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      Software Engineer II Interview

      17 Jul 2025
      Anonymous employee
      Lisbon, Lisbon District

      Other Software Engineer II interview reviews for Datadog

      Software Engineer II Interview

      26 Jan 2026
      Anonymous employee
      Paris
      Accepted offer
      Positive experience
      Accepted offer
      Positive experience
      Difficult interview

      Application

      I applied through a recruiter. The process took 4 weeks. I interviewed at Datadog (Lisbon, Lisbon District) in May 2025

      Interview

      The interview process was structured and enjoyable, consisting of the following stages: Recruiter introductory meeting, Live coding with a leetcode style exercise, Live coding in React, System design interview, Experience-based interview, Values and culture-fit interview, Team matching. What stood out to me was how conversational and collaborative the technical interviews were. In both the coding and design rounds, it wasn’t just about arriving at a "correct" solution, it felt more like a dialogue. I was encouraged to explain my thought process, and whenever I hit a roadblock, the interviewers were supportive and happy to help unblock me, which made the sessions feel more like problem-solving together rather than a test. The experience interview was also very engaging, it focused on past projects, technical decisions I made proactively, and offered space to reflect on architectural trade-offs and alternative approaches. Overall, the process was respectful, thoughtfully structured, and gave me a strong sense of the company’s collaborative culture.

      Interview questions [1]

      Question 1

      Leet code medium-hard exercise on the first live coding
      Answer question
      Difficult interview

      Application

      I applied through an employee referral. I interviewed at Datadog (Paris) in Nov 2025

      Interview

      - Screening (discussion with the recruiter to ensure there is a match) - First round : coding interview - Second round : coding interview, system design, project & values (presentation of a project I worked on and where I had a major impact, followed by behavioural questions) - Team match (team managers present their teams and projects and you choose the one you prefer)

      Interview questions [1]

      Question 1

      First coding : Write a BufferedFile class Second coding : Sliding window problem System design : Design a system similar to r/places
      Answer question

      Software Engineer II Interview

      28 Jul 2025
      Anonymous employee
      Paris
      Accepted offer
      Positive experience
      Average interview

      Application

      I applied through a recruiter. I interviewed at Datadog (Paris)

      Interview

      I really appreciated the care from the recruiting team during this interview process. The recruiter made sure to check in at each step and provide feedback (which is rare to receive in this industry). I was also very impressed by the kindness of all of my interviewers and their willingness to answer all of my questions.

      Interview questions [1]

      Question 1

      Coding, system design, technical deep dive, behavioral
      Answer question

      Software Engineer II Interview

      28 May 2026
      Anonymous interview candidate
      No offer
      Positive experience
      Difficult interview

      Application

      I applied through a recruiter. I interviewed at Datadog in Jun 2025

      Interview

      Le premier entretien RH se focalise sur l'experience, les motivations, le fit avec l'offre. S'en suivent deux entretiens de coding (test d'algorithmique style leetcode). Suite à ça, un entretien de system design, dont l'objectif est de tester les capacités à concevoir l'architecture technique pour répondre à un problème vague donné en début d'entretien. Puis enfin un entretien sur l'expériences et les valeurs (discussion technique sur un projet + questions comportementales). Le process est clair, le talent acquisition manager m'a donné des conseils tout au long du process pour bien préparer les entretiens.

      Interview questions [1]

      Question 1

      Donner un exemple de situation complexe qui vous sont déjà arrivées durant votre carrière, et comment vous avez réagi / ce que vous en avez retiré ?
      Answer question