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BrowserStack Backend Engineer Interview Questions
& Process

Real candidates share what happened, how many rounds they had,
and how the experience turned out.

Based on 6 interview experiences · FREE TO READ

3.5 Rounds average
Difficult Typical difficulty
100% Positive experience

Candidate interview experiences

First-hand accounts from people who interviewed at BrowserStack.

Showing 3 of 6
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Backend Engineer

Engineering · nearly a year ago

Entry Difficult Positive experience No offer 3 rounds
Interview process
Technical screen Technical screen Onsite Background check Offer
Interview formats
Technical Coding System Design Behavioral

The first stage was a technical assessment focusing on core engineering and CS fundamentals like Computer Networks, OOPS, Pseudocode, Cloud, Databases, and other basic concepts and project collaboration tools. The goal was to check basic clarity and problem-solving. Next, there was a 2-hour Machine Coding round where I had to implement a log monitoring system like tail -f, with constraints like no external packages, single page reload, and petabyte scalability. This tested coding, scalability, and system design. Finally, a Managerial + HR round mixed technical depth with behavioral evaluation. It started with introductions, then dove into my internship experiences, followed by Node.js and system design questions, and concluded with behavioral/situational questions for communication, cultural fit, and teamwork.

Confirmed questions1 question
  • Questions about my entire resume, especially my internship experience, and some behavioral questions as well.
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Backend Engineer Intern

Engineering · a year ago

Intern Easy Positive experience No offer 1 round
Interview process
Technical screen
Interview formats
Technical

The role is a remote backend engineer intern. The first stage was a test on Hackerearth with 22 multiple-choice questions. The questions were about OS, Networking, DBMS, etc. Everyone's questions were different. No coding questions were asked in this stage. The interview process is still ongoing.

Confirmed questions1 question
  • SQL queries, FTP, shell commands, and other technical topics were covered.
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Backend Developer

Engineering · a year ago

Mid Average Positive experience Accept offer 4 rounds
Interview process
Recruiter call Technical screen Technical screen Offer
Interview formats
Technical Coding Behavioral

I got a call from HR after my resume was shortlisted, talking about the next steps and when the interviews would be. Then, I had to build a backend server that basically does what the tail -f command does, which was a challenge I saw in BrowserStack interviews. I built it and explained it. A week later, I talked to a Senior SDE about my resume, technical stuff, and projects. It went fine, and HR called again to say I passed and asked if I wanted to move forward with the offer, which I did.

Confirmed questions3 questions
  • How would you develop a backend server to mimic the tail -f command?
  • Can you tell me about your resume?
  • What technical concepts are you familiar with and what projects have you worked on?

BrowserStack Backend Engineer Interview Questions

Quoted word for word from BrowserStack interview reports.

How would you develop a backend server to mimic the tail -f command?

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For the machine coding round, could you implement the tail -f functionality?

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The Director of Engineering presented a problem: Given a large file with process IDs, start times, and end times, and a specified timeout, how would you print all process IDs that exceeded that timeout?

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The second machine coding round involved building a browser controller. Can you describe that?

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During the interview with the Engineering Manager, we discussed a MapReduce problem. Can you elaborate on that?

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How would you approach solving this real-world application-based problem?

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Describe your depth of knowledge regarding the products you've previously developed.

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What technical concepts are you familiar with and what projects have you worked on?

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Formats, difficulty and experience

Across all 6 BrowserStack interview reports.

Interview formats

Coding 38.1%
Technical 28.6%
Behavioral 23.8%
Case 4.8%
System Design 4.8%

Interview difficulty

Easy 16.7%
Average 33.3%
Difficult 50%

Candidate experience

Positive 100%