The process was divided into 4 interviews in this order: 1. Phone Screen (30 min): They talk to you about the company and ask you some basic questions about yourself. 2. Tech Screen (1 hr): You will be asked a coding problem similar to the style of Leetcode and you'll complete the problem. They'll modify the problem as they see fit and ensure you have basic coding knowledge. 3. Design Interview (1 hr): You'll be asked to design some software. The big point here is to talk about the different options and work together with the interviewer as if they're your buddy. It's not too hard but you do need to keep on task and have knowledge in design. 4. Behavioural Interview (1 hr): This interview is about your behavior. They'll ask you questions and you should respond using the STAR method. I didn't find this part difficult at all.
Interview questions [3]
Question 1
Tech Screen: Binary Search -> Almost Sorted Array -> Same with duplicates + some basic questions about complexity, etc.
Design Interview: Design Feedly (an RSS aggregator). This one was probably the hardest due to the time constraint but as long as you stay on task and work with the interviewer you should pass
This has first round of HR screening and two rounds of Technical round (more coding discussing with interviewer) and one round of system design. Later last round of offer discussion.
Processus de recrutement en quatre étapes : un entretien RH pour discuter du parcours et des motivations, un entretien technique Python d’environ 1h avec des exercices de programmation, un entretien technique web de 2h portant sur les technologies et concepts web, et enfin un entretien d’1h sur le software design pour évaluer les compétences en architecture et conception de systèmes.
Interview questions [1]
Question 1
Programme Python classique pour vérifier si les parenthèses sont valides
I applied online. I interviewed at Criteo (Bucharest, Bucuresti) in Jan 2026
Interview
application screening, followed by a initial video interview with the HR, than a first technical interview to assess basic qualifications. Questions were of type medium leetcode problem with deep dive and improvements after
Software Engineer applicants have rated the interview process at Criteo with 3.1 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 80% positive. To compare, the company-average is 70.4% positive. This is according to Glassdoor user ratings.
Candidates applying for Software Engineer roles take an average of 22 days to get hired, when considering 31 user submitted interviews for this role. To compare, the hiring process at Criteo overall takes an average of 26 days.
Common stages of the interview process at Criteo as a Software Engineer according to 31 Glassdoor interviews include:
Phone interview: 31%
One on one interview: 28%
Skills test: 13%
Presentation: 10%
Group panel interview: 9%
Drug test: 3%
Background check: 3%
IQ intelligence test: 1%
Personality test: 1%
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