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Product engineeringProduct company

Criteo

Builds advertising technology for retailers and brands, including retail media and ad targeting driven by machine learning.

Not known5 stage process documentedFounded 2005
Headquarters

Paris, France

Headcount

1,000 to 5,000

1,000 to 4,999 people
Work model

Not known

Hiring

Not known

Not enough signal to say. Check the careers page directly.
Where to apply

Ask for a referral to Criteo

A referral only means something if the person giving it can actually speak to your work. I will refer you where I know someone on the inside and your profile genuinely fits the role, and I will tell you plainly when I cannot. Either way you get an answer, and a straight one.

  • I read every request. A reply takes a few days, sometimes longer.
  • I will not refer someone for a role their profile does not fit. It wastes your time and costs me the contact.
  • Where I cannot refer you, I will say why, and point you at the way in that does work.
  • Nothing you send here is shared with anyone without you agreeing to it first.

If you found the opening, paste it. It tells me which team you mean.

A Drive, Dropbox or personal-site link is fine. Make sure it opens without a request for access, or I cannot read it.

At least a short paragraph. This is what I would be putting my name behind, so specifics beat adjectives.

Comma separated, up to six. Things you would be happy to be tested on.

How they hire

Criteo says there is no single process for every job, so the steps and technical format vary by role and level.

  1. 1

    Recruiter call

    Official
    Recruiter screen

    A conversation about your background, experience and career goals. A call with the hiring manager may follow straight after.

  2. 2

    Interviews with the team

    Official
    Panel interview

    One or more interviews, each covering a different area of the job, where you meet potential colleagues and both sides assess fit.

  3. 3

    Technical interview

    Official
    Technical interview

    Tests the hard skills the role needs. The format varies, for example a case study or a whiteboard exercise, and the recruiter explains how to get ready beforehand.

  4. 4

    Final interview

    Official
    Final HR round

    Shortlisted candidates talk through their longer-term goals and expectations one more time before a decision.

  5. 5

    Decision and offer

    Official
    Offer

    Criteo makes its decision and extends an offer to the chosen candidate.

What comes up

Recurring themes from candidate accounts, not a question bank. Nobody is served by leaked question lists, least of all you in the interview.

  • Coding exercises

    Reported

    One engineer describes a phone round followed by two further coding exercises on site, and recommends practising algorithm problems.

  • System design

    Reported

    The same account ends with a system design exercise and suggests reading up on distributed systems and tools such as Kafka and Elasticsearch.

  • Motivation and career goals

    Official

    Recruiter and final conversations focus on your experience, what you want next and your longer-term aspirations.

Worth reading before you apply

From the Sefism resource library, matched to the rounds above.

Roadmap
Coding Interview Playbook

A structured learning path through coding interview preparation that brings together data structures and algorithms fundamentals, recursion and the pattern-based approach to coding questions in one order. It totals 77 chapters and 1,054 lessons, with quizzes, flashcards and a certificate. Use it when you have plenty of material but no clear plan for what to study first.

  • Job search
  • DSA
  • Career
Design Gurus · Interview Prep · 3 to 6 months
SubscriptionDetails
Roadmap
FAANG Coding Interview Roadmap

A bundle of five company-specific question courses covering the problems most often reported from Meta, Microsoft, Amazon, Google and Oracle coding rounds, each split into easy, medium and hard sets with worked solutions. It suits candidates who already know the core patterns and have a loop booked at one of these companies, and want to rehearse on the questions those interviewers are known to ask.

  • Job search
  • DSA
  • Career
Design Gurus · Interview Prep · 3 to 4 months · Advanced
SubscriptionDetails
Course
Grokking Tech Salary Negotiations

A practical course on negotiating compensation in tech, from preparing and building a strategy to specific tactics, the full package beyond base salary, handling multiple offers and asking for a raise. It has tailored sections for fresh graduates and experienced engineers. It suits anyone with an offer coming, and anyone who has ever accepted the first number out of discomfort.

  • Career
  • Job search
Design Gurus · Career Growth · 1 week
SubscriptionDetails
Tool
Resume Review

A paid, human review of your resume by experienced engineers and hiring managers from large technology companies, returned in three to five business days with line-by-line suggestions, proposed rewrites of bullet points and applicant tracking system advice. It suits engineers whose resume is already reasonably solid and who want detailed feedback from people who screen engineering resumes for a living before a job search.

  • Career
  • Job search
Design Gurus · Career Growth · Minutes
Platform
Hack The Box Academy

Hack The Box's structured course platform, built from short modules rather than the open ended machines the main HTB site is known for. Its Tier 0 fundamentals modules are effectively free, and job role paths such as SOC Analyst and Penetration Tester lead into HTB's own practical certifications.

  • CS fundamentals
  • Career
  • Job search
Hack The Box · Other · Self paced · Intermediate
Platform
LetsDefend

A blue team focused training platform built around a simulated Security Operations Centre, where you investigate real looking alerts, phishing emails, and malware samples the way a working SOC analyst would. It is one of the few platforms aimed specifically at defensive rather than offensive skills, with content mapped to MITRE ATT&CK.

  • CS fundamentals
  • Career
  • Job search
LetsDefend (part of Hack The Box) · Other · Self paced · Beginner
Browse the whole library

What it pays

Nothing collected for this company yet, and nothing worth guessing at. A made-up range is worse than no range because people negotiate against it.

Add to the Criteo page

This library is only as good as what people who have been through it are willing to share. Most of these companies have no hiring process documented anywhere, and one account of what the rounds actually were is worth more than anything I can research from the outside.

What are you adding?

This decides how the claim is labelled on the page. Only someone representing the company can produce an “official” label, and I check that separately.

Year and month.

Comma separated topics, not the questions themselves.

Round by round is ideal: what each one was, how long, remote or in person, and what it covered.


Credit

Anonymous is the default. If you keep it anonymous, nothing identifying you reaches the page: it is published as a candidate account and your name stays with me. Never send anything covered by an NDA, and never send a take-home or a question paper.

Universities they recruit from

No sourced university links yet. A campus drive, a career fair appearance or an internship partnership is what puts a university here.

Add to the Criteo page

This library is only as good as what people who have been through it are willing to share. Most of these companies have no hiring process documented anywhere, and one account of what the rounds actually were is worth more than anything I can research from the outside.

What are you adding?

This decides how the claim is labelled on the page. Only someone representing the company can produce an “official” label, and I check that separately.

Year and month.

Comma separated topics, not the questions themselves.

Round by round is ideal: what each one was, how long, remote or in person, and what it covered.


Credit

Anonymous is the default. If you keep it anonymous, nothing identifying you reaches the page: it is published as a candidate account and your name stays with me. Never send anything covered by an NDA, and never send a take-home or a question paper.

How to actually get seen

Research Criteo and your interviewers before the calls, and ask your recruiter what the technical round will look like. Practising algorithm and system design problems matches what one engineer reported facing.

Sources

Whole profile last checked 2026-09-22.

Interviewed at Criteo? Fill in what changed.

Processes change, rounds get added, tests get replaced. If what you went through was different from what is on this page, tell me and I will update it.

Want me to refer you here?

Send me the role, your CV and a few honest paragraphs on why you fit it. Where I know someone inside and your profile matches, I will make the introduction. Where I cannot, I will tell you why and point you at the route that does work. You get an answer either way.

Ask for a referral to Criteo

A referral only means something if the person giving it can actually speak to your work. I will refer you where I know someone on the inside and your profile genuinely fits the role, and I will tell you plainly when I cannot. Either way you get an answer, and a straight one.

  • I read every request. A reply takes a few days, sometimes longer.
  • I will not refer someone for a role their profile does not fit. It wastes your time and costs me the contact.
  • Where I cannot refer you, I will say why, and point you at the way in that does work.
  • Nothing you send here is shared with anyone without you agreeing to it first.

If you found the opening, paste it. It tells me which team you mean.

A Drive, Dropbox or personal-site link is fine. Make sure it opens without a request for access, or I cannot read it.

At least a short paragraph. This is what I would be putting my name behind, so specifics beat adjectives.

Comma separated, up to six. Things you would be happy to be tested on.

Add to the Criteo page

This library is only as good as what people who have been through it are willing to share. Most of these companies have no hiring process documented anywhere, and one account of what the rounds actually were is worth more than anything I can research from the outside.

What are you adding?

This decides how the claim is labelled on the page. Only someone representing the company can produce an “official” label, and I check that separately.

Year and month.

Comma separated topics, not the questions themselves.

Round by round is ideal: what each one was, how long, remote or in person, and what it covered.


Credit

Anonymous is the default. If you keep it anonymous, nothing identifying you reaches the page: it is published as a candidate account and your name stays with me. Never send anything covered by an NDA, and never send a take-home or a question paper.

Work with me

Stuck on something specific?

Writing only gets you so far. If you want an answer to your situation rather than the general case, book a session and we will work through it together. Sessions are free for approved Sefism members, and a few slots open each week.