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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

← Lockheed Martin

New Grad / Junior Full-stack at Lockheed Martin

Full-stackNew Grad / JuniorRejected◆ Commonly asked· 2025

5-round junior fullstack process. Fast-paced; expect follow-ups that push on depth.

The loop · 5 rounds

01

Round 01 · 1 question

Online Assessment

Timed online coding / aptitude screen, usually the first filter.

  • Given a list of transactions, detect fraudulent patterns.
    New Grad / JuniorMedium◆ Commonly asked
    #hashmap#simulation
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Trapping rain water.
    New Grad / JuniorHard◆ Commonly asked
    #two-pointers#array
    PracticeLeetCode↗GeeksforGeeks↗
  • Merge intervals.
    New Grad / JuniorMedium◆ Commonly asked
    #intervals#sorting
    PracticeLeetCode↗GeeksforGeeks↗
  • Maximum depth of a binary tree.
    New Grad / JuniorEasy◆ Commonly asked
    #tree#dfs
    PracticeLeetCode↗GeeksforGeeks↗
03

Round 03 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a modal/dialog with focus trapping.
    New Grad / JuniorMedium◆ Commonly asked
    #react#a11y
    PracticeGeeksforGeeks↗Search↗
  • Implement an exponential-backoff HTTP client.
    New Grad / JuniorMedium◆ Commonly asked
    #reliability
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Caching strategies: cache-aside, write-through, TTLs.
    New Grad / JuniorMedium◆ Commonly asked
    #cache
    PracticeGeeksforGeeks↗Search↗
  • Debounce vs throttle — implement one from scratch.
    New Grad / JuniorMedium◆ Commonly asked
    #javascript#perf
    PracticeGeeksforGeeks↗Search↗
  • How do you implement dark mode without a flash?
    New Grad / JuniorMedium◆ Commonly asked
    #css#ssr
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

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

  • When did you have to make a decision with incomplete data?
    New Grad / Junior◆ Commonly asked
    #judgment#star
  • When did you change your mind after seeing new evidence?
    New Grad / Junior◆ Commonly asked
    #judgment#star

Practice each round across every company

  • Online Assessment
  • DSA / Coding
  • Machine Coding
  • Tech Deep-Dive
  • 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.