Tree Worker II / Arborist

Presidio Trust


Full time

Sep 25

The Presidio Trust is seeking a Tree Worker / Arborist. The Presidio of San Francisco was once an Army base; it’s now a new kind of national park. The Presidio’s richly forested and designed setting is one of the Army’s most impressive accomplishments in landscape architecture. No other military installation in the nation has ever undertaken landscape planning on such a grand scale. A soldier standing on the Presidio’s windy ridgeline during the Civil War years would have written home about sandy dunes and the open prospect to the bay. Beginning in the 1880s, the Army planted a vast eucalyptus, pine, and cypress forest. Thousands of trees were planted along the Presidio’s ridges and entrance gates. Today, the 300-acres forest is the largest feature that contributes to the Presidio’s National Historic Landmark District. It also provides habitat for birds and other wildlife and respite from the city for human visitors.


Our ideal candidate is an experienced tree worker in all aspects of arboriculture and urban forestry which is able to fulfill the obligations of the Vegetative Management Plan.


This is a full-time role with benefits and a minimum pay of $48.52 per hour. Applications received by October 29, 2021, will receive first consideration. We are planning to hold structured interviews the week of November 8, 2021, a practical climbing skills evaluation the week of November 15, 2021, make a job offer in December, and set a work start date in December 2021.



·      Fells trees, clears land and prepares soil, plants, stakes and mulches with preparation, installation and maintenance for the establishment of new trees in reforestation sites

·      Prunes or removes trees and stumps using chain saws, handsaws, pole saws, pole pruners, stump grinders, wheel loaders, track loaders and various other tools and equipment

·      Climbs trees with ropes and harness both with and without the use of climbing gaffs and or works from an aerial lift to remove dead, dying, diseased, damaged and hazardous limbs or trees

·      Cuts, stacks, hauls, loads and chips brush, logs, stumps and other debris utilizing chipper, front end loader, trucks, trailers and other tools and equipment

·      Drives vehicles requiring a Class B driver's license hauling forestry equipment materials and supplies

·      Safely and proficiently applies the proper use of rigging for the removal of limbs and heavy wood utilizing slings, ropes, blocks, knots, lowering devices and other hardware and equipment

·      Performs routine maintenance and repairs on tools and equipment and maintain the shop and work areas in a clean, orderly, and safe condition

·      Monitors self and crew and public safety; verifies proper use of traffic control devices, sets out cones, barriers and warning signs and utilizes safe work practices for tree work as set out in both ANSI and OSHA standards

·      Responds to tree related emergency calls occasionally after hours and or weekends

·      Works with Volunteers on Forestry sponsored events

·      Cuts grass and tall weeds by use of string trimmers, brush cutters and high weed mowers

·      Responds as appropriate to questions from public, residents, tenants and Presidio staff using principles of good customer service; reports any problems or issues to the Forester

·      Other duties as assigned


Required Qualifications

•      High School diploma or general education degree (GED)

•      At least 5 years verifiable tree climbing experience as a qualified arborist as defined by ANSI Z133 (2107)

•      Valid State of California Driver's License Class B or higher (Class A within 6 months)

•      Ability to operate a variety of tree maintenance equipment and tools such as chain saws, block and tackle, chippers, stump grinders, aerial lifts

•      Knowledge of ropes, knots, rigging and hitches and climbing trees to a height of 100 feet or more

•      Knowledge of the qualities and characteristics of most trees found in the Presidio

•      Advanced knowledge of tree pruning and removal in accordance with ISA pruning standards and BMP's

•      Ability to work safely in compliance with ANSI and OSHA standards and established safety practices including aerial rescue

•      Ability to establish and maintain positive working relationships with co-workers and other Trust employees

•      International Society of Arboriculture (ISA) Certified Tree Worker Certification or Qualified Arborist as defined in ANSI Z133 (2017)

•      Qualified Incidental Line Clearance Certification or possession of comparable education, training, and on-the-job-experience as defined in ASNI Z133 (2017) Section 4.2.4

•      Proficient operation of heavy equipment including front end loader, skid steer, stump grinder, aerial lifts, and others as directed


Desired Qualifications

•      ISA Certified Arborist

•      Verifiable Aerial Lift Certification

•      Verifiable experience working with and around cranes for tree removal

•      Utility Arborist Certification

•      Municipal Arborist Certification

•      Board Certified Master Arborist Certification

•      TRAQ Certified

About the Presidio Trust Tree Crew

Over the past 18 years, our Tree Crew has planted 40 acres of young trees at 44 sites. In total, more than 5000 trees have been planted. The rejuvenation is especially visible along West Pacific Boulevard near Julius Kahn Park; at the Arguello Gate, where cypress trees planted just a few years ago already rise 30 feet; along Kobbe Boulevard, where wind studies have informed how trees should be placed on the Presidio’s blustery western edge; and near the World War II Memorial, where trees resistant to pine pitch canker are thriving. Trees that have been felled continue to contribute to the park’s vitality – they are used as compost to increase soil fertility, are milled for benches and fencing, and are immortalized through art, as seen in Andy Goldsworthy’s Presidio pieces Wood Line, Spire, and Tree Fall. The Trust’s reforestation effort has also contributed to an increase in the bird population. The Trust also welcomes the public to get involved by participating in a volunteer tree care program. More than 1,000 volunteers have contributed more than 5,000 hours caring for young Presidio trees.


Driver’s License Investigation & Review

This position requires a current, valid Driver’s License prior to starting work, and maintenance of a driver’s license throughout occupancy of the position. You will be subject to a driver’s license investigation as a New Entrant, and annual driver’s license reviews thereafter. An individual’s granting of an investigation and resulting reports thereafter is voluntary, however, employment is contingent upon the successful completion of a driver’s license investigation. The Trust may refuse to hire an individual, rescind an offer of employment, or review and terminate the employment of a current employee who does not successfully complete the driver’s license investigation.


The Presidio Trust is an equal opportunity employer, offering a competitive benefits package. To apply, download the employment application from our website at and email the completed and signed application to our email address listed on our website. 

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