Coinbase | SWE Intern | SF | Offer | Summer 2020

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February 15, 20200 reads

Summary

I successfully navigated the interview process for a SWE Intern position at Coinbase in San Francisco for Summer 2020 and ultimately received an offer. The interview included initial online assessments, an HR phone call, and two technical rounds, one focusing on front-end development and another on data structures and system design.

Full Experience

I applied to Coinbase on December 23rd, and shortly after, I received a link to complete a Triplebyte test. I opted for both front-end and back-end domains, answering 35 questions for each test on December 29th.

My second round was a 30-minute HR phone call where they asked general questions about my resume, projects, and past experience. We also discussed my interest in Coinbase, other offers I might have, and how I learned about the company.

The third round was a 1-hour screen share technical interview. Since I had front-end experience, the interview focused on that domain. I was asked to code a part of the Coinbase Pro UI using HTML, CSS, and React on Codepair by Codepen. Unfortunately, I faced some technical difficulties and couldn't see my code output, which was quite frustrating for a front-end task. I promptly sent an email explaining the situation and was rescheduled for another coding round.

The rescheduled third round, 'part 2', was also a 1-hour screen share technical interview. This time, the focus shifted to LeetCode-style questions. I was given one debugging question and one coding question: to create a hashmap using an array. Additionally, there was a system design question about an e-commerce website.

Finally, I received an email asking for a convenient time to call, and they extended an offer over the phone. I was thrilled to get in! They detailed all the offer specifics during the call. My overall interview experience was very positive; the recruiters were always quick to respond, and during the screen share round, my interviewer was incredibly helpful, guiding me to analyze my code's efficiency and putting me at ease despite my nervousness.

Interview Questions (3)

Q1
Coinbase Pro UI Development
Other

Code a part of Coinbase Pro UI using HTML, CSS, and React.

Q2
Implement Hashmap using Array
Data Structures & Algorithms

Create a hashmap using an array.

Q3
E-commerce Website Design
System Design

Design an e-commerce website.

Preparation Tips

After clearing the HR round, I realized I needed to intensely study React, as I wasn't proficient enough to feel comfortable using it in an interview setting. I was relieved when the second technical round allowed me to use Python for coding. I also reviewed Glassdoor for insights, finding that many questions were design-based. With very limited time, I went through all the design questions and solutions available on LeetCode.

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