Square/Block Software Engineer Interview Questions
146+ Square/Block Software Engineer interview questions drawn from real candidate reports. Sources include 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. Questions span every stage of the Square/Block Software Engineer loop: OA, phone screen, system design, behavioral, and onsite coding.
What to Expect in the Square/Block Software Engineer Interview
The Square/Block Software Engineer interview process typically runs 4 to 6 rounds depending on seniority level. Based on candidate reports in the LeakCode database, the loop usually includes a resume review, an online assessment or coding phone screen, one or more technical rounds, a system design round (for senior and above), and a behavioral or values round.
Difficulty skews toward medium and hard LeetCode-style problems in the coding rounds. System design questions test breadth (component selection, scaling, trade-off reasoning) more than deep implementation. Behavioral questions are tied to the company's stated values and principles.
Square/Block Software Engineer Questions (Sample)
Software Engineer Interview Experience Decoding Encoded Strings
Got asked this question for an interview: ``` """ Given an encoded string, return its decoded string. The encoding rule is: k[encodedstring], where the encodedstring inside the square brackets is bein
Coin Grid
There is an n×n grid whose each square is empty or has a coin. On each move, you can remove all coins in a row or column. What is the minimum number of moves after which the grid is empty? # Input Aft
Does anyone see a better way to do this problem?
constraints are `N <= 1000` and `-1000 <= node value <= 1000` [https://leetcode.com/problems/maximum-distinct-path-sum-in-a-binary-tree/description/](https://leetcode.com/problems/maximum-dis
Square Internship Online Test for SDE Positions
There are three questions in total, all very simple. Two are BFS questions, and the other is to simulate a character moving on a 2D grid.
Can anyone help with this question thinking process...✍️
We are initially given a integer number n. Find number of pairs (a,b) such that a*b is a perfect square. 1 <= a,b <= n 1 <= n <= 100000 Example: n =...
Block SWE Intern Interview Experience
Timeline: 8/19 - OA 9/23 - First round technical invite 10/2 - First round 10/3 - Second round technical invite 10/13 - Second round 10/14 - Third round technical invite 10/20 - Third round 10/22 - Re
Interview Question
John found six dominoes. A domino is a rectangular tile with a line dividing its face into two square halves. Each half is marked with a number of spots. John...
NxN Magic Square
You are given an integer n. Generate a n x n magic square. A n x n magic square is a n x n grid filled with distinct numbers in the...
Please tell where I am Wrong , it Failed on private Test case
The problem is an over simplification of the flow of liquid. - A terrain is given as a grid of cells of random elevations. The grid is always odd sized...
ZETA | 1st Round DSA
ROUND 1 (DSA ) Problem 1 https://cses.fi/problemset/task/1194 Q) You and some monsters are in a labyrinth. When taking a step to some direction in the labyrinth, each monster may simultaneously take one as...
SOLVE THE DSA QUESTION ASKED IN FAANG
A mouse is trying to get from its starting position S to a treat T, while moving only on land cells and staying as far away as possible from the...
SDE3 | Machine Coding round | Kotak Bank | LLD | Data base design
Below problem statement was given to me and expectation was to come up with a proper working code for it. BattleShip Game Design and implement a battleship game to be played between...
Imbue Online Assessment
Problem Statement Mrs. Qiu is planning to practice orienteering. The area where she\'ll practice is a rectangular field divided into unit squares. You are given its description as a String[] field....
Baton - CoderPad - Woodworking puzzle questions
Hi guys, Got stuck for this CoderPad screen and I\'m not sure how to solve it for when the blocks are not regularly shaped (like L or U or hollow shapes)....
Min operations
choose a number from array and increase it or decrease it by 1 the number should be non negatuve after applying the operation these two operation can be performed any...
Difficulty Breakdown
17
easy
8
hard
6
medium
Based on 146 questions with difficulty labels from candidate reports.
Interview Rounds
Here is how the Square/Block Software Engineer questions in the LeakCode database break down by interview round, based on what candidates reported:
| Round | Questions in Database |
|---|---|
| oa | 51 |
| phone screen | 16 |
| onsite | 6 |
| technical | 3 |
| system design | 3 |
| coding | 2 |
Most Common Topics
Question Recency
3
2026
3
2025
27
2024
23
2023
Question counts by interview year, based on candidate-reported dates.
How to Prepare for the Square/Block Software Engineer Interview
Use the LeakCode question database as your primary research tool. Filter by role (Software Engineer), then by round type to focus your prep on the specific stages in your upcoming loop. Sort by recency to see what 2026 candidates actually faced.
- Start with questions from the last 12 months. Interview processes change and recent data is the strongest signal.
- Cross-reference questions that appear in multiple sources (1p3a, Blind, Glassdoor). Multi-source confirmation means a question has stronger recurrence probability.
- For system design rounds: focus on the question patterns, not individual questions. The same design principles recur across many prompts.
- For behavioral rounds: map your experiences to the company's stated values before the interview. Most behavioral questions at top companies are derivatives of a small set of core leadership competencies.
FAQ
How many Square/Block Software Engineer questions are in the database?
146+ questions from verified candidate reports. The count grows as new reports are scraped daily from 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode.
Are these questions from real Square/Block interviews?
Yes. All questions are sourced from actual candidate interview reports, not generated by AI. Each entry links back to its source URL where available, and questions are tagged with the year and round reported by the candidate.
How current is this data?
LeakCode updates daily. The database is filtered to exclude duplicate and low-quality entries. You can filter by interview year to focus on recent cycles.
Does LeakCode cover Square/Block OA questions specifically?
Yes. The database includes online assessment questions tagged with round type. See the Square/Block OA page for a dedicated view.
Related: Square/Block All Questions · Square/Block OA Questions · Browse All Companies · Data Sources