Systems Integration Engineer, Senior Rail and Transit (Thornhill)

The Opportunity – Build the Future with Us

As a Senior Systems Integration Engineer , you will play a critical role in delivering a major rail extension project. You will ensure that complex, recent‑build systems integrate seamlessly with live, operational transit infrastructure. Working from our Toronto office or a project office, you will collaborate across disciplines and organizations to drive systems integration from concept through to revenue service – leaving a lasting impact on how communities move.

Your Impact

• Lead systems integration planning and execution across complex, multi‑disciplinary rail and transit projects.
• Define and manage systems architecture, interfaces, and integration strategies across the full engineering lifecycle.
• Coordinate signaling, communications, traction power, SCADA, control centre, and related subsystems to ensure seamless interoperability.
• Define and manage interfaces through Interface Control Documents (ICDs), Interface Definition Documents (IDDs), and traceability artifacts.
• Drive interface management, verification, and validation activities aligned with progressive design‑build milestones.
• Facilitate technical workshops and interface resolution sessions with designers, contractors, vendors, operators, and clients.
• Ensure compliance with system requirements, industry standards, and client expectations through robust traceability and governance.
• Engage directly with clients to resolve technical issues and align expectations.
• Mentor junior engineers and specialists, fostering technical excellence and collaborative delivery.

The Skills That Set You Apart

• Bachelor’s degree in Systems, Electrical, Mechanical, or related Engineering discipline from an accredited university.
• Registered as an Engineer‑in‑Training (EIT) or licensed P.Eng. in Canada.
• INCOSE Certification such as ASEP or CSEP is an asset.
• 8+ years of experience in transit, rail, or other safety‑critical engineering environments.
• Strong command of Systems Engineering principles, including V‑model lifecycle, interface definition, and integration planning.
• Hands‑on experience with systems integration for complex rail or transit projects.
• Working knowledge of ISO/IEC 15288, IEEE 1220, RAMS, and system safety certification processes.
• Experience supporting Verification & Validation (V&V) activities (FAT, SAT, SIT, test planning).
• Knowledge of CENELEC standards and Metrolinx Schedule 29 is an asset.
• Familiarity with Requirements Management and Integration using tools like IBM DOORS.
• Ability to communicate complex technical topics clearly to both technical and non‑technical stakeholders.

Compensation

AB, BC, NT, NU, SK & YT: $135,200 – $179,100
MB & ON: $123,300 – $169,800
NB, NL, NS, PE & QC: $122,100 – $162,200

Health, Safety & Employment Equity

Health and Safety is a core paramount value of WSP. It is expected that you comply with our Health, Safety & Environment (HSE) policy at all times as well as client HSE policies when working at client locations. Full details are available at

WSP welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

WSP is committed to the principles of employment equity. Only the candidates selected will be contacted. WSP does not accept unsolicited resumes from agencies. Full details are available at