IBM Frontend Engineer interview questions and process

Updated · 14 sources

Hiring Pulse: where IBM candidates are right now

Dated status reports from public Reddit threads and anonymous PortLume reports, updated Oct 18. Not official IBM data.

  • 25 status reports in the last 7 days
  • Not enough data yet: median from final interview to a decision shows at 5+ people (2 so far)
  • Latest movement: 4 offers, 2 final rounds, 9 interviews reported since Oct 11

Latest IBM hiring reports

  • Oct 17: Final round Oct 2 (r/IBM)
  • Oct 16: OA invite Sep 22 then OA done Sep 22 then Interview Oct 13 (r/csMajors)
  • Oct 16: Interview Sep 24 (r/csMajors)
  • Oct 16: Offer Oct 16 (r/IBM)
  • Oct 16: Offer Oct 16 (r/IBM)

Candidates rate the IBM Frontend Engineer interview Medium: Reports describe an online coding test followed by technical rounds that mix JavaScript/React fundamentals with basic DSA, which is moderate rather than FAANG-level. Reports describe 4 rounds, from Online assessment (HackerRank-style coding test) to Managerial / HR round.

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IBM Frontend Engineer interview rounds

  1. Online assessment (HackerRank-style coding test): Timed coding test, usually on HackerRank. Candidates report finishing in well under the allotted time, but rejections can come quickly and without any email.
  2. Technical Round 1 (JavaScript, React, core coding)
  3. Technical Round 2 (TR-2: deeper React/JS and problem solving)
  4. Managerial / HR round

Questions reported in IBM Frontend Engineer interviews

  1. Write code to reverse a LinkedList.
  2. Sort an array based on its frequency (using a hashmap and custom sort).
  3. Explain closures and where you have used them in a React project. (typical for this role, not from a single report)
  4. What is the difference between props and state, and when would you use context? (typical for this role, not from a single report)
  5. How does the virtual DOM work and how do keys affect list rendering? (typical for this role, not from a single report)

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IBM Frontend Engineer interview: quick answers

How many rounds are in the IBM Frontend Engineer interview?

Public reports describe 4 rounds for the IBM Frontend Engineer interview: (1) Online assessment, (2) Technical Round 1, (3) Technical Round 2, (4) Managerial / HR round. Round 1: Timed coding test, usually on HackerRank. Candidates report finishing in well under the allotted time, but rejections can come quickly and without any email.

Is the IBM interview difficult?

Public reports put the IBM Frontend Engineer interview at Medium difficulty. Reports describe an online coding test followed by technical rounds that mix JavaScript/React fundamentals with basic DSA, which is moderate rather than FAANG-level. The process has 4 rounds, from Online assessment to Managerial / HR round.

Does IBM ask DSA in Frontend Engineer interviews?

Yes. Rounds that involve coding: Online assessment (HackerRank-style coding test), Technical Round 1 (JavaScript, React, core coding). Reported coding questions include "Sort an array based on its frequency (using a hashmap and custom sort)". Reports describe an online coding test followed by technical rounds that mix JavaScript/React fundamentals with basic DSA, which is moderate rather than FAANG-level.

Sources

Based on 14 public reports: YouTube (8), LeetCode Discuss (6), last updated Oct 2026.

Compiled by Adarsh Sharma from public candidate reports. Unofficial guide: PortLume AI is not affiliated with IBM.

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