Senior Tunnel Design Engineer

Maynard Civil Engineering Recruitment; Toronto; On-site; CAD 90,000 - 120,000; Full time

Job summary

A civil engineering recruitment firm in Toronto seeks a Senior Tunnel Design Engineer with over 8 years of experience in major infrastructure projects. This role involves developing and reviewing design specifications for various tunnel types, providing technical assurance during construction, and ensuring compliance with international standards. The ideal candidate will possess a degree in Civil, Geotechnical, or Structural Engineering and strong skills in numerical modeling. The position is contract-based and located on site.

Qualifications

• 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 and SEM/NATM tunnel design.

Responsibilities

• Produce and review design calculations, drawings, and specifications for various tunnel types.
• Prepare design reports, calculations, drawings, and technical specifications.
• Provide site support during excavation, lining installation, and TBM drives.

Skills

Tunnel design development

Geotechnical analysis

Structural modeling

Numerical modeling

Technical report writing

Education

Bachelor’s or Master’s degree in relevant engineering field

Tools

PLAXIS

FLAC

MIDAS

RS2

Abaqus

Job description

Join to apply for the Senior Tunnel Design Engineer role at Maynard Civil Engineering Recruitment

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, and project‑specific design criteria. 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.

Seniority level: Mid‑Senior level.

Employment type: Contract.

Job function: Engineering and Information Technology.

Industries: Civil Engineering.

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