in the Classification Specification(s).

How To Apply

Complete Application Packages (including your Examination/Employment Application (STD 678) and applicable or required documents) must be submitted to apply for this Job Posting. Application Packages may be submitted electronically through your CalCareer Account at www.CalCareers.ca.gov. When submitting your application in hard copy, a completed copy of the Application Package listing must be included. If you choose to not apply electronically, a hard copy application package may be submitted through an alternative method listed below:

Address for Mailing Application Packages

You may submit your application and any applicable or required documents to:

CA Science Center
N/A
Attn: State Human Resources
700 Exposition Park Drive
Los Angeles, CA 90037

Address for Drop-Off Application Packages

You may drop off your application and any applicable or required documents at:

CA Science Center
N/A
State Human Resources
700 Exposition Park Drive
Los Angeles, CA 90037
Loading Dock mail attendant in sealed envelope labeled: CONFIDENTIAL/STATE HR
08:00 AM - 03:30 PM

Required Application Package Documents

The following items are required to be submitted with your application. Applicants who do not submit the required items timely may not be considered for this job:

  • Current version of the State Examination/Employment Application STD Form 678 (when not applying electronically), or the Electronic State Employment Application through your Applicant Account at www.CalCareers.ca.gov. All Experience and Education relating to the Minimum Qualifications listed on the Classification Specification should be included to demonstrate how you meet the Minimum Qualifications for the position.
  • Resume is optional. It may be included, but is not required.
Applicants requiring reasonable accommodations for the hiring interview process must request the necessary accommodations if scheduled for a hiring interview. The request should be made at the time of contact to schedule the interview. Questions regarding reasonable accommodations may be directed to the EEO contact listed on this job posting.

Desirable Qualifications

In addition to evaluating each candidate's relative ability, as demonstrated by quality and breadth of experience, the following factors will provide the basis for competitively evaluating each candidate:

• Professional cleaning experience in a lead or supervisor capacity, including experience assigning, coordinating, monitoring, or reviewing the work of custodial staff.
• Knowledge of custodial practices, methods, materials, supplies, equipment, and techniques, including the safe and effective use of cleaning chemicals, tools, and janitorial equipment.
• Knowledge of workplace safety practices and procedures, applicable to custodial operations, including the proper handling, storage, labeling, and disposal of cleaning chemicals and hazardous materials.
• Ability to plan, organize, prioritize, assign, and monitor custodial work to ensure facilities are maintained in a clean, safe, sanitary, and orderly condition, and service standards are met.
• Ability to lead, train, coach, and provide direction to custodial employees, including communicating work expectations, demonstrating proper work methods, providing constructive feedback, and addressing performance or work-quality concerns.
• Ability to use tact, diplomacy, sound judgment, and professionalism when communicating and working with customers, co-workers, management, vendors, and other government agency representatives.
• Demonstrated reliability and dependability, including consistent attendance and punctuality.
• Strong interpersonal skills and experience working in a team environment, with the ability to establish and maintain effective working relationships.
• Experience safely and effectively operating a variety of janitorial and custodial equipment.
• Ability to read and interpret documents such as safety rules, Safety Data Sheets (SDS), operating and maintenance instructions, product labels, policies, procedure manuals, schedules, and other written materials related to custodial operations.
• Ability to work within demanding time frames, manage competing priorities, and adjust work assignments as operational needs change.
• Ability to maintain a professional, respectful, and services-oriented approach when interacting with employees, customers, co-workers, management, vendors, and other government representatives.

Benefits

Benefit information can be found on the CalHR website and the CalPERS website.

California Science Center employees enjoy unique benefits, such as employee discounts on merchandise, concessions and summer camp, exhibit preview days, and reciprocal admission to local museums.

Free parking is available to employees. The building is within close distance to public transportation, including the Metro Expo Line and a variety of restaurants.

ELIGIBILITY AND ADDITIONAL INFORMATION

To be considered for the job vacancy you MUST satisfy one of the following requirements:

List Eligibility – Successfully complete the civil service exam for the classification (see Examination Information section below).

Transfer Eligibility – Must have current employment with the State of California in the same classification or in a classification that is comparable. If in a different classification, you must meet the minimum qualifications (see Minimum Qualifications section and associated links above).

Reinstatement Eligibility – Previously obtained permanent employment with the State of California in the same classification or in a classification that is comparable. If in a different classification, you must meet the minimum qualifications (see Minimum Qualifications section and associated links above).

Examination Information:
To become 'list eligible' for consideration, interested candidates must successfully pass a civil service exam. You may apply and take the exam online at CalCareers, copy or click on the following link:  

*MINIMUM QUALIFICATIONS will be verified prior to being scheduled for an interview. Please refer to Minimum Qualifications on the bulletin when applying.

Custodian Supervisor I Exam

 

Custodian Supervisor I LEAP Exam


*Applications with "SEE RESUME" or "SEE ATTACHED" will not be considered.
*Faxed or emailed applications will not be accepted.

Equal Opportunity Employer

The State of California is an equal opportunity employer to all, regardless of age, ancestry, color, disability (mental and physical), exercising the right to family care and medical leave, gender, gender expression, gender identity, genetic information, marital status, medical condition, military or veteran status, national origin, political affiliation, race, religious creed, sex (includes pregnancy, childbirth, breastfeeding and related medical conditions), and sexual orientation.

It is an objective of the State of California to achieve a drug-free work place. Any applicant for state employment will be expected to behave in accordance with this objective because the use of illegal drugs is inconsistent with the law of the State, the rules governing Civil Service, and the special trust placed in public servants.

Application Methods:
Electronic (Using your CalCareer Account)
By Mail
Drop-off
Print Job