Apple IC3 Frontend Interview Experience (Jun 2025)

Application & Online Assessment

I've been applying to Apple on and off for the past 2–3 years. This time, I finally received an online assessment link for the IC3 Frontend Engineer role.

Assessment Format:

• Duration: 1 hour
• 2 Coding Questions (DSA + JavaScript): These were a mix of JavaScript and Data Structures & Algorithms — designed smartly to test both areas in tandem. The difficulty was easy to medium, but the time constraint made it challenging.
• 20 Multiple Choice Questions: Covered core JavaScript, React, and Frontend Engineering concepts.

Overall Assessment Difficulty: Medium to Hard, primarily due to the tight time limit.

Recruiter Call

About a week later, I received a call from an Apple recruiter.

What we discussed:

• My reason for looking out
• Why Apple?
• Compensation expectations

The recruiter was friendly and professional, and after our chat, I was moved to the next round: the technical interview.

Technical Interview (Screening + Coding)

This was a 60-minute video interview with an Apple engineer.

• React Output-Based Question

  The interviewer showed a small React code snippet involving the useContext API. I was asked to predict the output and explain the reasoning. Follow-up questions on React hooks:

  • useContext: its use in prop drilling and state management
  • useMemo & useCallback: optimizing performance in React components

  Tip: Be crystal clear with hook behaviors under different re-renders and props changes.

• Nested Tabs Rendering Problem (Coding Round)

  This was the main coding challenge — and also the most interesting one.

  Problem Statement: Given a flat array of tab objects with id, name, and parentId, render a nested tab or accordion structure in React where each tab appears under its parent.

  Sample Input JSON:

  [
  { "id": 1, "name": "Parent 1", "parentId": null },
  { "id": 2, "name": "Child 1.1", "parentId": 1 },
  { "id": 3, "name": "Child 1.2", "parentId": 1 },
  { "id": 4, "name": "Parent 2", "parentId": null },
  { "id": 5, "name": "Child 2.1", "parentId": 4 }
  ]
  

  Objective: Transform this into a nested UI structure, like:

  - Parent 1
   - Child 1.1
   - Child 1.2
  - Parent 2
   - Child 2.1
  

  My Approach: Converted the flat list into a tree-like structure using a map and used DFS to render tabs recursively.

  I was able to solve it and explain my logic clearly. The interviewer seemed satisfied.

• Web Security Basics

  Finally, I was asked a few questions on web security:

  • How can we secure a website?
  • Topics like HTTPS, Content Security Policy (CSP), CORS, and securing cookies came up.

Outcome

After 4 weeks, I heard back from the recruiter:

“Someone else has joined for this position. We'll reach out if similar roles open up.”

Yes, I felt a little disappointed. But I was also genuinely happy knowing someone else just got their dream job. That's life.