Jio Hotstar Interview L4 | Rejected
Summary
I interviewed for an L4 position at Jio Hotstar and was rejected after three rounds covering low‑level design, high‑level design, and a hiring‑manager discussion.
Full Experience
Sharing my interview experience with Jio Hostar
Round 1 : LLD Round Problem statement : Design a service which talks to LLM, something like backend service for ChatGPT chat interface. It should take prompt, talk to LLM and give back the response. Sessions should be managed. Also gives the options to index files. Expectation was to write pseudo code and answer some high level system design questions as well.
Round 2: HLD Round Problem Statement : Design feature for showing current viewing numbers on a streaming video. Both writing the data into backend and reading the data from backend was covered.
Round 3: Hiring Manager
Mostly typical questions - Most difficult project. What kind of metrics do you use in your systems, how to handle failure, debugging, oncall process. role in the team. What happens in your 1:1 calls. How does PR reviews etc work?
Design Cart management system, functional and non functional requirements, what all metrics you want to see. Which database.
Overall Verdict: Rejected Last round didn't go as well, wasn't fully prepared.
Interview Questions (3)
LLM Backend Service Design
Design a service which talks to an LLM, similar to a backend service for a ChatGPT‑like interface. The service should accept a prompt, forward it to the LLM, and return the response. It must manage user sessions and provide an option to index files.
Streaming Video Current Viewing Count Feature
Design a feature that displays the current number of viewers for a streaming video. The solution should cover how to write the viewing count data to the backend and how to read it efficiently for display.
Cart Management System Design
Design a cart management system, outlining functional and non‑functional requirements. Discuss which metrics should be tracked, how to handle failures, and choose an appropriate database.