theloop
CompaniesRoundsQuestionsSearchProgress
theloop

Interview questions from top companies, mapped to the exact round they show up in. Prep for what you will actually face.

View source

Browse

CompaniesSearchAll rounds

Rounds

Online AssessmentDSA / CodingMachine CodingLow-Level Design

Contribute

Share an interviewReport an issueStar on GitHub

The Loop aggregates publicly shared interview experiences and curated commonly-asked questions, each labeled with its source. Not affiliated with any company listed.

CC BY-NC 4.0 · © 2026

← Cadence

Senior Backend at Cadence

BackendSeniorRejected◆ Commonly asked· 2023

Senior backend interview. Pragmatic questions — more real-world than pure puzzles.

The loop · 6 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Longest consecutive sequence.
    SeniorMedium◆ Commonly asked
    #hashmap#array
    PracticeLeetCode↗GeeksforGeeks↗
  • Min cost to connect all points.
    SeniorMedium◆ Commonly asked
    #graph#mst
    PracticeLeetCode↗GeeksforGeeks↗
  • Invert a binary tree.
    SeniorEasy◆ Commonly asked
    #tree
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a file-upload service with chunking and resume.
    SeniorHard◆ Commonly asked
    #streaming#storage
    PracticeGeeksforGeeks↗Search↗
  • Build a URL health checker with a concurrency limit.
    SeniorMedium◆ Commonly asked
    #concurrency
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 2 questions

System Design

High-level architecture of a large-scale system.

  • Design a distributed task queue like Celery.
    SeniorHard◆ Commonly asked
    #queues#workers
    PracticeGeeksforGeeks↗Search↗
  • Design a ticket booking system (inventory + concurrency).
    SeniorHard◆ Commonly asked
    #concurrency#transactions
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain how DNS resolution works end to end.
    SeniorMedium◆ Commonly asked
    #networking
    PracticeGeeksforGeeks↗Search↗
  • How does a write-ahead log guarantee durability?
    SeniorHard◆ Commonly asked
    #databases
    PracticeGeeksforGeeks↗Search↗
  • Idempotency in APIs — why and how.
    SeniorMedium◆ Commonly asked
    #api-design#idempotency
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 1 question

Hiring Manager

Scope, ownership, and role-fit discussion with the manager.

  • How do you keep a team unblocked and shipping?
    Senior◆ Commonly asked
    #leadership
06

Round 06 · 2 questions

Behavioral / HR

Values, collaboration, and past-experience (STAR) questions.

  • Describe handling a tight deadline with competing priorities.
    Senior◆ Commonly asked
    #prioritization#star
  • Tell me about a time you led without a title.
    Senior◆ Commonly asked
    #leadership#star

Practice each round across every company

  • DSA / Coding
  • Machine Coding
  • System Design
  • Tech Deep-Dive
  • Hiring Manager
  • Behavioral / HR

◆ This experience is composed from commonly reported questions for this role and level. Real, individually-shared interviews will be layered in over time.