Assistant Surveyor

Trillium Guideway Partners; Toronto; On-site; CAD 55,000 - 75,000; Full time

Job summary

Trillium Guideway Partners is seeking an Assistant Surveyor to support land and construction surveying on the Ontario Line NC project in the Don Mills/North York area. You will help collect measurements, record data, and ensure alignment with design specifications.

Join a team of surveyors, engineers and project managers, primarily in the field with some office work. Requires a diploma/associate degree and 1+ year experience, plus proficiency with Total Stations, GPS, AutoCAD Civil 3D and GIS.

Qualifications

• Diploma or associate degree in Surveying or Geomatics.
• 1+ years of surveying, land measurement, or construction layout.
• Familiar with surveying instruments and software like AutoCAD Civil 3D and GIS.

Responsibilities

• Support land, topographic, and construction site surveys using surveying instruments.
• Assist in site layout and staking to align with plans.
• Collect, record, and process survey measurements and elevations.
• Operate and maintain surveying equipment and calibrations.
• Prepare survey maps, reports, and drawings for teams.
• Collaborate with surveyors, engineers, and managers for accurate data.
• Monitor ground movement and site deformations for stability.
• Use AutoCAD Civil 3D, GIS, or Trimble/Leica systems for data processing.
• Mark control points and benchmarks; conduct general fieldwork.

Skills

Survey degree

Experience 1+ yrs

Instruments proficiency

Surveying software

Math & analytics

Communication & teamwork

Education

Diploma / Associate in Surveying/Geomatics

Tools

Total Stations

GPS

Laser Levels

AutoCAD Civil 3D

GIS

Job description

The Primary Construction Team consists of ACCIONA Infrastructure Canada Inc. (ACCIONA) and Amico Major Projects Inc. (Amico), as Trillium Guideway Partners (TGP).

What is the project?

The Ontario Line(“OL”) is a fully integrated, stand‑alone, rapid transit system that connects Ontario Science Centre to the Exhibition and Ontario Place grounds. The Northern Civil, Stations and Tunnel(“NC”) project consist of approximately 7 kms of underground subway and elevated guideway, with stations along the segment providing connections to surface bus and streetcar routes. The NC project has been divided into two main progressive design‑build contracts: (1) the Elevated Guideways and Stations Contract(“EGS”) and the Pape Tunnel and Underground Station Contract(“PTUS”), with supporting Early Works.

What is the Opportunity?

The Assistant Surveyor supports land and construction surveying activities by helping collect, record, and analyze data to ensure accurate measurements for engineering and construction projects. This role collaborates closely with surveyors, engineers, and construction teams to ensure proper project execution and compliance with design specifications.

Responsibilities

• Ensure adherence to safety standards, surveying regulations, and project specifications.
• Assist in land, topographic, and construction site surveys using Total Stations, GPS, and other surveying instruments.
• Support site layout and staking out, ensuring structures and infrastructure align with engineering plans.
• Collect, record, and process survey measurements, elevations, and site conditions.
• Operate and maintain surveying equipment, ensuring proper calibration and functionality.
• Help prepare survey maps, reports, and technical drawings for engineering and construction teams.
• Collaborate with surveyors, civil engineers, and project managers to provide accurate site data.
• Support in monitoring ground movement, settlement, and site deformations for stability assessments.
• Use surveying software (AutoCAD Civil 3D, GIS, or Trimble/Leica systems) for data processing and visualization.
• Assist in marking control points and benchmarks for ongoing construction activities.
• Perform general fieldwork duties, including setting up equipment, marking reference points, and maintaining documentation.

Work Conditions:

• Work Location: Don Mills Area, North York. Next to Don Valley station.
• Primarily field-based, with some office work for data processing.
• Full-time, with potential for overtime, nighttime and weekend work depending on project requirements.

What You’ll bring to the Team (Knowledge, Skills, Competencies)

• Diploma or associate degree in Surveying, Geomatics, Civil Engineering, or a related field.
• 1+ years of experience in surveying, land measurement, or construction layout.
• Basic proficiency in surveying instruments (Total Stations, GPS, Laser Levels, etc.).
• Familiarity with surveying software (AutoCAD, Civil 3D, GIS, or similar tools).
• Strong mathematical and analytical skills for measuring and interpreting data.
• Ability to work outdoors in varied weather conditions and navigate construction sites.
• Good communication and teamwork skills to collaborate with surveyors and engineers.
• Attention to detail and ability to follow precise technical instructions.

Please note that only candidates that meet requirements will be contacted.

We do not accept unsolicited agency resumes.

We are committed to creating an accessible and barrier‑free recruitment process and workplace. If you need any accommodation through the process, please email [e-mail]