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

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Online AssessmentDSA / CodingMachine CodingLow-Level Design

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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

← SAP

Senior Frontend at SAP

FrontendSeniorOffer◆ Commonly asked· 2024

A senior frontend loop. Fundamentals mattered as much as getting to an answer.

The loop · 6 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Lowest common ancestor of a binary tree.
    SeniorMedium◆ Commonly asked
    #tree
    PracticeLeetCode↗GeeksforGeeks↗
  • Meeting rooms II — minimum rooms required.
    SeniorMedium◆ Commonly asked
    #heap#intervals
    PracticeLeetCode↗GeeksforGeeks↗
  • Pacific Atlantic water flow.
    SeniorMedium◆ Commonly asked
    #dfs#grid
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a color-picker with hex/rgb sync.
    SeniorMedium◆ Commonly asked
    #react#ui
    PracticeGeeksforGeeks↗Search↗
  • Build a countdown timer with pause and resume.
    SeniorEasy◆ Commonly asked
    #react#state
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 2 questions

System Design

High-level architecture of a large-scale system.

  • Design a pastebin with expiring links.
    SeniorMedium◆ Commonly asked
    #storage#ttl
    PracticeGeeksforGeeks↗Search↗
  • Design a news feed / timeline.
    SeniorHard◆ Commonly asked
    #fanout#ranking#cache
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • How does React reconciliation / the diffing algorithm work?
    SeniorMedium◆ Commonly asked
    #react#fiber
    PracticeGeeksforGeeks↗Search↗
  • How does a service worker enable offline support?
    SeniorMedium◆ Commonly asked
    #pwa#offline
    PracticeGeeksforGeeks↗Search↗
  • Explain memoization: useMemo, useCallback and React.memo.
    SeniorMedium◆ Commonly asked
    #react#perf
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 1 question

Hiring Manager

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

  • What does a great engineering culture look like to you?
    Senior◆ Commonly asked
    #values
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
  • Describe a disagreement on a code review and how it ended.
    Senior◆ Commonly asked
    #conflict#star

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