Back End Developer Interview Questions

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There is a HashMap contains 7 Keys, which is Monday through Sunday. Each key is corresponding to a List of (Start time, end time) pairs. The pairs is unsorted. What I have to do is to merge the time slots that are adjacent. And finally return another HashMap that contains the same structure but with merged time slots.
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Back-end Software Engineer Intern

Interviewed at Yelp

3.2
Oct 16, 2016

There is a HashMap contains 7 Keys, which is Monday through Sunday. Each key is corresponding to a List of (Start time, end time) pairs. The pairs is unsorted. What I have to do is to merge the time slots that are adjacent. And finally return another HashMap that contains the same structure but with merged time slots.

What do you think would you do at Yelp? What does your current working day is structured? A number of technical questions (how many byte in 64bit, largest number of int32, immutable python type out of list, tuple & dictionary, how do i find a function by name in a number of source-code files, what is the HTTP port, what is SSL, complexity of binary list item search...)
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Back-end Software Engineer

Interviewed at Yelp

3.2
Jan 28, 2016

What do you think would you do at Yelp? What does your current working day is structured? A number of technical questions (how many byte in 64bit, largest number of int32, immutable python type out of list, tuple & dictionary, how do i find a function by name in a number of source-code files, what is the HTTP port, what is SSL, complexity of binary list item search...)

Le processus était structuré en trois phases distinctes : Phase 1 (RH) : Questions sur votre parcours professionnel, votre motivation, disponibilité et les attentes salariales (attentes salariales). Phase 2 (Technique) : Évaluation de la séniorité sur les stacks (System Design, Event-Driven Architecture, Message Broker, Typescript, NestJs), suivi d'un exercice de pair-programming. Phase 3 (Culture Fit) : Mise en situation sur la collaboration en mode Agile, gestion des scénarios d'équipe et alignement sur la culture de l'entreprise.
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Développeur Back-end

Interviewed at Groupe Crit

3.7
Nov 27, 2025

Le processus était structuré en trois phases distinctes : Phase 1 (RH) : Questions sur votre parcours professionnel, votre motivation, disponibilité et les attentes salariales (attentes salariales). Phase 2 (Technique) : Évaluation de la séniorité sur les stacks (System Design, Event-Driven Architecture, Message Broker, Typescript, NestJs), suivi d'un exercice de pair-programming. Phase 3 (Culture Fit) : Mise en situation sur la collaboration en mode Agile, gestion des scénarios d'équipe et alignement sur la culture de l'entreprise.

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