BrowserStack Software Engineer Backend interview questions

Technical assessment This round mainly tested my core engineering and CS fundamentals. Topics included: Computer Networks OOPS concepts Pseudocode Cloud technologies Databases Other fundamental conceptsProject collaboration tools The questions were designed to check clarity of basics and problem-solving ability. 2 Machine Coding In this 2-hour hands-on coding round, I was given a problem statement to implement in front of the invigilator. Task: Build a log monitoring system (similar to the tail -f command in Linux). Key Constraints: No external packages allowed Page should reload only once, then auto-update without refreshing Solution should scale to petabytes of data Could ask clarifying questions during the round This round was challenging because it not only tested coding but also scalability thinking and real-world system design approach. 3 Managerial + Hr round This was a mix of technical depth and behavioral evaluation. Began with a self-introduction Discussion on my internship experience – problems I solved, how I approached them, and my learning Follow-up questions on Node.js and system design Wrapped up with behavioral and situational questions to evaluate communication, cultural fit, and teamwork