Internia

Ontario Power Generation (OPG)Interview Experiences

Mechanical Engineer

Oshawa, ON· Summer 2026

Accepted

Ontario Tech University · Mechanical Engineering

3rd year · 3.3-3.6 GPA · 1 past internship

Easy Interview

BehavioralIn-PersonSlow processMultiple rounds

Talk about a time you worked under a tight deadline, a time you solved a problem with limited info. That kind of thing. Behavioral panel with two senior engineers, behavioral questions the whole way. Process took 5 weeks, they warned about that upfront. Security access forms added more time after

Questions Asked

  1. 1.“Walk me through the three modes of heat transfer and when each dominates”
  2. 2.“Describe a time you collaborated with manufacturing or production on a design that had to change”

Electrical Engineer

Oshawa, ON· Summer 2025

No Offer

Queen's University · Electrical Engineering

4th year · 3.7+ GPA · 2 past internships

Easy Interview

BehavioralMultiple roundsSlow processStressful

Really wanted this one got so upset when i didnt get it. Applied January, screening call mid February, panel late March, rejection in April. The wait between each step was brutal. Panel was safety culture and behavioral with three people.

Questions Asked

  1. 1.“What's the difference between AC and DC power? When is each preferred”
  2. 2.“What is electromagnetic interference and how do you design to reduce it?”
  3. 3.“Explain the concept of power system transient stability.”

Electrical Engineer

Toronto, ON· Summer 2026

No Offer

Ontario Tech University · Electrical Engineering

3rd year · 2.9-3.2 GPA · 1 past internship

Average Interview

TechnicalBehavioralVirtualMultiple rounds

Was not prepared for how safety heavy this interview would be. Power systems theory and transformer fundamentals then a safety scenario on working near live electrical equipment. Technical panel after a quick HR screen

Questions Asked

  1. 1.“Walk me through the design of a basic DC regulated power supply”
  2. 2.“Explain what a PLC is and how it's used in industrial control systems”
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