
Johnson Controls Graduate Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 51 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Johnson Controls.
Graduate Engineer Trainee
I went through a Pool Campus Placement Drive. There were three rounds after an initial OA (Aptitude + Technical MCQs). The first round (L1) was a basic technical round, followed by an in-depth technical round (L2), and finally an HR interview (L3). Some people faced really tough questions from the start, but my experience was pretty smooth, and the difficulty at each level felt just right. Even though I had a positive interview experience overall, I didn't make it through, so it was just a good first interview experience.
- Can you please introduce yourself?
- Could you tell us more about your projects?
- What are the definitions of basic electronic components?
Graduate Engineer Trainee
So the interview process began with an online test, and since I'm a robotics and mechatronics student, I was put in the controls division. My test covered aptitude, and the basics of electrical and electronics. After that, it was technical round 1, where they asked about motor basics, sensors, how to choose them, and basic electrical circuits like rectifiers and bridges. Then, students who did well moved on to technical round 2. The questions here were a bit tougher, covering things like control systems, PID control, PLC basics, and ladder logic. Finally, the students who got through that were selected for the HR interview.
- Could you draw a ladder logic diagram to turn a motor on and off, and also explain PID control and its functionality?
- Please draw a ladder logic diagram for turning on and off a motor, and describe PID control and how it works.
Graduate Engineer
Hey everyone, I'm here to share my interview experience at Johnson Controls India for a Graduate Engineer position. This was a Pool Campus drive, but I think it will be helpful for those applying off-campus and on-campus too. There were basically three rounds in the whole process. These were: – Online Test Personal Interview Panel Discussion I'll go into detail about all three rounds. Please keep reading. Round 1 – Online Test: Number of Questions: 75 Time Duration: 60 minutes Difficulty Level: Easy – Medium This was pretty much a Screening test just to filter out candidates. Questions covered a lot of core computer science topics, like data structures, algorithms, cloud computing, and software engineering. No Coding questions were in this round. The test was held on the company’s own portal; the link was sent by our TPO, and we just had to register by filling in details 15 minutes before the test started. The questions were pretty easy for me; it's just your time management skills that will be put to the test, so be ready. Results in my case were declared very quickly, on the same day, to be exact. Out of 1100 candidates who took the test, only 285 were selected. Round 2 – Personal Interview: Time Duration: 30 minutes maximum Difficulty Level: Easy – Medium Requirements: 2 copies of your Resume / CV with your photograph.
- Could you tell me about sensors?
- Can you explain automation, like PLCs and SCADA?
- What are sensors and automation things like plc, scada?
Johnson Controls Graduate Software Engineer Interview Questions
Quoted word for word from Johnson Controls interview reports.
“What's the difference between a stepper motor and a servo motor?”
Read reports →“How would you test a wire inside a wall to see if it's broken?”
Read reports →“What is a thermistor, and in what applications is it used?”
Read reports →“Could you explain the output of full-wave and half-wave rectifiers?”
Read reports →“What are the pros and cons of a star topology?”
Read report →“When transmitting a signal over a long distance, would you opt for sending a current signal or a voltage signal?”
Read report →“Could you explain what harmonics are in electronics and electrical engineering?”
Read report →“What is a transistor, how does it work, and what is it used for?”
Read report →“Given only 50kW and 100kW transformers, and a load of 120kW, which transformer(s) would you select and how would you connect them?”
Read report →Formats, difficulty and experience
Across all 51 Johnson Controls interview reports.