Senior Tunnel Design Engineer

Maynard Civil Engineering Recruitment; Toronto; On-site; CAD 120,000 - 180,000; Full time

Job summary

Maynard Civil Engineering Recruitment is seeking an experienced Civil Engineer to lead tunnel design on major infrastructure projects in Canada. You will develop designs for TBM-driven tunnels, conduct geotechnical and structural analyses, and prepare technical reports and drawings for tender submissions and construction execution.

The role requires 8+ years in tunnel design, strong FEM modelling capability, and experience with metro or large-scale rail projects.

Qualifications

• Bachelor’s or Master’s degree in Civil Engineering or related field.
• 8+ years of tunnel design experience on major infrastructure projects.
• Proven TBM tunnel design (EPB/slurry/rock) and SEM/NATM experience.
• Experience on metro, rail, or large national infrastructure projects.
• Strong numerical modelling skills (2D/3D FEM).
• Knowledge of ground-support design, segmental linings, temporary works, and tunnel waterproofing.

Responsibilities

• Design development for TBM tunnels and caverns.
• Produce and review calculations, drawings, and specs for TBM tunnel works.
• Perform geotechnical and structural analysis for ground-structure interaction.
• Coordinate with multidisciplinary teams and stakeholders.
• Provide construction support, monitor ground movement, and respond to RFIs.

Skills

Tunnel design

TBM design

Geotechnical Eng

Numerical modelling

FEM analysis

Site supervision

Education

Bachelor’s or Master’s degree in Civil Engineering

Tools

PLAXIS

FLAC

MIDAS

RS2

Abaqus

AutoCAD

Job description

Key Responsibilities

• Tunnel Design Development
• Produce And Review Design Calculations, Drawings, And Specifications For TBM tunnels (EPB, Slurry, Hard Rock)
• SEM/NATM tunnels and caverns
• Launching/receiving shafts
• Cross-passages
• Station caverns and mined tunnels
• Develop structural and geotechnical design models (2D/3D FEM, analytical, empirical).

Geotechnical and Structural Analysis

Perform detailed analysis of ground-structure interaction for various ground conditions. Conduct numerical modelling (e.g., PLAXIS, FLAC, MIDAS, RS2, Abaqus). Evaluate settlement, convergence, lining stresses, and support requirements.

Design Documentation

Prepare design reports, calculations, drawings, and technical specifications. Provide input for tender submissions, feasibility studies, and constructability assessments. Manage design revision cycles and ensure compliance with project standards.

Coordination & Interface Management

Interface closely with structural, geotechnical, MEP, alignment, and temporary works teams. Support design coordination with contractors, clients, and third-party stakeholders. Participate in multi-disciplinary design reviews, constructability meetings, and HAZIDs.

Construction Support & Technical Assurance

Provide site support during excavation, lining installation, and TBM drives. Review monitoring data, settlement trends, and ground movement predictions. Support change requests, design adjustments, and responses to technical queries (RFIs). Participate in risk assessments, method statement reviews, and design verification.

Standards & Compliance

Ensure All Designs Comply With Relevant International/metro Standards, Including Eurocodes, BS/EN, AASHTO, ACI, AREMA, AISC (as applicable), Local metro authority standards, Project-specific design criteria. Ensure designs incorporate safety-by-design, durability, and long-term performance.

Essential

Minimum Qualifications & Experience

• Bachelor’s or Master’s degree in Civil Engineering, Geotechnical Engineering, Structural Engineering, or related field.
• Minimum 8 years of tunnel design experience on major infrastructure projects.
• Proven experience in both TBM tunnel design (EPB/slurry/rock) and SEM/NATM tunnel design.
• Experience working on metro, rail, or large national infrastructure projects.
• Strong numerical modelling skills (2D and 3D FEM).
• Solid knowledge of ground-support design, segmental linings, temporary works, and tunnel waterproofing.
• Ability to produce high-quality technical reports and design deliverables.