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Passionate about trees?
Join our team of Tree Health Specialists!


Well, won’t you look at that. You stumbled on your next career! How do you know it’s your next career, you say? Well, do you love trees & beautiful gardens? Do you love nature? Do you love teaching people about trees & consider yourself a tree-thusiast? If you answered yes, then Sims Tree Health Specialists, Inc. might be the perfect place to make your career. We are looking for personable, talented, outgoing professionals with a passion for trees to join our team!



The family of tree preservationists & Arborists at Sims Tree Health Specialists, Inc. is seeking someone just like you to serve as our next Tree Health Care Specialist/Arborist! You’ll have the opportunity to grow with us (see what I did there?) & visit the homes of our amazing customers where you will develop a relationship with them & work together with them in developing & executing a tree health care plan. The ideal candidate is detail oriented, loves to teach, & has familiarity with customer service.


  • A minimum of 2 years in the green industry. Example of acceptable experience includes (but is not limited to):

    • ​Tree care companies • Nurseries • Landscape companies • Municipalities • State forestry agencies • Utility companies • Academic arboriculture/horticulture departments (for instructors) • Horticulture/extension programs (for advisors) • Consultancies • Pest control providers (for advisors and applicators)

  • A passion for nature, the environment, & the outdoors

  • Ability to pass a criminal background check & drug test

  • Interest in working outdoors, unsupervised, year-round in all weather conditions

  • Ability to obtain a Qualified Applicator License & ISA Arborist Certification within 3 months of hire.

    • We will pay for the cost of the exam & help you prepare!

  • Valid driver's license & clean motor vehicle record

  • Ability to evaluate, monitor, & treat insect & disease problems.

  • Ability to operate, calibrate, & maintain  equipment (i.e. pumps, mixing equipment, etc.).

  • Ability to drive automatic transmission pickup trucks similar to F250 

  • Commitment to timely & quality customer service. Must be able to work independently as well as assist other operations when needed.

  • Good communication skills: report writing, professional presentation is a must

  • Ability to walk long distances across various surfaces such as flat, dry, wet, slippery, uneven, rough, steep terrain, hills & slopes 



  • Safety first! You’ll start your day prepping your noble steed (company provided truck) by checking for safety &  ensuring that you have the supplies & materials needed for the day. 

  • Now onto facing the battles of traffic! Your safe driving skills & mobile GPS will help get you safely to & from the job. 

  • You’ve arrived at your first stop & greeted the customer with a respectful “Hello!”  You’ll follow the customer to their trees & begin putting your mad Arborist skills to the test! You’ll consult on the tree(s) for signs of pest, disease, or fungi. You’ll also observe the surrounding trees for anything the customer may have missed. 

  • You'll let the customer know your findings & provide them with a care plan that will include treatment options & costs. Once you’ve received approval you'll mix & apply the materials that may include various forms of pesticides & fertilizers while wearing PPE & following safety procedures, label instructions, & state laws.

  • The treatment is now complete & now it's time to thoroughly communicate (with detail) your findings & treatment plan by noting it on your mobile CRM app. This allows your office team to set up your customer & their tree’s health care plan in the CRM. You’ll collect payment & head to your next job.

  • After your jobs are complete, you'll head back to headquarters. Upon arrival, you'll ensure that all equipment is properly cleaned & returned & that any necessary repairs or maintenance issues are reported.

  • Then you will visit your station inside the office to return any messages from past customers needing your advice & noting your conversation in that customer’s account. Then look at the scheduled jobs you have for the next business day & create an efficient route for the next day . You'll then contact the next day’s customers with a 2-hour time frame of arrival. 

  • Now it's time to head back home! Congratulations on another successful day of saving trees!


Starting pay is between $20-$30/hour depending on experience and qualifications. Once a client base is established and you begin performing routes on your own, pay will become commission based. ISA Certified Arborists earn 40% commission on consultations and 25% commission on treatments. ISA Certified Arborists have the opportunity to earn up 6 figures per year! 


  • Vacation and sick pay

  • Health, Vision, and Dental Insurance (No need to wait! These benefits will kick in the month following your start date)

  • Employee discounts

  • Paid training


Most jobs are performed Monday - Friday between the hours of 6:00 AM and 2:00 PM. On rare occasions, there may be jobs that are required to be performed at night or on weekends. Team members have the freedom to dictate their schedule and how much they want to work. 


This position requires standing for long periods; walk long distances on uneven terrain; driving safely to multiple stops each day; using hands to handle or feel objects, tools or controls; pulling large amounts of hose up to 400 feet; reach with hands and arms; kneel, crouch, or crawl; frequently lift and/or move up to 30 pounds for an extended amount of time and occasionally lift and/or move up to 65 pounds; sit for long periods of time while traveling to and from job site to job site. Headquarters are located on a gated 6-acre botanical garden where farm equipment and tools are utilized. Team members are welcome, and encouraged, to utilize the gardens during their breaks.

Team members would drive down a quarter-mile long dirt road to access a dirt parking lot on a daily basis. A locked shed on the property houses the materials necessary for our tree preservationists to perform tree care services. Occasionally, the trees and plants on the property are treated with these materials (both organic and/or traditional). Team members would be notified of these treatments and any measures taken to ensure their safety. Team members must be good with dust, dirt, mud, plant pollen, and animal dander. The Sims family resides on the property and have dogs that have full access to the gardens and come inside the office. The parking lot serves as the sole area for parking for all events and classes. Occasionally team members may be asked to park on a different part of the property to conserve space for larger events.

Our Arborists and Tree Preservationists work with chemicals on a daily basis. Most of these chemicals are listed in the “Caution” category, similar to those of traditional household cleaners. However, after a full day of treatments, team members occasionally come into the office with residual smells from materials used throughout the day. For those that have severe allergies to dust, plant pollen, animal dander, and/or chemicals (categorized similarly to those in traditional household cleaning products) this may not be a suitable working environment for you.


Sims Tree Health Specialists (THS), Inc. is a family owned and operated company that have been dedicated to the preservation, education, improved health, and safety of trees since 1972. We are the house-hold name when it comes to tree health care.

The Sims family have not only become known for their quality tree health services, but also as educators. In 1996, the Sims family started the Sims Tree Learning Center (TLC), a 6-acre botanical garden and research facility sponsored by Sims Tree Health Specialists Inc. The facility houses the Sims THS office as well as multiple types of gardens including a cactus and succulent garden and one of the largest collections of Palms in the Inland Empire. The Sims family homes are also located on the property.

Our new generation of leadership is looking to empower our team members through a “Decentralized Command” style of leadership. We look to our team members to utilize their skills to further the company goals and objectives. Go-getters, this is the place for you!

Leadership believes that a strong team is the creator of success and that both big and small successes should be celebrated and rewarded. When opportunities for improvement come along, coaching and teaching are excellent in progress and understanding.

It is important that our team members are empowered to continuously grow and learn through hands-on experience with an understanding that trial and error is a positive method of development. Self-taught skills, research, and ideas are welcomed in all aspects of the organization, regardless of the relation to their direct department or position. Our main goal is for our team members to enjoy coming to work and feel like they are achieving their goals.

As a team who respects the past yet is motivated to make our own mark on the industry, we are a fun bunch who believe work should be both rewarding and enjoyable.





We look forward to working with you!

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