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On-Call Custodian


This position reports to the Custodial Supervisor/Manager and is responsible for the general cleanliness of the museum.  Applicants must be available to work any assigned shifts.



Proper operation and maintenance of custodial equipment including but not limited to:

  • Floor machines, i.e. vacuums, scrubber
  • Mops and mop buckets
  • Floor, wall, window squeegees
  • Ladders, step stools

Basic understanding of safety issues related to custodial work

  • Safety equipment for personal safety
  • Building occupant safety
  • Public safety

Clean and maintain all custodial stations: classrooms, office space, restrooms, entrance ways, work spaces, parking lots and food service areas

  • Collect trash/recycling/compost and dispose in proper receptacles
  • Dusting, high, intermediate and low areas
  • Sweeping, dust mopping, dry mopping, damp mopping, vacuuming
  • Shampooing, scrubbing, steam cleaning, stripping, waxing and sealing
  • Refilling supplies; paper dispensers, soap dispensers
  • Cleaning and disinfecting urinals, commodes, wash basins, partitions, windows and walls.
  • Use custodial equipment to carry out job responsibilities
  • Respond quickly to custodial messages
  • Additional custodial duties as required.



  • 6 months custodial experience and/or successful completion of basic custodial training
  • Ability to lift and carry 25 pounds
  • Ability to bend and kneel, crawl, reach, move from place to place
  • Ability to climb and work on ladders
  • Ability to read, write and follow simple oral and written instructions



Open until filled


This is an on-call position that does not includes benefits. Please, no phone calls in regards to the job.

The Exploratorium is committed to providing equal employment without regard to race, color, religion, sex, sexual orientation, national origin, age, disability, ancestry, genetic information, citizenship, marital status, pregnancy, veteran’s status or any other class protected by applicable law.


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