ServiceNow | Senior Software Engineer | IC3
Summary
I shared my interview experience for a Senior Software Engineer | IC3 role at ServiceNow, detailing rounds focused on DSA, LLD, HLD, and a Hiring Manager discussion. I successfully navigated all stages and received an offer.
Full Experience
Hey everyone, sharing my experience to give back posts from this community genuinely helped me during prep 🙌
🟢 Round 1 (R1) – DSA Question Types: Disjoint Set (Union-Find) based problem Interval-based problem (merging / scheduling style) Verdict: ✅ Passed
🟡 Round 2 (R2) – DSA + LLD Mix This round felt like problem solving wrapped inside a design discussion. Edge cases around overlaps and ordering Efficient use of sorting + greedy logic LLD-style Part: Designed an Attendance Management System Entities, APIs, and data flow discussion Handling scenarios like multiple check-ins, late entries, etc. More emphasis on logic correctness than heavy OOP theory Verdict: ✅ Passed
🔵 Round 3 (R3) – HLD (System Design) Focus: Designing a scalable backend service which interacts with LIVE running applications. APIs, databases, and scaling strategy Handling failures & bottlenecks Discussing design trade-offs Verdict: ✅ Passed
🟣 Round 4 (Hiring Manager)
Focus: Past project experience Ownership & decision-making Team fit and communication No deep DSA/LLD/HLD grilling here Verdict: 👍 Went well
Final Verdit - Selected
Comp Details - https://leetcode.com/discuss/post/7537147/offer-evaluation-microsoft-l61-serviceno-8tbc/
Interview Questions (3)
Disjoint Set (Union-Find) Problem
A problem based on the Disjoint Set (Union-Find) data structure.
Interval Merging/Scheduling Problem
An interval-based problem, likely involving merging or scheduling scenarios.
Design an Attendance Management System
Designed an Attendance Management System. The discussion covered entities, APIs, data flow, and handling specific scenarios such as multiple check-ins and late entries. Emphasis was placed on logic correctness rather than extensive OOP theory.
Preparation Tips
Posts from this community genuinely helped me during prep.