Skip to contentSkip to footer
  • Community
  • Jobs
  • Companies
  • Salaries
  • For employers
      Notifications

      Loading...

      Elevate your career

      Discover your earning potential, land dream jobs, and share work-life insights anonymously.

      employer cover photo
      employer logo
      employer logo

      IBM

      Engaged employer

      About
      Reviews
      Pay and benefits
      Jobs
      Interviews
      Interviews
      Related searches: IBM reviews | IBM jobs | IBM salaries | IBM benefits | IBM conversations
      IBM interviewsIBM Compiler Optimization interviewsIBM interview


      Glassdoor

      • About / Press
      • Awards
      • Blog
      • Research
      • Contact Us
      • Guides

      Employers

      • Free Employer Account
      • Employer Centre
      • Employers Blog

      Information

      • Help
      • Guidelines
      • Terms of Use
      • Privacy and Ad Choices
      • Do Not Sell Or Share My Information
      • Cookie Consent Tool
      • Security

      Work With Us

      • Advertisers
      • Careers
      Download the App

      • Browse by:
      • Companies
      • Jobs
      • Locations
      • Communities
      • Recent posts

      Copyright © 2008-2026. Glassdoor LLC. "Glassdoor," "Worklife Pro," "Bowls" and logo are proprietary trademarks of Glassdoor LLC.

      Followed companies

      Stay ahead in opportunities and insider tips by following your dream companies.

      Job searches

      Get personalised job recommendations and updates by starting your searches.

      Compiler Optimization Interview

      Oct 16, 2016
      Anonymous interview candidate
      No offer
      Positive experience
      Difficult interview

      Application

      I applied online. The process took 7 weeks. I interviewed at IBM

      Interview

      Was told to take a cognitive test after a few days of applying. After a month I spoke to a project manager for an HR interview who was very nice. A week later I had a technical interview where I discussed with a programmer projects I worked on, he was also very nice and was genuinely interested in my work. After my technical interview I was emailed that I was not selected for the role and thanked for applying to IBM.

      Interview questions [1]

      Question 1

      Why do you want to work here? Explain the data structures used in your project. Hypothetically how would you allow end users to use your project in the future?
      Answer question

      Other Compiler Optimization interview reviews for IBM

      Compiler Optimization Interview

      Dec 19, 2013
      Anonymous interview candidate
      Markham, ON
      No offer
      Positive experience
      Average interview

      Application

      I applied online. I interviewed at IBM (Markham, ON)

      Interview

      I was invited to an IBM online test one month after submitting resume. Got contacted by the interviewer one month after for an one-hour 1st round phone interview. Questions were mostly technical, during which I was asked to explain a list of software terms, as well as writing code for three problems through GoogleDoc. A 2nd round phone interivew was scheduled a week after. It lasts around 30-min and I was asked to write code for only one problem. After completion the code, the interviewer seems satisfied and asked me if I have any other questions.

      Interview questions [1]

      Question 1

      Questions got asked: 1. Explain software terms, e.g., virtual function, multiple inheritance, template, memory allocation etc; 2. Writing code to reverse a linked list; generate Fibonacci sequence; judge isPowerOf2 without using +/- operations; 3. Given a string and calculate its operation result, e.g., given string "2+3-5+9" it should return 9. Implement code to check whether an integer is a power of 2 without using + and - operations.
      Answer question
      7

      Top companies for "Compensation and Benefits" near you

      avatar
      Concentrix
      3.6★Compensation and benefits
      avatar
      Hewlett Packard Enterprise | HPE
      3.6★Compensation and benefits
      avatar
      EPAM Systems
      3.6★Compensation and benefits
      avatar
      Avanade
      3.6★Compensation and benefits

      Bowls

      Get actionable career advice tailored to you by joining more bowls.

      Company Bowl sample

      Want the inside scoop on your own company?

      Check out your Company Bowl for anonymous work chats.