Arborist Tree Manager Jobs (NOW HIRING)

About Aretum 

Aretum is a mission-driven organization committed to delivering innovative, technology-enabled solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy, technology, and transformation, helping agencies solve their most critical challenges. We believe in investing in our people and creating a culture where collaboration, inclusion, and professional growth are at the forefront.

Job Summary  

We are seeking an experienced Arborist to support tree care, vegetation management, and grounds safety activities at an on-site government installation in San Antonio, TX. This role is responsible for evaluating tree health and condition, identifying hazards, recommending or performing corrective actions, and helping maintain safe and compliant outdoor environments across the site. The ideal candidate will bring strong arboriculture knowledge, sound judgment, and the ability to work safely in a regulated military installation environment. 

Responsibilities  

• Inspect trees and wooded areas to assess health, structural condition, disease, decay, pest issues, and potential hazards. 

• Identify trees or limbs requiring pruning, treatment, removal, bracing, cabling, or other corrective action. 

• Perform or support pruning, trimming, removal, and general tree care activities in accordance with accepted arboriculture practices and site requirements. 

• Evaluate tree-related risks to buildings, roadways, walkways, utility areas, fenced areas, and other site infrastructure. 

• Recommend treatment or mitigation plans to preserve tree health and reduce safety risks. 

• Support storm response, debris management, and emergency hazard tree assessment, as needed. 

• Maintain records of inspections, findings, work performed, and recommendations for follow-up action. 

• Coordinate with facility management, grounds personnel, and government representatives regarding vegetation management priorities and site conditions. 

• Follow all site safety, environmental, and installation access requirements while working in a secure government environment. 

Requirements

• ISA Certified Arborist required. 

• Minimum of three (3) years of experience in arboriculture, tree care, vegetation management, or a related field. 

• Strong knowledge of tree biology, pruning practices, hazard recognition, disease identification, and safe tree care methods. 

• Experience conducting tree inspections and documenting findings and recommended corrective actions. 

• Ability to work safely around facilities, roadways, and operational areas. 

• Ability to work on-site full-time in San Antonio, Texas. 

• Ability to obtain and maintain required installation/base access. 

Preferred Qualifications  

• Experience supporting arborist or vegetation management work in government, military, industrial, or other secure environments. 

• Familiarity with tree risk assessment, storm damage response, and grounds safety practices. 

• Experience working near utility corridors or other sensitive operational areas. 

• Secret clearance or prior eligibility for access to military installations preferred. 

• Strong attention to detail and ability to work independently in a high-compliance environment.

Benefits

• Health Care Plan (Medical, Dental & Vision)  
• Retirement Plan (401k) 
• Life Insurance (Basic, Voluntary & AD&D)  
• Paid Time Off 
• Family Leave (Maternity, Paternity)  
• Short Term & Long-Term Disability  
• Training & Development 

EEO Statement  

Aretum is committed to fostering a workplace rooted in excellence, integrity, and equal opportunity for all. We adhere to merit-based hiring practices, ensuring that all employment decisions are made based on qualifications, skills, and ability to perform the job, without preference or consideration of factors unrelated to job performance. 

As an Equal Opportunity Employer, Aretum complies with all applicable federal, state, and local employment laws. 

We are proud to support our nation's veterans and military families, providing career opportunities that honor their service and experience. 

If you require reasonable accommodation during the hiring process due to a disability, please contact hr@aretum.com for assistance. 

Equal Opportunity Employer/Veterans/Disabled 

U.S. Work Authorization  

Applicants must be currently authorized to work in the United States on a full-time basis. This position does not offer sponsorship. 

This is a contingent position, meaning employment is dependent upon the successful award of the associated contract to Aretum and completion of any required background investigation or security clearance verification.