Factset

Role: Senior Software Engineer

College: Not Specified

Interview Date: July 2024

Interview Type: Full-Time

Result: Offer

Difficulty: Not Specified

Rounds: 3 rounds

Topics Asked: Project Architecture, Coding (Trie, Map), Multithreading, Executor Service, Authorization, Reflections, System Design (High Memory/CPU Utilization), HTTP Methods, Behavioral

Experience:

This experience is for a Senior Software Engineer role.

Round 1: Technical Interview

• Questions on Current Project: Discussion about the candidate's current project and its architecture.
• Coding Question: Given a file and a word, find the number of occurrences of the word in each line. Suggested approach using TRIE, and an alternative approach using a map. Explanation of time complexities for both.

Verdict: Selected.

Round 2: Technical Interview

• Multithreading and Executor Service.
• Authorization and reflections.
• Handling high memory or CPU utilization: Discussion on experiences with heap dump and thread dump analysis.

Verdict: Selected.

Round 3: Hiring Manager Round

• Discussion about current work and role.
• Reasons for leaving the previous company (Walmart).
• Hiring Manager's advice on the complexity and time required to understand the work (estimated 2 years).
• Difference between POST and PUT HTTP methods.

Verdict: Selected, received an offer.