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Technical PM Interview Questions

Technical questions assess your ability to work with engineering teams and understand technical constraints. While you don't need to code, you should understand system design, APIs, and technical trade-offs.

Questions
140
Easy
20
Medium
84
Hard
36

140 questions match

1408
Explain how Apple Pay's contactless payments work to a five-year-old. What keeps the payment secure?
Medium
TechnicalApple
1449
Asked May 2026Design an algorithm that recommends potential candidates to recruiters.
Easy
TechnicalLinkedIn
1450
In pseudocode, write an algorithm that finds the longest palindrome within a string. For instance, inside "ababcdcbeb" it would be "bcdcb".1 answer
Easy
TechnicalLinkedIn
1465
Asked May 2026A customer pays online with PayPal. Describe everything that happens next.
Hard
TechnicalPayPal
1466
Explain how PayPal makes money as if I was 5 years old.
Medium
TechnicalPayPal
1467
Asked May 2026Explain the Monte Carlo method, including when you might use it, to my grandmother.
Easy
TechnicalPayPal
1468
Asked May 2026How does MVC work? What are some pitfalls of this method?
Easy
TechnicalPayPal
1469
What three key metrics would you choose for TikTok's executive dashboard?
Easy
TechnicalPayPal
1493
Define 1-2 key metrics you'd use to measure each step of the customer purchase funnel on Walmart.com.
Medium
TechnicalTikTok
1504
Asked May 2026You've been given a list of 10,000 grocery item SKUs, each of which has a price. Without sorting the entire list, how could you find the cheapest item in the list?
Easy
TechnicalWalmart
1505
Asked May 2026How would you build the tech stack supporting a self-checkout machine in Walmart stores?
Easy
TechnicalWalmart
1506
How would you explain A/B testing to a five-year-old?
Hard
TechnicalWalmart
1507
Design an automated system that can deliver roadside assistance to stranded Tesla drivers (e.g. people whose cars break down in the middle of nowhere). What are some logistical and operational challenges you'd have to handle?
Easy
TechnicalWalmart
1534
Asked May 2026Sketch out an algorithm that, given the distribution of Tesla owners and Superchargers around the world, recommends where we should build our next Supercharger.
Easy
TechnicalTesla
1535
Pitch a cool new hardware feature for Tesla cars.
Hard
TechnicalTesla
1536
Asked May 2026Suppose Lyft overhauled the driver rating system. How would you measure if it was successful?
Medium
TechnicalTesla
1557
Asked May 2026How would you compute a ride's ETA?
Medium
TechnicalLyft
1558
Asked May 2026Walk me through how the surge-pricing algorithm might work.
Hard
TechnicalLyft
1559
Describe the SQL database schema that an app like Snapchat might use.
Easy
TechnicalLyft
1572
In pseudocode, write a function that computes the n-th Fibonacci number.
Easy
TechnicalLinkedIn
1581
Asked Sep 2026How would you redesign the driver-matching algorithm?
Hard
TechnicalLyft
1600
How does Dropbox’s file-syncing algorithm work?
Hard
TechnicalDropbox
1601
Asked Sep 2026Design an algorithm that searches through a folder to find identical files. What’s the time and space complexity?
Medium
TechnicalDropbox
1602
Asked Sep 2026Design an algorithm to detect blurry photos.
Medium
TechnicalDropbox
1603
How would you create a sentence autocompletion algorithm for Google Docs, Microsoft Word, etc.?
Hard
TechnicalDropbox
1604
Asked Sep 2026Design an algorithm that can automatically turn PDFs of data tables into CSVs.
Hard
TechnicalDropbox
1605
Asked Sep 2026Design an algorithm that can guess if two signatures are the same.
Hard
TechnicalDropbox
1606
Asked Sep 2026What do you think Dropbox’s backend looks like?
Hard
TechnicalDropbox
1607
How might Dropbox use database sharding? What might some complications be?
Hard
TechnicalDropbox
1608
Asked Sep 2026How would you describe Dropbox to a 5-year-old? A teenager? A technical wiz with a PhD in computer science?
Medium
TechnicalDropbox
1649
How would you make a model to tell if a given account was a bot?
Hard
TechnicalX
1650
Asked Sep 2026Some accounts try to grow their follower count by finding accounts that auto-followback, follow them, and instantly unfollow them. How would you make a model that identifies these “growthhacking” accounts?
Medium
TechnicalX
1651
Asked Sep 2026Your boss wants to create a dashboard showing her the memes or tweet formats (e.g. “how it started / how it’s going”) that are most popular on X right now. How would you build an algorithm to compute the list of most popular memes or formats?
Hard
TechnicalX
1652
How would you build a system to allow for the verification (i.e. "this clip was created at time X in place Y and is not doctored") of video clips on X?
Hard
TechnicalX
1653
Suppose we wanted to create a dashboard that shows the most frequently used emojis on X. How would you construct the backend and data processing pipeline for such a product?
Medium
TechnicalX
1654
Asked Sep 2026What do you think Tinder’s backend looks like? Sketch it on this whiteboard.
Hard
TechnicalX
1655
How would you archive the last ten billion tweets?
Hard
TechnicalX
1656
Asked Sep 2026How would you explain the difference between a retweet, a quote tweet, and a “like” to a new X user?
Easy
TechnicalX
1672
Asked Sep 2026Talk me through a past technical challenge you had to work through with an engineering team. If any complicated technical systems were involved, please draw them on the whiteboard.
Hard
TechnicalShopify
1673
Asked Sep 2026A Shopify customer buys a product and pays with their credit card. Explain everything that gets kicked into motion now: what data, money, and physical objects start moving around?
Medium
TechnicalShopify

About Technical PM Interview Questions

Practice technical interview questions for PM interviews. Prepare for system design, API discussions, and technical trade-off questions. Every question has an expert answer; Premium unlocks the premium questions and their answers.