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California ISO Interview Questions
& Process

Real candidates share what happened, how many rounds they had,
and how the experience turned out.

Based on 30 interview experiences · FREE TO READ

1.9 Rounds average
Average Typical difficulty
69% Positive experience

Which role are you interviewing for?

9 roles · 30 reports

Candidate interview experiences

First-hand accounts from people who interviewed at California ISO.

Showing 4 of 30
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California ISO

Legal Technical Assistant

Legal · more than a year ago

Entry Average Positive experience No offer 3 rounds
Interview process
Recruiter call Phone screen Panel
Interview formats
Behavioral Technical

I found the job online and applied. After that, I had a phone interview that lasted about 30 minutes. We mostly talked about my resume and how my past experience would be a good fit for the role. A couple weeks later, I was invited to a video interview with a panel. This interview was split into two 30-minute parts. The first part was with the department manager and two legal team members. The second part was with the department manager and two attorneys. Again, the interview focused on my experience and my future aspirations. Everyone was nice.

Confirmed questions1 question
  • Which of your experiences do you believe best prepares you for this role?
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California ISO

Transmission Dispatcher

Operations · more than a year ago

Mid Average Negative experience No offer 1 round
Interview process
Recruiter call Onsite Background check Offer
Interview formats
Behavioral Technical

I applied online and heard back from HR within 10 days about scheduling an onsite interview, skipping any phone screening. I set it up through CAISO's relocation partner. I got there 30 minutes early to account for traffic and my flight. The campus seemed nice, with employee events happening. I met the HR person after waiting 20 minutes, and they took me to a small room to meet the Operations Director, two Ops Shift Managers, and the HR liaison. They asked questions similar to what others mentioned on Glassdoor. They told me they'd decide in a few weeks. After I got home, I followed up a couple of weeks later to reaffirm my interest. They said a decision would be made in a week. Two weeks after that, I contacted them again, only to find out the person handling my profile was on vacation. I then contacted the HR department directly for a status update, and they said they'd reply. The next day, I got a generic rejection email, 9 weeks after my interview.

Confirmed questions2 questions
  • Can you share an instance where you had to make a quick decision under pressure and what the outcome was?
  • What are the different ways to manage voltage levels?
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California ISO

Market Monitor

Analytics

Entry Easy Negative experience No offer 2 rounds
Interview process
Recruiter call Phone screen
Interview formats
Behavioral Technical

This company is clueless about how to interview people, both the management and HR team. The whole process was a disaster. HR is completely incompetent. Unlike regular companies that set up interviews by email, this place insists on calling for every step, which is super inconvenient if you have a busy job or travel a lot for work. Their failure to schedule things properly over email just made the process take longer. They should stop wasting candidates' time.

Confirmed questions2 questions
  • Questions about your behavior
  • Questions about the specific role
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California ISO

Intern

Other

Intern Easy Positive experience Accept offer 2 rounds
Interview process
Recruiter call Technical screen Offer
Interview formats
Behavioral

I applied online and then HR called me to talk about the job, and after that, she set up a video call for me and the two hiring managers. The whole thing took like 2 weeks. I got an offer the next day after the interview. Everyone was really nice and the company culture seems awesome!

Confirmed questions4 questions
  • What would you do if you had a conflict with a teammate?
  • Which class did you like the most and which did you like the least?
  • Tell me what you know about our company.

California ISO Interview Questions

Quoted word for word from California ISO interview reports.

Can you explain the difference between Economic Dispatch (ED) and Unit Commitment?

Read reports

Which class did you like the most and which did you like the least?

Read report

Could you answer some questions related to the Modern power system analysis course?

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Could you describe your knowledge of the ISO Market and its functioning?

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Formats, difficulty and experience

Across all 30 California ISO interview reports.

Interview formats

Behavioral 59.6%
Technical 34.6%
Group 3.8%
System Design 1.9%

Interview difficulty

Easy 30%
Average 66.7%
Difficult 3.3%

Candidate experience

Positive 69%
Neutral 13.8%
Negative 17.2%

Reports by job function

Engineering 12
Other 7
Analytics 5
Operations 4
Legal 1
HR 1