Arborist

WSP; Area E (Thornhill); Hybrid; CAD 67,000 - 93,000; Full time

Job summary

WSP is seeking an Arborist to join our Ontario team in the Greater Toronto Area, blending field and office work. You’ll collaborate with Senior Arborists, Ecologists, and Landscape Architects on projects spanning arboriculture and urban forestry, contributing to policy development and site-specific assessments.

Ideal candidates have 3+ years in consulting arboriculture, ISA certification (or in progress), CAD experience for Tree Preservation Plans, and strong tree identification skills.

Qualifications

• A Degree or Diploma in Ecology, Biology, Environmental Studies, Landscape Architecture or Landscape Technology; or similar, relevant education
• 3+ years of professional experience working in consulting arboriculture
• Designation as an ISA Certified Arborist (attained or in progress)
• Excellent written and verbal communications skills
• Experience working in CAD to develop Tree Preservation and Restoration Plans
• Strong tree identification and assessment skills
• Experience working with private and public sector clients in delivery of Arboriculture services
• Strong understanding of Municipal Tree By-Laws and Conservation Authority regulations regarding tree impacts
• A valid driver’s license and ability to travel within the GTA/Southern Ontario to visit project sites
• Ability to conduct fieldwork independently on a variety of sites
• Ability to work independently, show initiative and contribute positively to office activities, initiatives, and learning opportunities.

Responsibilities

• Complete tree inventories, assessments and related arboriculture field work
• Respond to tree protection by‑law stipulations to determine study scope and prepare tree removal permits
• Contribute to development of arboriculture and urban forestry policies for our clients
• Assess impacts to trees from proposed developments and infrastructure
• Arborist report writing, proposal and occasional presentation preparation
• Attend meetings as an arboriculture representative for WSP
• Interpretation and assessment of Species at Risk requirements and implications on projects
• Prepare Tree Preservation and Restoration Plans
• Pursuit of Arborist specific proposals
• Provide guidance on the implementation of tree protection measures, including visits to site when required

Skills

Written & verbal communication

Tree identification

Independent fieldwork

Urban forestry knowledge

GIS

Driver's license & travel

Team collaboration

Education

Ecology/Biology/Environmental Studies/Landscape

ISA Certified Arborist (attained or in progress)

Tools

AutoCAD

Hand-held GPS units

Job description

What if you could redefine what’s possible? With us, you can.

With us, you can. You want Purpose. Growth. Opportunity. People who get it.
We are the home of ambitious, passionate, and innovative world shapers.
With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global minds unite to power local solutions.
We are pathfinders and impact makers.
We are Visioneers.
We are WSP

The Opportunity

Build the Future with Us

WSP is seeking an Arborist to join our Ontario team in the Greater Toronto Area. We’re looking for a candidate with both consulting and field experience interested in contributing to the growth of our integrated Landscape Architecture, Arboriculture and Urban Forestry practice. Our ideal candidate is familiar with legislative frameworks (Toronto, GTA, Southern Ontario) and is keen to contribute to environmentally conscientious Arboriculture practice, particularly in the realm of Urban Forestry. The role offers a balance of field and office work in a collaborative environment alongside our in‑house Urban Planning, Engineering and Environmental groups. We value curiosity, accountability [TM1] , and a collaborative mindset.

Your Impact

• We are an agile team and are currently working under a hybrid model combining in‑person team collaboration days with work-from‑home options.
• You will work closely and collaboratively with Senior Arborists, Ecologists, and Landscape Architects on a wide range of project types to:
  • Complete tree inventories, assessments and related arboriculture field work
  • Respond to tree protection by‑law stipulations to determine study scope and prepare tree removal permits
  • Contribute to development of arboriculture and urban forestry policies for our clients
  • Assess impacts to trees from proposed developments and infrastructure
  • Arborist report writing, proposal and occasional presentation preparation
  • Attend meetings as an arboriculture representative for WSP
  • Interpretation and assessment of Species at Risk requirements and implications on projects
  • Prepare Tree Preservation and Restoration Plans
  • Pursuit of Arborist specific proposals
  • Provide guidance on the implementation of tree protection measures, including visits to site when required

The Skills That Set You Apart

A Degree or Diploma in Ecology, Biology, Environmental Studies, Landscape Architecture or Landscape Technology; or similar, relevant education

3+ years of professional experience working in consulting arboriculture (recent graduates with strong, relevant work experience may also be considered)

Designation as an ISA Certified Arborist (attained or in progress)

• Excellent written and verbal communications skills
• Experience working in CAD to develop Tree Preservation and Restoration Plans
• Strong tree identification and assessment skills
• Experience working with private and public sector clients in delivery of Arboriculture services
• Strong understanding of Municipal Tree By‑Laws and Conservation Authority regulations regarding tree impacts
• A valid driver’s license and ability to travel within the GTA/Southern Ontario to visit project sites
• Ability to conduct fieldwork independently on a variety of sites
• Ability to work independently, show initiative and contribute positively to office activities, initiatives, and learning opportunities.

The following qualifications are strongly desired:

• Professional designation as a Forester, Urban Forester, or equivalent
• Experience performing Butternut Health Assessment (BHA)
• Tree Risk Assessment Qualification (TRAQ)
• Experience with AutoCAD
• Proficiency with Microsoft Office suite
• Proficiency with GIS, including GIS software and hand‑held GPS units

Compensation
AB, BC, NT, NU, SK & YT: $72 800 – $97 900
MB & ON: $66 500 – $92 800
NB, NL, NS, PE & QC: $65800 – 88 600

Disclosure
The final salary awarded for this role may vary from the above range based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. The wage range provided in this job posting may be subject to change for business purposes.

Job Info

• Job Identification 95459
• Posting Date 09/17/2026, 02:12 PM

About Us

At WSP, we exist to shape communities to advance humanity.
It’s why we bring people together who are wired to solve complex challenges - engineers, scientists, advisors, and technical experts who are driven by a common passion - to redefine what’s possible and shape what comes next. We are Visioneers.
As one of the world’s leading professional services firms, we partner with clients across transportation, infrastructure, environment, buildings, energy, water, mining and metals. We pair deep local knowledge with global insights to pioneer solutions designed to leave a lasting, positive impact.
At WSP, you’ll join a community of brilliant minds that push boundaries every day - applying deep expertise and fuelling innovation to help create a more connected and resilient future. Here, your ideas are valued, your growth is supported, and you are encouraged to bring your authentic self to work. We empower our people to collaborate across disciplines, challenge the status quo, and shape a career with purpose.
Join us.
Please Note:
Health and Safety is a core paramount value of WSP. Given the importance of keeping one another safe it is expected that you comply with our Health, Safety & Environment (HSE) policy at all times as well as client HSE policies when working at client locations. Full details here .
Some safety-sensitive positions involve fieldwork and may include work in a variety of environmental conditions, such as remote or isolated areas, working alone, and in inclement weather (within safe and reasonable limits).
WSP welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.
WSP is committed to the principles of employment equity. Only the candidates selected will be contacted.
WSP does not accept unsolicited resumes from agencies. Full details here .