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Plexus Engineer Interview Questions
& Process

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

Based on 17 interview experiences · FREE TO READ

2.3 Rounds average
Average Typical difficulty
58.8% Positive experience

Candidate interview experiences

First-hand accounts from people who interviewed at Plexus.

Showing 3 of 17
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Plexus

Design Engineer

Engineering · more than a year ago

Entry Difficult Positive experience Accept offer 2 rounds
Interview process
Technical screen Recruiter call Background check Offer
Interview formats
Technical Coding Behavioral

The whole process was pretty fast, which was nice. Maybe it helped that I'd already interviewed with a manager from the same department for a different role. So, the first interview basically revisited stuff from that previous chat. I'm combining the two experiences since the roles were so similar. The first interview was really technical since it was for a junior role. The hiring manager kept digging into my technical knowledge to see if I knew things relevant to the job. I really liked the interaction and enthusiasm, which I found was missing in other interviews. We even used a whiteboard to discuss and learn new things, which then became the basis for more questions. A week later, I found out they went with someone more experienced, but they immediately suggested a similar role, this time as a graduate trainee with the chance to rotate through different departments before going permanent. That led to the second interview. This one wasn't as technical; it was more about behavioral and aptitude analysis, figuring out which departments I'd fit into and assessing my passion. The operations director introduced me to the functional managers, and we chatted, which helped confirm my interests and areas for growth. Meeting the other managers just solidified my interest in the company; the motivation and knowledge I saw in the first manager seemed to be a company-wide thing.

Confirmed questions5 questions
  • Can you explain what an RTOS is?
  • Considering a printer, would you opt for an RTOS or a conventional OS like Windows or Linux?
  • Are you familiar with the concept of an Interrupt?
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Plexus

Design Engineer

Engineering

Entry Average Positive experience No offer 2 rounds
Interview process
Phone screen Presentation Technical screen Onsite
Interview formats
Behavioral Technical Presentation

The interview process involved a phone interview followed by an onsite interview at Plexus, Penang. The HR staff, technical manager, and other staff were all friendly and nice. The manager even arranged for a staff member to give me a tour of the office and lab after my interview. This tour was a great opportunity to see the actual work environment. Speaking with the staff member who led the tour, the company seemed to have an awesome culture that's open to opinions and a nice work environment. However, a downside was that they didn't follow up with me about the application outcome, even after I emailed them to inquire. Despite this, it was a great interview overall.

Confirmed questions6 questions
  • Can you tell me about your strengths and weaknesses?
  • How would you rate your priorities regarding compensation, workplace atmosphere, and professional growth?
  • Which academic subject do you like the most?
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Plexus

Engineer

Engineering

Entry Average Neutral experience No offer 1 round
Interview process
Recruiter call Technical screen
Interview formats
Technical Coding

I got interviewed at a career expo. The interview was short and focused on technical stuff. You needed to know basic circuits and embedded systems. The interviewer was nice and knew a lot about the field and what an entry-level engineer should know.

Confirmed questions2 questions
  • Could you draw a bode plot?
  • How would you go about programming a microcontroller?

Plexus Engineer Interview Questions

Quoted word for word from Plexus interview reports.

What does this C function do: int func(int *x) { int t; t = *x * *x; return t; }?

Read reports

Design a function for a microprocessor that takes a square clock wave input (max 250Hz, 25%-75% tolerance) and calculates its average frequency, iterating at a specific interval 'x'.

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Could you implement a counter with a synchronous reset using Verilog?

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Considering a printer, would you opt for an RTOS or a conventional OS like Windows or Linux?

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If presented with two terminal devices or components, what steps would you take to identify them?

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Imagine a box with four holes that aren't lined up correctly during assembly. How would you resolve this issue?

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Formats, difficulty and experience

Across all 17 Plexus interview reports.

Interview formats

Behavioral 35%
Technical 30%
Presentation 20%
Coding 7.5%
Group 7.5%

Interview difficulty

Easy 11.8%
Average 58.8%
Difficult 29.4%

Candidate experience

Positive 58.8%
Neutral 35.3%
Negative 5.9%