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WalmartLabs SDET interview process

WalmartLabs interview process is easier when compared to other tech giants like Amazon, Microsoft and Google but the quality of work is at par with those giants. You will have 1 phone interview and 4 face to face interviews.

  1. Phone interview -  You will be tested on basic coding and problem solving skills. You should be familiar with one programming language and should possess very good understanding of algorithms and time/memory complexities.
  2. Problem solving & Coding - You will be given one algorithmic question of medium complexity. You are expected to give an algorithm, write code in any language and write testcases for it.
  3. Design & Java - You will be given a design question for a simple software system and expected to come up with system design. You should be able to discuss in deep the pros and cons of your design and come up with variations. You might also be tested on your knowledge on distributed systems and concurrency in java.
  4. Hiring Manager - You will be tested on culture and team fit. Questions will mostly be behavioral and open-ended. You might get one programming question also.
  5. Bar raiser - Getting this interview depends on the team you are being hired. You will get a mix of coding, behavioral and testing questions. It's a good opportunity for you to evaluate the team which you will be working on and know it's roadmap, challenges, etc.
If it is a campus interview, phone interview will be replaced by written round and there is no director round.

Amazon QA engineer Interview process

I am going to give you a broad overview about interview rounds and some tips for preparation which should help.
  1. First round of interview is Test case enumeration. You will be given a scenario and be asked to come up with test strategy and test cases. So what questions might be asked? Anything. You should simply think as you do in your job and come up with test cases.
  2. Second round is Scripting and test data generation. You will be given a simple coding problem (mostly dealing with arrays and strings).  The problems will be straight forward if you know any programming language basics. You should write code for it, come up with  test cases/data for the same problem.
  3. Third round is Problem solving and debugging. You will be given a simple algorithmic problem to solve and be asked to write code for it. Basic problem solving skills and algorithmic knowledge will help you clear this round easily. Also you will be getting debugging questions like  "How will you debug a computer - printer setup if it's not working. You need to think and give all options that you can do.

    1. Fourth round might be QA process and Hiring manager round. You will mostly get behavioral questions, why are switching companies/roles, why do you want join amazon, why are you leaving your current company, etc. You might want to give positive impression and make him believe that you will do the job once hired.
    2. Fifth round is Bar raiser. Your bar raiser may pickup questions related to any of the above round. You will be probed more and more and be tested if you can raise the bar at amazon. If you are good at all above said competencies and doesn't have arrogance, it is easy to clear.