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Additional Volunteer Opportunities


We have several volunteer opportunities in our Retail, Administration, Facilities and Development Departments. All of these positions are at our main hospital in the Marin Headlands. You can support the Center behind the scenes and contribute to its success!

Finance Volunteer - Transaction Accounting

The Finance Volunteer – Transaction Accounting volunteer position is responsible for processing accounting transactions, including accounts payable, cash disbursements, and bank deposits. Additional responsibilities include office administration for the organization broadly, as well as ad-hoc audit preparation. Responsibilities include:

Run Accounts Payable (75%) 

  • Receive mail and enter unapproved invoices in a pending batch
  • Distribute invoices to department personnel for approval and follow-up as necessary
  • Enter approved invoices, ensuring transactions are coded and processed accurately
  • Assist with mailing checks and filing paid invoices, when necessary
  • Create new vendor files, requesting appropriate supporting documentation
  • Assist with Account Payable related audit preparation, including pulling documentation in support of audit sample selections

Other Accounting (15%)

  • Batch bank deposits for earned revenue weekly
  • Enter cash receipt batches
  • File accounting documents, keeping filing systems organized and updated; manage records retention
  • Perform other duties as assigned, including ad hoc projects as requested by the Staff Accountant & Office Assistant or Accounting & IT Manager

Office Administration (10%)

  • Assist with troubleshooting issues with copiers, postage machine, shredder and other office equipment timely, as they arise 
  • Procure office supplies and maintain office supply area
  • Handle out-bound mail and distribute inbound mail when needed as a back up
To learn more about this opportunity and how to apply click the PDF link.

PDF Finance Volunteer - Transaction Accounting Description

Gift Shop and Guest Services Volunteer

The Gift Shop and Guest Services volunteer is a valuable role in assisting both the gift shop and entrance hall.

  • Greeting visitors entering the store
  • Engaging visitors in conversation about their visit and encouraging them to become supporters of TMMC i.e. AAS purchase, membership, volunteering
  • Informing visitors of the importance of making purchases (part of our funding base)
  • Assisting docents with tour sign-ups and payment processing.
  • Assisting other gift shop volunteers and staff with varied tasks i.e. folding, restocking, and straightening to maintain a welcoming and inviting store environment
  • Answer general and TMMC related questions from visitors
  • All other tasks as needed to provide the best visitor experience

PDF Gift and Guest Services Volunteer Description

Administrative Support Volunteer

Volunteer in a comfortable, friendly environment; enhance your office skills; boost your resume; and feel good knowing that you’re supporting a good cause.

You will assist the Administrative offices with a variety of administrative, database, and communication tasks. Duties include, but are not limited to:

  • Collating and mailing acknowledgement letters
  • Photocopying documents and filing of paperwork
  • Data entry and data clean-up
  • Entering class RSVP lists into the Raiser’s Edge database
  • RSVP reconciliation and follow-up
  • Collecting and mailing brochure requests
  • Making follow-up and thank you calls to donors
  • Enter mailing and solicitation actions in Raiser’s Edge database
  • Create mailing labels and help with large and small mailing projects
  • Help organize, gather and store Advancement storage items before events, fairs, etc

PDF Administrative Support Volunteer Description

Facilities and Life Support Systems Volunteer

Help facility staff with daily operations and learn valuable trade skills.

Duties include, but are not limited to:

  • Assisting our Life Support Systems and Facilities staff with regular maintenance and repair duties
  • Maintaining TMMC grounds, structures and life support equipment
  • Supporting other TMMC department’s daily operations

Prefered Qualifications

  • Previous experience working building maintenance, construction, wastewater treatment or another relevant trade
  • The ability to do physical work and be comfortable working in a shop environment around heavy machinery 

PDF Facilities Volunteer Description

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