Verilog Interview Questions for Developers

Use our engineer-created questions to interview and hire the most qualified Verilog developers for your organization.

Verilog is a popular hardware description language (HDL) used extensively in the design of digital circuits and systems.

The Institute of Electrical and Electronics Engineers (IEEE) solidified Verilog’s status as an official HDL by adding it to IEEE Standard 1364 in 1995.

In order to assess the Verilog proficiency of developers during coding interviews, we have supplied practical coding tasks and interview queries below.

Furthermore, we have delineated a collection of recommended guidelines to guarantee that your interview inquiries effectively gauge the candidates’ Verilog capabilities.

Verilog example question

Help us design a parking lot app

Hey candidate! Welcome to your interview. Boilerplate is provided. Feel free to change the code as you see fit. To run the code at any time, please hit the run button located in the top left corner.

Goals: Design a parking lot using object-oriented principles

Here are a few methods that you should be able to run:

  • Tell us how many spots are remaining
  • Tell us how many total spots are in the parking lot
  • Tell us when the parking lot is full
  • Tell us when the parking lot is empty
  • Tell us when certain spots are full e.g. when all motorcycle spots are taken
  • Tell us how many spots vans are taking up


  • The parking lot can hold motorcycles, cars and vans
  • The parking lot has motorcycle spots, car spots and large spots
  • A motorcycle can park in any spot
  • A car can park in a single compact spot, or a regular spot
  • A van can park, but it will take up 3 regular spots
  • These are just a few assumptions. Feel free to ask your interviewer about more assumptions as needed

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Interview best practices for Verilog roles

For effective Verilog interviews, it’s crucial to take into account multiple aspects, including the applicants experience levels and the engineering position they’re interviewing for. To guarantee that your Verilog interview inquiries produce optimal outcomes, we suggest adhering to the following best practices when engaging with candidates:

  • Create technical questions that align with actual business cases within your organization. This will not only be more engaging for the candidate but also enable you to better assess the candidate’s suitability for your team.
  • Encourage the candidate to ask questions during the interview and foster a collaborative environment.
  • Make sure your candidates can also demonstrate proficiency in defining and examining timing constraints to guarantee that the design satisfies the necessary performance criteria.

Moreover, it is essential to follow conventional interview practices when carrying out Verilog interviews. This encompasses tailoring the question difficulty according to the applicant’s development skill level, offering prompt feedback regarding their application status, and permitting candidates to inquire about the evaluation or collaborating with you and your team.