Unlimited Potential is seeking a Part-time Spanish Instructor to expand our Urban Nature Arboriculture Training Program.

About Unlimited Potential
Unlimited Potential is a community-based organization located in South Phoenix. We meet the needs of the community we serve and focus on students within those neighborhoods.

We partner with Arizona State University’s Walton Sustainability Solutions Service Urban Nature Initiative to offer a community-based trade school that provides expert instruction, field training, internship opportunities, and pathways to careers in urban forestry.

Position Summary
Under the supervision of the Director of Healthy Communities, the Instructor will provide a Spanish-preferred Arborist Training Program for upcoming cohorts.

Role and Responsibilities

• Serve as the primary teacher and mentor for a cohort of up to  10 students during a 10-week course, including labs with Bartlett Tree Experts (total of 120 hours).
• Support the integration and ongoing development of the Urban nature Arborist Training Program. 
• Collaborate with Unlimited Potential’s Adult Education team to identify curriculum improvements,  training opportunities and potential barriers for students.
• Provide ongoing guidance, mentorship, and support to cohort members.
• Work collaboratively with grant partners, community leaders, and residents to promote participation in urban forestry career pathways.

Qualifications and Education Requirements

• 2–3 years of experience in arboriculture, or a combination of education and practical arboricultural experience.
• Experience is demonstrated  through study, teaching, professional experience, and/or certification (e.g., Arizona
• Landscape Contractors Association, International Society of Arboriculture, or Association of Professional Landscape Designers).
• Spanish fluency required
• Experience in training, coaching, or mentoring within arboriculture or a related field.
• Ability to prepare, organize, and deliver instruction effectively to adult learners.
• Ability to work collaboratively across teams and demonstrate enthusiasm for supporting urban forestry initiatives.
• Strong communication, problem-solving, organizational, and time-management skills.
• Capable of working independently and managing multiple priorities.
• Availability for two morning classes and Saturday field experience days.

Additional Preferred Skills

• Experience working in multicultural environments.
• Familiarity with Google Workspace or Microsoft Office Suite (Word, Excel, PowerPoint).

Working Environment
Some activities are performed in a climate-controlled office involving extended periods of sitting, standing, or walking. Requires visual acuity and manual dexterity for daily computer use and light physical activity (lifting up to 50 pounds). Field activities may involve exposure to outdoor desert conditions, weather elements, insects, fertilizers, herbicides, and uneven terrain. Regular use of arborist equipment and tools (e.g. printers, saws, ropes and  saddles). Use of hearing protection and other Personal Protective Equipment (PPE) is required.

Supplemental Information
Start Date: January 2026 (Cohort 3 of the Arboriculture Training Program).
Hours/Location: Part-time position; approximately 120 hours over 10 weeks at G. Benjamin Brooks Non-Profit Campus.
Salary: $50 per course hour of teaching. Part-time instructors are compensated for an additional 60 minutes per instructional hour for preparation and office hours. Additional hours will be approved as needed. 
Close Date: Open until filled.
Interviews: Selected candidates will be contacted via email to schedule an interview.

Application Instructions: 
Please submit a cover letter and resume to info@unlimitedpotentialaz.org.
Questions may be directed to ttrahan@unlimitedpotentialaz.org or cgeldis@unlimitedpotentialaz.org

OPERATIONS SUPERVISOR - FORESTRY
Calling All Certified Arborists! The City of Modesto’s Forestry Division is growing — and we’re on the lookout for an experienced Operations Supervisor to help lead our amazing team! If you have a passion for trees, would love spending your time in an office setting and outdoors, and have experience supervising crews in Urban Forestry, this could be the perfect opportunity for you.

Join us in shaping a greener, healthier city — one branch at a time! 

Upcoming Salary Increases and Incentives:
3% effective 7/1/2026
2.5% Education Incentive - Bachelor's Degree
5% Education Incentive - Master's Degree

The City of Modesto is seeking a skilled leader to join our Forestry Division! The Forestry Operations Supervisor plans, organizes, directs, and oversees a variety of activities related to maintaining and repairing streets, parks, and trees, while performing technical tasks in Urban Forestry.

This role requires Arborist Certification within one year of appointment—but if you’re already a certified arborist, even better! Bring your expertise and help us keep Modesto’s urban forest thriving. 

APPLICATION PROCESS

Applicants will be assessed on the application submitted. Due to the volume of applications received, resumes will not be screened for the purpose of determining who is most qualified to compete in the testing process. It is the applicant's responsibility to fill out the "Education" and "Work Experience" sections of the application with complete information and adequate detail. Do not substitute any part of the application form with the words "see resume". The following information is provided for you to use as a reference and as a planning tool. Human Resources is unable to schedule make-up examinations.

Applicants considered to be the most qualified will be invited to continue in the testing process.

Tentative Testing Schedule
Online Exam
October 30, 2025 - November 5, 2025

Human Resources reserves the right to revise the testing process to best meet the needs of the City. We are an equal opportunity employer. We are committed to fostering, cultivating and preserving a culture of diversity, equity and inclusion.

MINIMUM QUALIFICATIONS:
Experience and Training Guidelines:  
Any combination of experience and training that would likely provide the required knowledge and abilities is qualifying.  A typical way to obtain the knowledge and abilities would be:

Experience:  
Three years of increasingly responsible experience performing construction and maintenance work in the assigned area of responsibility, including one year providing technical and functional supervision over assigned personnel

Training:
Equivalent to an Associate’s degree from an accredited college with major course work in business administration, public administration, or a related field. 

License or Certificate:
Possession of, or the ability to obtain, a valid California driver's license.  

Click Here to apply or for more information