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Technical Interviews

Computer Science Fundamentals Interview

Duration: 60 minutes

For this interview, you’ll work through a series of algorithmic programming problems that build on each other in complexity. We use HackerRank as our coding environment, so we encourage you to familiarize yourself with it in your preferred language beforehand.

To prepare, we recommend you:

Review core data structures (arrays, linked lists, trees, graphs, hash maps) and common algorithmic techniques (recursion, sorting, searching, dynamic programming)

Practice writing clean, working code - problems will progress in difficulty, so strong fundamentals matter more than memorizing specific solutions

Get comfortable evaluating the time and space complexity of your code and explaining your trade-offs

We’re evaluating your problem-solving approach, coding fluency, and ability to communicate your thinking - not memorization of specific problems. Resources like

interviewcake.com⁠

and “Cracking the Coding Interview” are good starting points for practice.

Note: AI tools (i.e. Copilot, ChatGPT, etc.) are not permitted during this interview.

Front-End Coding Skills

Duration: 60 minutes

In this interview, we will build a small front-end application. While React is strongly preferred, you can use the framework you are most comfortable with.

Please prepare for this interview beforehand with a skeleton app setup. You will share your screen with the interviewer while developing on your device. Feel free to use the tooling you prefer. Eitehr set this up for local development on your machine or through one of these web services:

https://codepen.io/⁠

https://jsfiddle.net/⁠

, or

https://codesandbox.io/⁠

While part of this interview is a coding task, do not rush to write code. Take your time to understand the statement and solution you are solving for clearly. Focus on the decisions and quality of the code.

System Design & Architecture

Duration: 60 minutes

In this interview, we will design a back-end system; the task is usually open-ended. You are expected to clarify the requirements, decompose the problem, and propose a solution using the patterns and building blocks from your domain. The interview aims to check your analytical thinking, your ability to solve open-ended problems and make the right tradeoffs, and your understanding of architectural patterns and best practices.

Recognizing non-functional requirements, such as performance, scalability, durability, fault tolerance, security, and latency, and suggesting pragmatic and practical solutions is important.

We will use

Excalidraw⁠

Miro⁠

or HackerRank’s

virtual whiteboard⁠

for this interview. Treat it as a whiteboard and add as much as you like- it does not need to be structured. It is a tool to help you document and communicate your design to the interviewer.

Want to print your doc?
This is not the way.

Try clicking the ··· in the right corner or using a keyboard shortcut (

CtrlP

) instead.