Square is one of the most popular digital payments and financial services companies in the US. As of 2020, its total assets and revenue exceeded $9 Billion. Square employs just over 5,000 employees and consistently ranks in the list of best tech companies to work for. It offers an exciting and culturally diverse work environment that greatly values inclusion and integrity.
Being a billion-dollar tech startup, Square consistently hires top engineering talent to power its financial services and digital payments. The interview process is standard and seeks to evaluate candidates’ command in object-oriented programming languages, data structures, algorithms, and concepts in distributed systems.
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If you are preparing for an interview with Square, this article will give you an idea of the type of questions to expect at Square’s technical interview. This article will cover interview questions on coding, systems design, as well as behavioral interview questions.
Here’s a quick look at what we’ll discuss:
The Square technical interview process fundamentally tests your programming capabilities as an engineer. The interview process is pretty standard, consisting of coding rounds, distributed systems rounds, and behavioral and soft-skill rounds. Let’s take a look at the interview process in detail.
This is an informal round where a recruiter will get in touch with you after you’ve applied for the position through LinkedIn or any other platform. You’ll be asked a few basic questions on your experience, past organizations you’ve worked with, your skillset, and compensation details. If your profile aligns with the requirements of the position, you’ll be invited to the technical phone screen interview.
This round fundamentally aims to test if your programming and problem-solving skills are up to standard. Square delivers services at scale, and requires its core tech team to come up with optimal solutions to ensure seamless delivery of its services.
The technical phone screen is usually a remote round where your knowledge of data structures and algorithms is evaluated through one or two coding problems. This round involves writing code that executes the solution optimally. If your problem-solving skills are up to standard post evaluation, you’ll be invited for the on-site interview.
The on-site interview is the final stage that consists of a series of interviews covering coding, systems design, and behavioral and soft-skill questions. A typical software engineer on-site interview at Square will include:
This section will cover sample interview questions that you can expect at the Square interview. It will cover coding, systems design, and behavioral interview questions.
Coding questions essentially test your knowledge of core data structures and algorithms. Below are the important concepts you need to be well-versed with for the coding interview at Square:
Below are some sample coding interview questions asked at the Square interview:
For more coding interview questions along with the most optimal code solutions, check out our Problems Page.
Square’s service offering is built on scalable applications and systems that reach millions of users each day. At the technical interview, your knowledge of core distributed systems is closely evaluated. Below is the list of systems design topics that are important for the Square interview:
Below are some sample Square interview questions on distributed systems design:
Behavioral traits and soft skills are also important aspects that are evaluated in technical interviews. Behavioral questions are usually around:
Below are some sample Square behavioral interview questions:
In order to crack the Square technical interview, your prep has to be thorough. These tips will help you ace your upcoming Square software engineer interview:
Q. How important are systems design interviews at Square?
Systems design is an integral component of the interview process. There can be two systems design rounds in the on-site round, with questions mostly around scalable systems and applications, network protocols, databases, caching and sharding, and systems design case studies. Systems design interviews at Square are more critical for senior developer and managerial (engineering management) positions.
Q. What type of questions are asked at Square’s behavioral interviews?
Behavioral interview questions asked at Square’s technical interview are mostly around past experiences with challenging projects, relationships with coworkers and superiors, work-life balance, productivity, and general workplace-related situations. You can also be asked questions about your strengths and weaknesses and how you’d manage stress and pressure in the face of demanding work projects.
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