Expedia SDE-2 — OA, 2 DSA, LLD OTP system, HM; offer

• Current Position: SDE2 at US based SAAS company
• YOE: 3+ years
• Recruitment: Recruiter reached out through Naukri.
• Role: SDE-II
• Result: Offer

Online Test : Received HackerRank based OA link which consists of 3 questions need to solve in 90 minutes. 1 question was implementation based, other was DP (easy to medium) and third was graph (medium hard).

After 1 week received call from HR. Total of 4 rounds conducted, two on same day and other 2 three days later.

Technical Round 1 : DSA round. HackerRank compiler. 2 questions, complete code + run over test cases.

1. https://leetcode.com/problems/subarray-sum-equals-k/description/
2. Similar to https://leetcode.com/problems/letter-combinations-of-a-phone-number/

Technical Round 2 : DSA round. 2 questions.

1. https://leetcode.com/problems/sort-colors/description/
2. Tree question, extension of https://leetcode.com/problems/delete-nodes-and-return-forest/description/

Technical Round 3 : LLD. Design an OTP-based notification system. Explored design patterns, class structure, methods; wrote interface, service class, method implementations; scenario-based follow-ups on adapting design with patterns.

Technical Round 4: Hiring Manager round centered around current project. Deep dive into every component, technical choices, architecture, design decisions and technology rationale. Scenario-based questions answered with STAR.

After a week received call from recruiter regarding selection. Received offer by next week. All interviewers and HR very helpful.