Known as the original mobile payment processing app, Square (now Block Inc.) has been making waves since its first launch because of its high adoption rates. It could get such reasonable rates because it lets businesses accept card payments without relying on cash or peer-to-peer payment apps.
As a data engineer, your work will impact numerous stakeholders across the company. So get ready for an extensive interview process and some particularly grilling Square data engineer interview questions.
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You'll need a well-rounded strategy when preparing for Square data engineer interview questions. To help you out, in this article, we’ll cover:
Depending on the department you apply for, your duties as a data engineer at Square will vary. For instance, if you join the marketing team as a data engineer, you’ll help develop foundational data and reporting infrastructure to accelerate the company’s growth and boost revenue.
You’ll work with various teams to create great data pipelines and dashboards and develop processes that’ll pull together various complex sets of data stores to guide Square in making the correct large investment decisions.
Your day-to-day responsibilities will include:
As you can see, this is just one example. When preparing for Square data engineer interview questions, keep the responsibilities that accompany your role in mind, as they will play an essential role in the type of behavioral questions asked.
Typically, the interview process for a data engineer at Square is something like this:
Ensure that you research the company thoroughly before appearing for the interview because many Square data engineer questions will be asked based on that. It would be best to study Square using a holistic approach that extends beyond the fundamentals of the role. You can also read how to prepare for data engineer interviews to get interview-ready.
Don’t forget to prep your resume as well with the help of the data engineer resume guide.
As you gear up for your upcoming interview, here are some examples of the kind of Square data engineer interview questions you can expect:
Find: The number of customers that signed up in January 2020 who had a combined (successful) sending and receiving volume greater than $100 in their first 30 days.
Find: Choose the top 3 departments with at least ten employees and arrange them according to the percentage of their employees making over 100K in salary.
Find: A query that’ll return the two students with the closest test scores with the score difference. Also, if there is more than one student with the same minimum score difference, choose the student name combination that is higher in the alphabet.
Find: A query that returns true or false whether or not each user has a subscription date range that overlaps with any other completed subscription.
You can also look at some top Data Engineer Interview Questions for practice.
Further, these are the technologies Square uses, so practice questions based on these as well:
To kickstart your prep, here are 50+ SQL Interview Questions and Tips on How to Crack Them and Square Interview Questions.
According to Glassdoor.com, a Square data engineer makes $111,172 per year, on average. This is, naturally, not the final figure because the Square data engineer salary package depends on a number of factors such as location, experience, job role, and so on.
Here’s how Square compares with the top tech companies in terms of salary:
Remember to brush up your SQL and Python skills, and be prepared to face several interviews to become a Square data engineer. Owing to its startup-like work environment, Square has a lot to offer in terms of growth opportunities, and you’ll get to be a part of an elite group of engineers.
Q1. What questions are asked in data engineer interviews?
When preparing for a data engineer interview, you can expect questions such as What is meant by Balancer in HDFS? Why does Hadoop use Context object? Explain the importance of Distributed Cache in Apache Hadoop.
Q2. How to prepare for a Square interview?
When preparing for a tech interview at Square, give yourself at least one week to prepare for behavioral questions. Research the interview questions asked before and start practicing. You can practice mock interviews to be better prepared.
Q3. How long does the Square interview process take?
On average, the entire interview process at Square takes around 4-6 weeks to complete.
Q4. How to prepare for a big data engineer interview?
When preparing for a big data engineer interview, you’ll need to develop skills such as Python, SQL, data modeling, data pipelines, system design, etc.
Q5. What’s the average Square data engineer salary?
On average, the Square data engineer's salary is $111,172 per year (as per glassdoor.com).
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