Final Lining Assistant Manager

Date: Oct 21, 2026

Location:

Scarborough, ON, CA

Operating Sector: Construction

Position Title: Final Lining Assistant Manager

Who We Are

Scarborough Transit Connect (STC) is a joint venture between Aecon and FCC Canada Ltd. that was selected by Metrolinx to deliver the Scarborough Subway Extension – Stations, Rail and Systems (SSE-SRS) package. The Scarborough Subway Extension will bring the TTC’s Line 2 subway service nearly eight kilometers farther into Scarborough. It will extend from Kennedy Station to Sheppard Avenue and McCowan Road, providing quick and seamless transit for those heading into and out of the downtown core and those travelling within Scarborough. The extension will replace Line 3 (the Scarborough RT), helping to reduce travel times and improve access to jobs, schools, and other key destinations throughout the city.

As part of this project, we are currently looking for a Final Lining Assistant Manager to join our team.

What You Will Do

• Reporting to the Sequential Excavation Method (SEM) Construction Manager, you’ll be supporting the planning, coordination, and execution of final lining activities for SEM tunnel and underground structures.
• Assist in managing daily construction operations related to waterproofing, rebar reinforcement installation, formwork systems, embedded items, concrete placement, curing and finishing activities. Verify that all those are constructed in accordance with approved drawings and specifications.
• Coordinate with Construction, Engineering, Survey, Quality, Safety, and subcontractor teams to ensure final lining works are completed in accordance with project requirements.
• Monitor production progress and support the development of short-term work plans and look-ahead schedules.
• Review drawings, specifications, work packages, and construction procedures to support efficient field execution.
• Assist in resolving field issues related to constructability, sequencing, access constraints, and quality requirements.
• Coordinate material, equipment, labour, and subcontractor resources required to support final lining activities.
• Work closely with Quality and Engineering teams to ensure inspections, testing, and documentation requirements are completed.
• Participate in planning and coordination meetings and provide updates on construction progress, risks and constraints.
• Promote a strong safety culture and ensure all work is executed in accordance with project safety requirements and industry best practices.
  
  

Experience You Will Bring

• 8+ years of construction experience supporting underground, tunnelling, heavy civil, concrete, or transportation infrastructure projects.
• Experience self-performing cast-in-place concrete final lining, tunnel arch forms, station concrete works or other permanent underground structural works.
• Degree or diploma in Civil Engineering, Construction Management, Engineering Technology, or a related discipline.
• Experience coordinating subcontractors, field crews, and construction activities in a complex project environment.
• Understanding of waterproofing systems, reinforcement installation, formwork systems, concrete placement, and finishing activities.
• Ability to interpret engineering drawings, specifications, shop drawings, and construction schedules.
• Knowledge of quality control processes, inspection and test plans (ITPs), and construction documentation requirements.
• Strong understanding of construction sequencing and coordination within active tunnel or underground environments.
• Strong organizational and communication skills with the ability to work effectively across multidisciplinary project teams.
• Proven problem-solving abilities and a proactive approach to identifying and addressing construction challenges.
• Demonstrated commitment to safety and experience working within large construction projects.
• Proficiency with Microsoft Office and construction management software.
  
  

Why Join Us?

Compensation: $125,000 - $144,000 annually. The listed salary range reflects potential base pay and considers factors such as experience, education, and training. Each candidate is evaluated individually and offers toward the higher end may be extended to those with exceptional qualifications.

• Comprehensive health and dental benefits and RRSP matching plans.
• The opportunity to work on one of the most exciting rail projects in Toronto.
• A wide array of learning and development opportunities.
• A work environment focused on health and safety.
  
  

This posting is for a current vacancy and applications are reviewed on a rolling basis.

STC is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of citizenship, race, place of origin, ethnic origin, colour, ancestry, disability, age, creed, sex/pregnancy, family status, marital status, sexual orientation, gender identity, gender expression, and record of offences.

Disclaimer: Some parts of our recruitment process may include AI-assisted technology to help manage and streamline the process.

When we collect your personal information as part of a job application or offer of employment, we do so in accordance with industry standards and best practices and in compliance with applicable privacy laws.We are committed to adhering to the objectives and requirements outlined in the Accessibility for Ontarians with Disabilities Act (AODA) and to meeting the accessibility needs of persons with disabilities in a timely manner through the implementation of the requirements of the AODA and its applicable regulations. If you require accommodation under the AODA during any step of the application process, please email us at careers@stconnect.ca.