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

      Klarna

      Is this your company?

      About
      Reviews
      Pay and benefits
      Jobs
      Interviews
      Interviews
      Related searches: Klarna reviews | Klarna jobs | Klarna salaries | Klarna benefits | Klarna conversations
      Klarna interviewsKlarna Software Engineer (Functional Programmer) interviewsKlarna 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.

      Software Engineer (Functional Programmer) Interview

      21 Dec 2015
      Anonymous interview candidate
      No offer
      Negative experience
      Easy interview

      Application

      I applied online. The process took 2 weeks. I interviewed at Klarna in Sept 2015

      Interview

      There was an initial 1h phone screening with their functional programming HR. He seemed like a nice guy. This was the only time I got to interact with him as then he went on paternity leave. I explained I was in a bit of a hurry as I was in the final stages of an interview process with other companies. They made me do a kind of IQ test (pattern recognition) which just seemed lazy, but whatever. Then they booked two skype interviews to be done on a morning one full week later (!!!) --- one with a engineering manager (talk) and other of technical nature (implementing an algorithm). By sheer unluck skype was with constant outages so I couldn't do the first interview. When I got to the technical interview they had it all ready for an Erlang code session, which is a language that I have never ever written a line of code with. After explaining that to the interviewer, they scheduled again another (Java) interview for a week later. Their HR would send me mails with contradictory dates for the interviews. I was informed that I'd do the two interviews on that same day. I actually got to do my technical interview, which seemed alright, but it seems they completed forgot about the other one. By that time I already had a good offer on the table from another company and was pretty much convinced that they are really unorganized and incompetent. I informed them that I already got another offer and that I did not want to continue the process and guess what? They never answered back. Would not recommend.

      Interview questions [1]

      Question 1

      Convert a positive integer to string on Cloud9 (or maybe a string to a positive integer, I can't recall).
      Answer question