Executive Assistant

Turn Your Passion for the Outdoors into a Career!

Do you come alive on the trail? Love hiking, birdwatching, camping, or simply spending your days surrounded by nature? If the idea of wearing hiking boots to work, spotting wildlife during your lunch break, and being part of a collaborative, mission-driven team excites you, then Boyce Thompson Arboretum may be the perfect place for you.

Founded in 1924 by mining pioneer William Boyce Thompson, Boyce Thompson Arboretum is Arizona's oldest and largest botanical garden. Situated on 374 breathtaking acres at the base of Picket Post Mountain and bordering the Tonto National Forest in Superior, Arizona, the Arboretum offers a truly unique work environment unlike any other.

Our living collection showcases extraordinary plants from the world's deserts and arid regions alongside the native beauty of the Sonoran Desert. Every day brings opportunities to experience nature firsthand, with miles of scenic trails, spectacular mountain views, and abundant wildlife throughout the grounds. It's not unusual to encounter javelina, bobcats, roadrunners, hummingbirds, and a variety of native and migratory birds while working and exploring the Arboretum.

As an independent nonprofit organization, we're united by a shared passion for conservation, education, horticulture, and creating meaningful experiences for our visitors. We value teamwork, stewardship, curiosity, and a deep appreciation for the natural world.

Located just 30 minutes from Mesa and one hour from downtown Phoenix, Boyce Thompson Arboretum offers the opportunity to build a rewarding career while enjoying the beauty, adventure, and tranquility of the Arizona outdoors.

If you're looking for more than just a job—and want to be part of a community that inspires connection with nature every day—we'd love to hear from you.

The Boyce Thompson Arboretum is seeking an Executive Assistant that is passionate about working for a nonprofit and working with a dedicated team of people. The Executive Assistant reports to the Executive Director and is responsible for providing comprehensive executive level administrative support and acting as a liaison to the Board of Directors. The incumbent will provide support, coordination and oversight of administrative processes for the Executive Director, Sr.

Leadership Team and the Arboretum. The Executive Assistant prioritizes, organizes, coordinates and oversees the Executive Director’s administrative and office details, tasks and functions ensuring effective and efficient office operations while maintaining confidentiality of a variety of information. This position acts as a liaison for the Board of Directors and provides administrative support for Board Committee meetings and Board meetings. In addition, the Executive Assistant serves as a liaison with Arboretum staff, board members, donors, community members, government agencies and external partners.

Project Management is an important aspect of this position, and the Executive Assistant may be responsible for providing oversight and support for a variety of projects with minimal supervision.

• Responsible for managing the Executive Director’s calendar, correspondence and electronic communication; drafts correspondence and ensures timely response; extends invitations on behalf of the Executive Director;
• Acts as a liaison to the Board of Directors and provides administrative support to all meetings and activities. This includes meeting set up, correspondence, minutes, maintaining Board contact lists and uploading documents to the Board portal.
• Provides administrative support that includes filing both in paper and electronic systems, maintaining databases and electronic spreadsheets and other basic office tasks as needed.
• Prepares the Executive Director for meetings, speaking engagements and events. Plans events as needed that support the activities of the Executive Director and the Arboretum.
• Provides planning, organization, and administrative support for special projects/assignments.
• Take on special projects and drive them to completion.
• Assist the HR Generalist and Safety Officer with…