Shopify Interview Questions
Practice 82 real Shopify interview questions for 2026 — actual interview prompts with detailed solutions to accelerate your interview preparation. This collection emphasizes Coding & Algorithms and System Design first, then Analytics & Experimentation, Data Manipulation (SQL/Python), ML System Design, and Behavioral & Leadership, and covers roles including Software Engineer, Data Scientist, Machine Learning Engineer, and Data Engineer. Expect a coding-heavy process with pair-programming and system-design deep dives for engineers, product-metric case studies and experiment design for data roles, and take-home or modeling tasks for ML positions. For Software Engineers anticipate URL-shortener and multi-rover controller designs, caching and assignment systems, and live pair-programming on algorithmic problems. Data Scientists should prepare for product-measurement cases (piracy and App Store metrics), funnel-debugging, experiment design, analytics/BI hardening, and occasional algorithmic implementations like LRU caches. Machine Learning Engineers will see applied-system problems: fraud detection, hierarchical product classification, delivery-time prediction, simulation-based fleet/robot problems, and labeling strategy design. Data Engineers encounter session-analytics SQL and pipeline robustness. To prepare, blend timed coding practice, system-design sketching, product-metrics case work, and end-to-end ML system thinking.
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Compute Jaccard Similarity for Lists
Implement a Python function to compute the Jaccard similarity between two lists of strings. `python def jaccard_similarity(a: list[str], b: list[str])...
Demonstrate Git and build workflow
End-to-End Git and Tooling Workflow (Feature Branch + CI) Context You are given a repository URL and asked to demonstrate a pragmatic, reproducible wo...
Describe Your Path and Key Data Science Project
Describe Your Path and Key Data Science Project Onsite Behavioral + Project Deep Dive (Data Scientist) Context You are in an onsite behavioral round f...
Implement an LRU Cache
This question evaluates a candidate's competency in designing efficient cache mechanisms and managing time and space complexity for operations require...
Simulate robot moves on a grid
You are given an m x n grid and a robot that starts at position (r, c) (0-indexed). You are also given a string commands consisting of characters 'U',...
Implement a Capacity-Bounded Cache
This question evaluates a candidate's ability to design and implement an efficient capacity-bounded in-memory key-value cache, assessing understanding...
Implement Cosine Similarity Function for String Vectors
Scenario Technical phone screen in Python; assess ability to implement similarity metric. Question Implement a Python function that computes the cosin...
Describe Your Professional Growth and Key Learning Experiences
Describe Your Professional Growth and Key Learning Experiences Behavioral Interview — Life Story: Growth and Readiness Scenario A 60-minute “life stor...
Implement an LRU Cache
Problem: LRU Cache (LeetCode 146) Design and implement a Least Recently Used (LRU) Cache that supports the following operations in average O(1) time. ...
Calculate Week-over-Week Revenue Change Using SQL
transactions +----+---------+---------+------------+ | id | user_id | revenue | order_date | +----+---------+---------+------------+ | 1 | 101 | ...
Identify Pirate-Themed Custom Themes Using Jaccard Similarity
Scenario Engineering receives two lists and must identify custom themes that look like Pirate themes. Question a) Write a Python function that compute...
Analyze Pirate Theme Usage Growth Over Time
themes +----+--------------+-----------+ | id | name | is_pirate | +----+--------------+-----------+ | 1 | Pirate Red | true | | 2 | ...
Analyze Pirated Theme Usage Impact
An e-commerce platform lets shops install marketplace themes. Some themes are paid, and a shop should have a valid purchase/license before using a pai...
Implement URL Shortening Codec
Implement a small in-memory URL-shortening component in a pair-programming interview. Expose two methods: shorten(long_url: str) -> str, which returns...
Simulate a rover fleet
This question evaluates skills in simulation design, state management, grid-based movement logic, and handling constraints such as obstacles, boundari...
Write SQL for session analytics
This question evaluates SQL proficiency and data engineering competencies, including deduplication, joins, time-series aggregation, rolling-window cal...
Calculate Pirated Usage and Revenue Loss
You are analyzing theme piracy on an e-commerce platform. Assume the analysis window is 2023-01-01 through 2023-12-31, all timestamps are stored in UT...
Implement a multi-rover Mars controller
Problem Build a small command-line “Mars Rover Controller” program. Single rover (v1) A rover starts at coordinate (0, 0) on an infinite 2D grid and i...
Calculate Jaccard Similarity Score for Two String Lists
Scenario During pair programming, the interviewer asks you to compare two lists of merchant tags and quantify their similarity. Question Implement a P...
Determine Growth of Pirated Theme Installations Over Years
merchants +-------------+------------+ | merchant_id | join_date | +-------------+------------+ | 1 | 2020-01-02 | | 2 | 2020-03-...