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

      Datadog

      Engaged Employer

      About
      Reviews
      Pay & benefits
      Jobs
      Interviews
      Interviews
      Related searches: Datadog reviews | Datadog jobs | Datadog salaries | Datadog benefits | Datadog conversations
      Datadog interviewsDatadog Senior Frontend Engineer interviewsDatadog interview


      Glassdoor

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

      Employers

      • Free Employer Account
      • Employer Center
      • Employers Blog

      Information

      • Help
      • Guidelines
      • Terms of Use
      • Privacy & 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 personalized job recommendations and updates by starting your searches.

      Senior Frontend Engineer Interview

      Feb 11, 2025
      Anonymous Interview Candidate
      Madrid
      No offer
      Negative experience
      Difficult interview

      Application

      I interviewed at Datadog (Madrid)

      Interview

      It's an absurd process, it takes a long time, leetcode like exercises which will be of no use for a frontend position, if you don't pass the first coding challenge, they won't inquire anything else about how you work. Not recommended.

      Interview questions [1]

      Question 1

      Leetcode like exercises in coding interview 1
      Answer question
      2

      Other Senior Frontend Engineer Interview Reviews for Datadog

      Senior Frontend Engineer Interview

      Nov 3, 2025
      Anonymous employee
      Paris
      Accepted offer
      Positive experience
      Difficult interview

      Application

      I applied online. The process took 2 months. I interviewed at Datadog (Paris) in Sep 2025

      Interview

      The interview process is well-structured and full of useful information. The recruiters schedule calls between the different steps to explain the next stages and provide guidance. My advice is to take advantage of those moments to ask questions and seek tips. In the very first interview with the recruiter, there are a few small questions about past projects, so it’s worth preparing something in advance. The first technical interview focuses on LeetCode-style questions, with a medium level of difficulty. The usual advice applies: think out loud and make use of the interviewer, in my case, they were very kind and understanding. The second step was the live coding session. This one didn’t go very well for me, so I think I can share some extra-useful advice. The exercise is incremental: it starts simple, and then more parts are added, but you don’t get the full picture upfront. That really threw me off, I asked a lot of questions to make sure I wasn’t missing any trick, but that eats up a lot of time, and an hour goes by quickly. My advice is to just complete each task step by step and not worry about optimizations (for example, creating a context or thinking about virtualization). The third step was system design. I was lucky enough to do it in person at the Paris office, which really helped, I felt comfortable, and the interviewer was very kind and supportive. The project focused on the frontend and API design. The fourth and final step was the behavioral interview. I recommend preparing well and not improvising. I also found it helpful to take time to reflect on my career path and understand my strengths and weaknesses. Once again, I was lucky to have an interviewer who made me feel at ease. After that, there were several short meetings to choose the destination team and for follow-ups, honestly, some of those meetings could have been emails (I had to take quite a few breaks from my previous job). Good luck to everyone!

      Interview questions [1]

      Question 1

      Both the live coding and the system design interviews were focused on data and tables (which makes sense given the company’s domain). So, if you’re preparing, make sure you’re a wizard when it comes to data visualization and optimization!
      Answer question
      1

      Senior Frontend Engineer Interview

      Nov 15, 2025
      Anonymous Interview Candidate
      Madrid
      No offer
      Positive experience
      Difficult interview

      Application

      I applied through a recruiter. The process took 5 days. I interviewed at Datadog (Madrid) in Jul 2025

      Interview

      The process consisted of five interviews: two coding interviews, one cultural interview, one with the project manager, and one system-design interview. In my case, I failed the first coding challenge. For the cultural interview and the one with the project manager, the feedback was that I didn’t talk enough about complex projects I had contributed to in the past. For the design-system interview, I honestly wasn’t very well prepared, so my answers were very ambiguous and lacked details about the actual architectural decisions.

      Interview questions [1]

      Question 1

      The first code challenge was about matching different tags that a user could add in a multi-select list and unifying them if they belonged to the same group. I thought it required an inverted index, so I over-complicated the solution. A simpler approach using multiple loops would actually have been more effective. The second challenge was about React and involved building a simple table, then progressively adding features like filters, sorting, etc. For the cultural-type interviews, the questions were about previous projects and how I handled certain scenarios—for example, how I deal with situations where I disagree with my manager. For the system-design interview, I was asked to design a dashboard that supports multiple widgets.
      Answer question

      Top companies for "Compensation and Benefits" near you

      avatar
      Cisco
      4.0★Compensation & Benefits
      avatar
      Capgemini
      3.7★Compensation & Benefits
      avatar
      Salesforce
      4.4★Compensation & Benefits
      avatar
      ADP
      3.5★Compensation & Benefits