How long does the Doctolib interview process take?

Most candidates spend between 4 and 8 weeks from recruiter screen to offer. The onsite loop itself runs in a single day or is split across two half-days, with debrief and offer typically within 5 business days after.

How should I prepare specifically for Doctolib?

Focus on three things: (1) the company DNA shown above — what they actually grade for, (2) the rounds in your loop, especially the round most candidates underestimate, and (3) drilling on the question types in this guide using a structured framework like CIRCLES or STAR.

Does this apply to engineering or design roles at Doctolib?

The DNA stays the same — what changes is the round mix. SWE candidates face coding screens instead of Product Sense; designers face portfolio reviews and design exercises. The "what they value" and behavioral signals carry across all functions.

Tell me about yourself and why Doctolib? What specific challenges in healthcare technology interest you?

Type: Behavioral. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Given two lists of time intervals representing the availability of two different practitioners, find all time slots where both are available.

Type: Algorithms. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Implement a 'Rate Limiter' for our public API that limits users to X requests per Y seconds.

Type: Data Structures. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Design the Doctolib appointment booking engine. It must handle high concurrency and ensure no double bookings.

Type: System Design. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

You are given a piece of Ruby or JavaScript code that manages a practitioner's calendar. It has a bug where some slots are shown as available when they are already booked. Find and fix it.

Type: Debugging. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Implement a search autocomplete system for a directory of doctors. It should be efficient as the user types.

Type: Algorithms. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Describe a situation where you disagreed with an Engineering Manager on a product priority.

Type: Conflict Resolution. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Other roles at Doctolib:Product Manager Software Engineer Sales Marketing

Growth · Software Engineer Interview Guide

How to Pass the Doctolib Software Engineer Interview in 2026

The Doctolib DNA (TL;DR)

User-centricity for both patients and practitioners, deep empathy for healthcare workflows, and a strong focus on data privacy and security.

The Doctolib Interview Loop

Your onsite loop will typically consist of 5 rounds.

1
Round 1
Recruiter Screen
Motivation, role fit, logistics.
2
Round 2
Coding Screen
LeetCode-medium algorithmic problems under time pressure.
3
Round 3
System Design
Distributed systems, trade-offs at scale, architecture under constraints.
4
Round 4
Onsite Coding
LeetCode-hard, debugging, code clarity, edge cases.
5
Round 5
Behavioral / Leadership
Past evidence of ownership, influence, resolving conflict.

The Danger Zone: Top Reasons Candidates Fail

Based on our database of Doctolib interview outcomes, avoid these common traps:

No strategy for handling rate limits of external providers.
Not explaining the 'why' behind the chosen path.
Using too much jargon without explanation.
Ignoring the different legal constraints (e.g., SGB V in Germany vs. French regulations)

Test Yourself: Real Doctolib Questions

Three real prompts pulled from our database.

Type · Behavioral

Walk me through your most complex technical project and the impact it had.

Type · System Design

Design a secure system to store and share medical prescriptions between doctors and patients, ensuring GDPR compliance.

Type · Leadership

STAR

Tell me about a time you had to balance a high-impact feature request with strict data privacy requirements.

+ many more questions, signals, and worked examples

Unlock the rubric →

Doctolib Interview Question Bank

A sample from our database, grouped by round. Sign up to see the full set.

10 of 21 questions shown

Recruiter Screen

1
Type · Behavioral
Tell me about yourself and why Doctolib? What specific challenges in healthcare technology interest you?
2
Type · Behavioral
Walk me through your most complex technical project and the impact it had.

Coding Screen

3
Type · Algorithms
Given two lists of time intervals representing the availability of two different practitioners, find all time slots where both are available.
4
Type · Data Structures
Implement a 'Rate Limiter' for our public API that limits users to X requests per Y seconds.
+ 2 more questions in this round (sign up to unlock)

System Design

5
Type · System Design
Design the Doctolib appointment booking engine. It must handle high concurrency and ensure no double bookings.
6
Type · System Design
Design a secure system to store and share medical prescriptions between doctors and patients, ensuring GDPR compliance.
+ 1 more questions in this round (sign up to unlock)

Onsite Coding

7
Type · Debugging
You are given a piece of Ruby or JavaScript code that manages a practitioner's calendar. It has a bug where some slots are shown as available when they are already booked. Find and fix it.
8
Type · Algorithms
Implement a search autocomplete system for a directory of doctors. It should be efficient as the user types.
+ 1 more questions in this round (sign up to unlock)

Behavioral / Leadership

9
Type · Leadership
STAR
Tell me about a time you had to balance a high-impact feature request with strict data privacy requirements.
10
Type · Conflict Resolution
STAR
Describe a situation where you disagreed with an Engineering Manager on a product priority.
+ 7 more questions in this round (sign up to unlock)