ServiceNow Senior Frontend Software Engineer Interview Experience

Hi everyone, I recently went through the interview process for a Senior Software Engineer - Frontend Developer role at ServiceNow, and wanted to share my experience. --- ## Round 1 (DSA + Frontend

Hi everyone, I recently went through the interview process for a Senior Software Engineer - Frontend Developer role at ServiceNow, and wanted to share my experience. --- ## Round 1 (DSA + Frontend Design) * Brief introduction * Interviewer explained his background 1. Merge Intervals - https://leetcode.com/problems/merge-intervals/ 2. Copy Linked List with Random Pointer - https://leetcode.com/problems/copy-list-with-random-pointer/ ### Frontend System Design: * Design a Nested Comments system * Focus on component structure * Data flow and recursion * Handling deeply nested threads #### Verdict: ✅ Cleared --- ## Round 2 (Frontend Coding) * Build an Autocomplete Search Component * Debouncing * API handling * UX considerations (loading, empty state, etc.) #### Verdict: ✅ Cleared --- ## Round 3 (System Design + Deep Dive) * 2 Interviewers * Introduction + detailed discussion on past experience ### System Design: Design a Notification Panel for a Web App Key areas they expected: * Component structure (modular design) * State management strategy * Data fetching & API interaction * Handling loading states, real-time updates, and data consistency Detailed discussion on one of my recent projects ## Performance Question * Problem: Rendering 100k messages efficiently ### Expected Solution: * List Virtualization * Support for dynamic heights * Proper scroll management #### Verdict: ✅ Cleared --- ## Final Outcome All rounds were successfully cleared. However, the process did not proceed further as ServiceNow paused hiring for the engineering teams, and no further interviews were scheduled.