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.
Solid 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.

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📌 Senior Tunnel Design Engineer (Ontario)
🏢 Maynard Civil Engineering Recruitment
📍 Ontario