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      Sonar

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      Data Engineer Interview

      Jun 6, 2025
      Anonymous employee
      Accepted offer
      Positive experience
      Average interview

      Application

      I applied online. The process took 2 months. I interviewed at Sonar in Apr 2025

      Interview

      The hiring process consisted of six distinct stages: Stage 1: Code Assignment - A 1-hour coding challenge on the Codility platform, comprising 3 LeetCode-style questions. Stage 2: Recruiter Interview (Jan) - This was a highly positive experience. The recruiter was exceptionally supportive throughout the process, providing prompt feedback after each stage. Their professionalism and encouragement were much appreciated. Stage 3: Technical Q&A - An interview with two developers, one leading the questions and the other taking notes. The environment was stress-free and designed to make candidates feel comfortable. Stage 4: System Design Interview - This stage involved designing an ETL process. It was a challenging yet enjoyable experience, marking my first exposure to this type of interview. The interviewer's approach ensured a comfortable atmosphere. Stage 5: People & Culture Interview - A standard interview focused on behavioral questions, such as handling specific workplace situations. Stage 6: CTO Interview - Similar in format to the previous stage. While the process was extensive, the positive interactions, particularly with the recruiter and the technical interviewers, fostered a sense of optimism and encouragement to continue through each stage.

      Interview questions [1]

      Question 1

      - What is data mesh - What is a slowly changed dimension
      Answer question

      Other Data Engineer Interview Reviews for Sonar

      Data Engineer Interview

      Jan 6, 2023
      Anonymous Interview Candidate
      No offer
      Negative experience
      Average interview

      Application

      I applied online. The process took 1 week. I interviewed at Sonar in Nov 2022

      Interview

      I applied online . The process took 1+ week. I interviewed at SonarSource in Nov 2022 . I was interviewed with hr employer (vedeo call) ,she was sympa and questions was easy to discuss the company and my background , I was waiting for the technical interview as next step but suddenly they send to me a feedback to not move forward at this time . I don't know why they waste their time and the time for serious and professional people!

      Interview questions [1]

      Question 1

      present your self (classical questions ) Your experience ? do you will to relocate to switzerland ?
      Answer question

      Sonar interviews FAQs

      • Data Engineer applicants have rated the interview process at Sonar with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 50% positive. To compare, the company-average is 33.3% positive. This is according to Glassdoor user ratings.
      • Candidates applying for Data Engineer roles take an average of 34 days to get hired, when considering 2 user submitted interviews for this role. To compare, the hiring process at Sonar overall takes an average of 33 days.
      • Common stages of the interview process at Sonar as a Data Engineer according to 2 Glassdoor interviews include:

        Phone interview:  40%

        One on one interview:  20%

        Presentation:  20%

        Background check:  20%

      • Here are the most commonly searched roles for interview reports -

        1. Software Engineer(9) ;
        2. Account Manager(5) ;
        3. Sales(5) ;
        4. Software Developer(4) ;
        5. Account Executive(3) ;
        6. Engineering Manager(3) ;
        7. Anonymous(2) ;
        8. Developer(2) ;
        9. Enterprise Account Executive(2) ;
        10. Sales Manager(2) ;
        11. Sales Representative(2) ;
        12. Senior Software Engineer(2) ;
        13. Solutions Engineer(2) ;
        14. Technical Support Engineer(2) .


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      Jobs at Sonar

      2 jobs in United States
      Data Scientist, Marketing Analytics
      Austin, TX
      ·
      $91K - $149K /yr
      (Glassdoor est.)
      View job
      Senior Software Engineer (Full Stack)
      New York, NY
      ·
      $150K - $250K /yr
      (Employer provided)
      View job
      View all Data Engineer Jobs