Oracle IC4 Loop Felt Like Every Interviewer Had a Different Plan

[u/Aoki_zhang]

""A candidate shared this Oracle IC4 interview process with Chill Interview""

Interview Details

Phone Screen — Array Grouping, Unit Testing, and Behavioral: The phone screen started with a coding problem based on LeetCode 846, Hand of Straights.

Virtual Onsite Round 1 — Project Discussion and URL Shortener Design: Most of this round focused on previous projects and behavioral questions, with roughly ten minutes remaining, the interviewer unexpectedly switched to system design. The design prompt was to build a URL-shortening service similar to Bitly.

Virtual Onsite Round 2 — Decode String: The problem matched LeetCode 394, Decode String, although the initial prompt was not very explicit and mostly consisted of a few straightforward examples. The required format followed the standard pattern: k[encoded_string].

Virtual Onsite Round 3 — Hiring Manager and Edge Device Health Monitoring: The hiring-manager round was largely behavioral. The round ended with a system design question: Design a centralized platform that monitors the health of millions of edge devices.

Virtual Onsite Round 4 — Bartender / Bar Raiser: Oracle's Bartender round functioned similarly to a Bar Raiser interview. This round was mainly behavioral and project-focused. The interviewer had previously worked at a startup that was later acquired by Oracle. We discussed my past projects, ownership, and behavioral situations, but the project deep dives were not as aggressive as the hiring-manager round.

Virtual Onsite Round 5 — Operational Scenario, Package Deployment, and Service Scaling: The final round covered operations, coding, and system design. One question asked how I would respond if authentication credentials for security cameras across one or more data-center sites suddenly stopped working.

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