Shopify Coding Challenge: Complete Prep Guide (Interns and New Grads, 2025)

shopify coding challenge

Breaking into Shopify is exciting but the Shopify coding challenge often stands between candidates and their dream role. This assessment tests your problem-solving, coding style, and communication skills in real-time or take-home settings. Whether you’re an intern, new grad, or early-career engineer, knowing what to expect and how to prepare makes all the difference.

Quick prep in 3 steps (snippet-friendly)

  1. Solve common algorithm problems (arrays, strings, hash maps) under time pressure.
  2. Focus on role-specific skills: SQL joins for data roles, Playfair cipher for interns, DOM manipulation for front-end.
  3. Prepare structured stories for the Life Story interview, a unique Shopify format.

What Is the Shopify Coding Challenge?

Shopify uses the coding challenge as part of its multi-stage hiring process. Candidates typically go through:

  • Take-home assignments (2–3 hours): These often involve encryption, parsing, or small system design problems. You can complete them at your own pace within a set deadline.
  • Live CoderPad sessions (30–60 minutes): Here, you solve coding problems while sharing your screen with an interviewer. You need to code, explain your thinking, and handle edge cases in real time.
  • Aptitude or multiple-choice assessments: These test programming basics, logical reasoning, and sometimes debugging skills.

Once the technical stage is complete, candidates also face the Life Story interview, which evaluates personal growth, teamwork, and cultural fit.

👉 The challenge is not just about code. It’s a holistic evaluation of your ability to solve problems, communicate, and learn.

Official Challenges and Examples

Shopify provides official examples through its GitHub internship challenge repo. A well-known task is the Playfair cipher, where candidates implement a text encryption algorithm under specific rules.

Community posts and shared solutions reveal additional patterns:

  • Classic algorithm tasks: Two-sum, anagram checker, string reversal, and matrix problems.
  • SQL assessments: Writing queries with GROUP BY, JOIN, and window functions for analytics roles.
  • Front-end challenges: DOM event handling, small UI bug fixes, or building a tiny widget.

Example: Algorithm Problem

Problem: Write a function that checks if two strings are anagrams.

def is_anagram(s, t):

    return sorted(s) == sorted(t)

Follow-up: Optimize it with a hash map for better performance on long strings.

Formats by Role

Shopify customizes challenges by role. Here’s what you can expect:

RoleTypical TaskTimeExample
Intern (Eng)Small algorithm / Playfair cipher2–3 hrs take-home / 45–60 min liveImplement cipher or string parser
Backend SWEArray/string problem on CoderPad45–60 minTwo-sum, palindrome, balanced brackets
Data / AnalyticsSQL joins, aggregates, window functions30–60 minQuery with GROUP BY & ranking
FrontendDOM manipulation, UI logic45–60 minFix broken JS function, implement dropdown

What Interviewers Look For (Grading Rubric)

Passing the Shopify coding challenge isn’t just about producing a working solution. Interviewers look for five key qualities:

  1. Clarity – Is your code readable, structured, and commented?
    Tip: Use descriptive variable names and modularize your logic.
  2. Correctness – Does it pass both normal and edge cases?
    Tip: Always test empty inputs, large inputs, and corner cases.
  3. Efficiency – Do you understand time and space complexity?
    Tip: Mention “This runs in O(n) time and O(n) space” as you explain.
  4. Communication – Are you explaining your thought process?
    Tip: Narrate like: “I’ll start with a brute force… then optimize with a hash map.”
  5. Testing – Do you verify your own solution?
    Tip: Write 2–3 sample tests during the session to prove robustness.

👉 Create a self-check rubric after every practice session: Did I explain? Did I test? Did I optimize?

Two-Week and Four-Week Practice Plans

Two-Week Sprint Plan (for last-minute prep)

  • Daily (60–90 mins): Solve 2 easy + 1 medium LeetCode (arrays, strings, hash maps).
  • 3x weekly: SQL practice (joins, aggregates).
  • Weekly: Mock CoderPad session with timer, explain out loud.
  • Weekend: Record yourself narrating 2 Life Story answers.

Four-Week Deep Plan (ideal prep)

  • Week 1–2: Data structures & algorithms (arrays, linked lists, hash maps, recursion).
  • Week 3: SQL & role-specific prep (DOM for front-end, small systems for interns).
  • Week 4: Mixed mock interviews + refining Life Story answers.

📌 Use platforms like LeetCode, HackerRank, and InterviewQuery for realistic practice.

The Life Story Interview

The Life Story interview is unique to Shopify. Instead of firing rapid behavioral questions, they ask you to tell your story — how you got here, challenges you’ve faced, and what shaped your career.

How to Structure Your Stories (SARR Framework)

  • Situation: Set the context briefly.
  • Action: Explain what you did.
  • Result: Share measurable outcomes (faster app, solved bug, improved process).
  • Reflection: Show what you learned.

Example story (condensed):
Situation: “In my data structures course, our project crashed with large inputs.”
Action: “I redesigned the algorithm with a hash map.”
Result: “Runtime dropped from 10 seconds to under 1.”
Reflection: “This taught me to analyze time complexity before optimizing code.”

👉 Prepare 4–5 stories across academics, internships, leadership, and personal growth.

FAQs About the Shopify Coding Challenge

How long is the Shopify coding challenge?


Most live challenges last 30–60 minutes. Take-homes range 2–3 hours with flexible deadlines.

Can you Google during CoderPad?


Some reports say limited browsing is allowed. Still, assume no and practice solving problems without relying on external help.

What problems appear for interns?


Interns typically face small algorithm problems like Playfair cipher, string parsing, or array manipulation.

Do data roles include SQL?


Yes — expect joins, aggregates, and ranking queries. Occasionally, advanced window functions appear.

How should I prepare for the Life Story interview?


Prepare 4–5 personal stories using the SARR framework. Keep each under 3 minutes.

What is a good daily practice routine?


Spend 60–90 minutes daily: 2 LeetCode problems, 20 minutes of SQL, and 10 minutes narrating aloud.

What should I do on interview day?


Warm up with 1 easy coding problem, set up your IDE, test your microphone, and review 1 Life Story story for confidence.

Final point:

The Shopify coding challenge tests more than coding. It checks your clarity, adaptability, and storytelling. With algorithm drills, SQL prep, and Life Story practice, you’ll stand out from the competition and confidently tackle Shopify’s unique process.

Resources for Practice

  • Shopify GitHub Internship Challenge
  • LeetCode (arrays, strings, hash maps, dynamic programming).
  • HackerRank SQL practice sets.
  • Pramp or Interviewing.io for free mock interviews.
  • Glassdoor & InterviewQuery for role-specific reports.

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