Block

Software Engineer (Internship) Interview Experience

January 1, 2022

Positive ExperienceGot Offer

Process

This happened a while ago in early 2022.

Codesignal OA:

Onsite (two one-hour sessions back to back)
Recruiter call
Team matching wait
Hiring manager

The style of interview for the onsite is LeetCode type.

Questions

Depth-First Search - Huffman Tree

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Interview Statistics

The following metrics were computed from 15 interview experiences for the Block Software Engineer (Internship) role in United States.

Success Rate

33%

Pass Rate

Block's interview process for their Software Engineer (Internship) roles in the United States is fairly selective, failing a large portion of engineers who go through it.

Experience Rating

Positive60%

Neutral33%

Negative7%

Candidates reported having very good feelings for Block's Software Engineer (Internship) interview process in United States.

Block Work Experiences

Good first job

Software Engineer • Current Employee

San Francisco, California, United States

Pros: My coworkers are great. I really enjoy working with my team, and we get along very well. Both my manager and his manager were previous engineering leads who worked up to senior positions, which I really like.

Cons: Documentation is not the best, and there's a lot of "tribal knowledge." Some growing pains are due to recent expansions. For example, a lot of tools that worked while we were smaller aren't working so well now (though this is a work in progress to build new ones).

Software Engineer • Current Employee

San Francisco, California, United States

Pros: My coworkers are great. I really enjoy working with my team, and we get along very well. Both my manager and his manager were previous engineering leads who worked up to senior positions, which I really like.

Cons: Documentation is not the best, and there's a lot of "tribal knowledge." Some growing pains are due to recent expansions. For example, a lot of tools that worked while we were smaller aren't working so well now (though this is a work in progress to build new ones).

Benefits and work life balance but no direction

Software Engineer • Former Employee

Los Angeles, CA

Pros: There is a good work-life balance, remote work options, great benefits, and post-employment perks.

Cons: It was hard to get things done because the points of contact were hard to figure out, and there was politics.

Benefits and work life balance but no direction

Software Engineer • Former Employee

Los Angeles, CA

Pros: There is a good work-life balance, remote work options, great benefits, and post-employment perks.

Cons: It was hard to get things done because the points of contact were hard to figure out, and there was politics.

Lucky Managers, Layoff Fears

Software Engineer • Current Employee

Saint Louis, Missouri, United States

October 2, 2025

Pros: Can get lucky and have great managers.

Cons: Block Isn’t Afraid of Layoffs

Lucky Managers, Layoff Fears

Software Engineer • Current Employee

Saint Louis, Missouri, United States

October 2, 2025

Pros: Can get lucky and have great managers.

Cons: Block Isn’t Afraid of Layoffs

Good first job

Software Engineer • Current Employee

San Francisco, California, United States

Pros: My coworkers are great. I really enjoy working with my team, and we get along very well. Both my manager and his manager were previous engineering leads who worked up to senior positions, which I really like.

Cons: Documentation is not the best, and there's a lot of "tribal knowledge." Some growing pains are due to recent expansions. For example, a lot of tools that worked while we were smaller aren't working so well now (though this is a work in progress to build new ones).

4.0
Good first job
Software Engineer • Current Employee
San Francisco, California, United States
August 8, 2016
Pros: My coworkers are great. I really enjoy working with my team, and we get along very well. Both my manager and his manager were previous engineering leads who worked up to senior positions, which I really like.
Cons: Documentation is not the best, and there's a lot of "tribal knowledge." Some growing pains are due to recent expansions. For example, a lot of tools that worked while we were smaller aren't working so well now (though this is a work in progress to build new ones).

Benefits and work life balance but no direction

Software Engineer • Former Employee

Los Angeles, CA

Pros: There is a good work-life balance, remote work options, great benefits, and post-employment perks.

Cons: It was hard to get things done because the points of contact were hard to figure out, and there was politics.

4.0
Benefits and work life balance but no direction
Software Engineer • Former Employee
Los Angeles, CA
March 8, 2026
Pros: There is a good work-life balance, remote work options, great benefits, and post-employment perks.
Cons: It was hard to get things done because the points of contact were hard to figure out, and there was politics.

Lucky Managers, Layoff Fears

Software Engineer • Current Employee

Saint Louis, Missouri, United States

October 2, 2025

Pros: Can get lucky and have great managers.

Cons: Block Isn’t Afraid of Layoffs

4.0
Lucky Managers, Layoff Fears
Software Engineer • Current Employee
Saint Louis, Missouri, United States
October 2, 2025
Pros: Can get lucky and have great managers.
Cons: Block Isn’t Afraid of Layoffs

Block Interview Questions

Rotating the Box

Simulate a box tilting to the right, causing stones to fall until they hit obstacles or the floor. Re-arrange the characters in a given grid to reflect the resulting state of the box.

ArraysStringsTwo Pointers

Available Captures for Rook

On a chessboard, find how many pawns a rook can capture in one move. The rook can move horizontally or vertically until it hits an obstacle or the edge of the board.

Count Nice Pairs in an Array

You're given an array of numbers. Find how many pairs of numbers in the array satisfy a specific 'nice' property determined by reversing their digits and comparing them.

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