Tunnel Ventilation Lead Engineer

SENER is an independent engineering & construction firm. Established in 1956, today SENER employs 4000 people globally. Our mission is to serve our clients and the society by providing advanced, accurate and effective engineering solutions that improve our clients’ businesses and facilitate society’s access to competitive, safe, sustainable, and state-of-the-art services, equipment and utilities.

Expanding our presence in Toronto and the Canada SENER aspires to incorporate people with the greatest talent and vocation, guiding their human and professional development through growing responsibilities and challenges. We believe in our professionals and support their performance, offering an environment with sufficient freedom to motivate individual initiatives that add value to our and improve SENER. We trust the best to lead, avoiding any discrimination and demanding not only professional aptitude and results but also exemplary conduct, teamwork, dedication, and commitment.

At SENER we know that, with the right people on board, everything is possible.

Our office in Toronto is seeking a Tunnel Ventilation Engineer to join our Toronto team.

The Subway Ventilation Engineer is responsible for the design, analysis, and implementation of ventilation systems for underground transit environments. This role ensures compliance with safety standards and operational efficiency, leveraging advanced simulation tools and local design guidelines. This is a new role in our Toronto office with a hybrid work arrangement.

Key Responsibilities

System Design & Analysis

Develop ventilation solutions for subway stations, tunnels, and emergency scenarios

Perform Computational Fluid Dynamics (CFD) simulations for airflow, smoke control, and thermal comfort

Standards & Compliance:
Ensure all designs comply with Toronto Transit Commission (TTC) Design Manuals, NFPA 130, and applicable codes

Prepare technical documentation, specifications, and drawings.

Project Coordination:
Lead ventilation design activities across project phases (concept, detailed design, construction support)

Collaborate with multidisciplinary teams (mechanical, electrical, fire safety)

Safety &

Risk Management:

Conduct emergency ventilation and smoke management studies

Validate system performance under worst‑case conditions using CFD and empirical methods

Qualifications

Education:

Bachelor’s or Master’s degree in Mechanical Engineering or related discipline.

Experience:

Minimum 10 years in subway or tunnel ventilation design.

Technical Expertise:

Proficiency in CFD software (e.g., FDS, ANSYS Fluent).

Strong knowledge of tunnel aerodynamics.

Standards Knowledge: TTC Design Manuals, NFPA 130, ASHRAE guidelines.

Soft Skills:

Strong communication, leadership, and problem-solving abilities.

Preferred Qualifications

Experience with Toronto transit projects or similar large‑scale urban rail systems

Familiarity with emergency ventilation strategies and fire life safety systems is mandatory

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