ENGINEER (Subtransmission Planning)
Posted Oct 1, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a time you had to reach agreement with design, construction or operations groups who disagreed.
What they are checking: Whether they can build consensus across workgroups, which the posting emphasizes.
Tell me about a time you set expectations for others or held people to a standard.
What they are checking: Whether they can lead and reinforce expectations as the posting describes.
What would you do
How would you justify a project to leadership who must choose between several capital needs?
What they are checking: Whether they can make a clear case with reliability data and cost, not only engineering detail.
Operations reports repeated overloads on a line during summer peaks. What do you do?
What they are checking: Whether they can respond to near-term issues while planning a long-term fix.
About the work
Walk me through how you would study whether a 34 kV or 69 kV line needs an upgrade.
What they are checking: Whether they understand load flow, contingency analysis and planning criteria for subtransmission.
What power system analysis tools have you used, such as CYME, PSS/E or Synergi?
What they are checking: Whether they have hands-on modeling skills for planning work.
A large solar project wants to connect to a distribution substation. What concerns would you study?
What they are checking: Whether they understand DER integration issues like thermal limits, voltage rise and protection.
What does N-1 contingency mean, and why does it matter for planning?
What they are checking: Whether they understand the reliability standard behind most planning decisions.
How would you develop a conceptual design for a new distribution substation?
What they are checking: Whether they can scope a project well enough for others to design and build it.
How do you document your planning studies so others can trust and reuse them?
What they are checking: Whether their work is clear and auditable for future engineers and regulators.
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As published by Ameren.