Glassdoor users rated their interview experience at NiSource as 100% positive with a difficulty rating score of 3 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Manager and rated their interviews as the hardest, whereas interviews for Manager and roles were rated as the easiest.
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They use the STAR interview format. It was a virtual interview. Panel of two people, one was hiring manager and the other was his peer. They were very serious and scripted throughout the interview .
Interview questions [1]
Question 1
Tell me about a time when you had to influence change
I applied online. The process took 3 weeks. I interviewed at NiSource (Merrillville, IN) in May 2026
Interview
Simple, HR recruiter - haven't heard back from them yet, but I did interview not too long ago so im still waiting on the response. Overall was a good interview super basic information and questions
STAR format. Situation based questions from experience. Pretty standard for a big corporation. Three people on the interview panel all taking turns reading questions. They allowed me to ask questions about the position when I was finished with their questions.
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