Infinera Hardware Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 6 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Infinera.
Infinera
Hardware Development Engineer
Senior Easy Positive experience Accept offer 5 rounds
Interview process
Recruiter call Phone screen Technical screen Presentation Onsite
Interview formats
Technical Presentation Behavioral
Got a referral before applying. First, there was a phone screen setup, then the actual phone screen. After that, the hiring manager called. Then, I had a virtual half-day interview which included a technical talk with a presentation. Also had virtual one-on-one or group meetings to discuss technical aspects based on each team member's interest.
Confirmed questions4 questions
- Can you tell me about your previous work experience?
- How would you describe your work methodology?
- Could you elaborate on your work mentioned in your resume?
Infinera
Hardware Engineer
Mid Difficult Positive experience Accept offer 3 rounds
Interview process
Recruiter call Phone screen Technical screen Presentation Onsite Panel Background check Offer
Interview formats
Technical Presentation Behavioral Coding
The interview process involved a 45-minute phone call with the hiring manager. This was followed by an in-office interview that included a 1-hour technical presentation and then a 45-minute engineering interview with each of the five interviewers. The second office interview featured a higher-ranking staff member, other managers, and a VP. It is crucial to dedicate time to preparing for the technical presentation and to manage your time effectively during the presentation itself. Be ready to answer fundamental hardware engineering questions concerning transmission lines, coupling, and power issues. The engineers are quite astute, so take your time to formulate thoughtful answers. If you are uncertain about the correct answer, avoid rushing your response.
Confirmed questions2 questions
- Is the coupling capacitive or inductive, and what impact does it have on the signal trace? How would you detect a discontinuity?
- Could you explain the difference between switching and linear regulators? What are the common topologies for a switching regulator, such as buck, boost, or buck-boost?
Infinera
Hardware Engineer
Intern Easy Negative experience Decline offer 1 round
Interview process
Recruiter call
Interview formats
Behavioral
It wasn't a very professional interview. They just asked about my past experiences. I could hear a lot of people talking in the background, and the interviewer kept moving rooms because they didn't have a place to sit and talk.
Confirmed questions1 question
- Can you describe your previous internship experiences?
Infinera Hardware Engineer Interview Questions
Quoted word for word from Infinera interview reports.
“What are the advantages of synchronous versus asynchronous circuits?”
Read reports →“Is the coupling capacitive or inductive, and what impact does it have on the signal trace? How would you detect a discontinuity?”
Read reports →“Can you explain the Smith Chart?”
Read reports →“Could you explain the difference between switching and linear regulators? What are the common topologies for a switching regulator, such as buck, boost, or buck-boost?”
Read reports →“Could you explain RC timings?”
Read report →“Can you describe the reflection of signals?”
Read report →“Tell me about transmission lines.”
Read report →“Can you tell me about your resume and some fundamental concepts like RC timings and reflection of signals?”
Read report →“How does your technical presentation relate to this specific job?”
Read report →Formats, difficulty and experience
Across all 6 Infinera interview reports.