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

      Mars

      Engaged employer

      About
      Reviews
      Pay and benefits
      Jobs
      Interviews
      Interviews
      Related searches: Mars reviews | Mars jobs | Mars salaries | Mars benefits
      Mars interviewsMars Operational Excellence Manager interviewsMars 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.

      Company Bowl sample

      Want the inside scoop on your own company?

      Check out your Company Bowl for anonymous work chats.

      Bowls

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

      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.

      Operational Excellence Manager Interview

      4 Aug 2022
      Anonymous interview candidate
      London, England
      No offer
      Positive experience
      Difficult interview

      Application

      I applied online. The process took 3 weeks. I interviewed at Mars (London, England) in July 2022

      Interview

      Cv and cover letter Screening Call with the hiring manager - few initial questions(30 minutes) Test with a panel of evaluators - 4 hours long based on a case study and questions on it Site visit & meet the team

      Interview questions [1]

      Question 1

      Classic questions on why do you want to join? Case Study based on "real scenario" asking what would you do if you were a consultant deciding a strategy. Quite broad case study tbf Not hard questions just very long interview
      Answer question