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

713

Asked Feb 2026Explain recursion to your grandmother.

Medium

TechnicalMicrosoft

714

Asked Feb 2026Describe a few sorting algorithms and explain which one is the best.

Medium

TechnicalMicrosoft

715

What are the main differences between Java and JavaScript?

Medium

TechnicalMicrosoft

716

Asked Feb 2026Explain logistic regression to a non-technical person.

Medium

TechnicalMicrosoft

717

How does [a product made by the team you're interviewing for] work? Explain it to me as if I'm an average person, not a techie.

Medium

TechnicalMicrosoft

718

Asked Feb 2026Teach me about the differences between TCP, UDP, IP, and HTTP.

Medium

TechnicalMicrosoft

818

Tell me how you’d build an AWS service that can detect fraudulent credit card transactions.

Medium

TechnicalAmazon

823

Asked Feb 2026Do a system design for a chatbot. Explain how a web session is maintained between an end-user and the web server that's handling the conversation.

Medium

TechnicalAmazon

824

Asked Feb 2026How do RESTful APIs work? Give me an example.

Medium

TechnicalAmazon

827

Asked Feb 2026What's the hardest technical problem you've ever dealt with?

Medium

TechnicalAmazon

883

How do you think Siri parses and acts on user input offline?1 answer

Medium

TechnicalApple

884

Asked Feb 2026How would you improve Apple Music's recommenda tion algorithm?

Medium

TechnicalApple

885

Asked Feb 2026Sketch out how Apple Maps’ routing algorithm (for driving directions, etc.) might work.1 answer

Medium

TechnicalApple

886

Asked Feb 2026Design the search algorithm for the App Store.

Medium

TechnicalApple

887

Asked Feb 2026What pieces of technology are required to make Face ID work?

Medium

TechnicalApple

888

Asked Feb 2026Talk me through the tech stack behind one of the products you’ve worked on recently. What’s the most complicated part of the stack?

Medium

TechnicalApple

889

Asked Feb 2026Describe the backend infrastructure behind Apple Music.

Medium

TechnicalApple

890

Asked Feb 2026What kinds of software components would you need to build a new operating system (such as one for smart watches)?

Medium

TechnicalApple

891

Asked Feb 2026Why do you think Apple products benefit so much from running custom Apple Silicon, like the Mseries chips in MacBooks?

Medium

TechnicalApple

892

Asked Feb 2026Explain some principles of product design that you like to follow.

Medium

TechnicalApple

893

Asked Feb 2026How do you think voice recognition works? Tell me as if you were explaining it to a grandma.

Medium

TechnicalApple

894

Asked Feb 2026Teach me something interesting in 5 minutes using this whiteboard.

Medium

TechnicalApple

1042

Asked Feb 2026How do you think your phone’s GPS system works?

Medium

TechnicalGoogle

1043

Explain TCP and IP to a five-year-old. How about UDP?

Medium

TechnicalGoogle

1044

Asked Feb 2026Pretend I’ve never used a computer in my life. Now teach me how the cloud works.

Medium

TechnicalGoogle

1045

Asked Feb 2026How would you teach a grandparent about hashtables?

Medium

TechnicalGoogle

1046

How does end-toend encryption work?

Medium

TechnicalGoogle

1047

Asked Feb 2026Name a technology that will be obsolete soon. What advice would you give to companies building with those technologies?

Medium

TechnicalGoogle

1048

Explain DNS to a five-year-old. Now explain it to a professional product manager.

Medium

TechnicalGoogle

1049

If Gmail is taking a long time to load, what do you think could be the problem?

Medium

TechnicalGoogle

1050

Asked Feb 2026Tell me how Dropbox works.

Medium

TechnicalGoogle

1051

Sundar Pichai has asked you to brief him on a new technology or industry trend that you think could reshape the tech industry. Pick a technology or trend and explain how it works, why you're bullish on it, and how Google could use it.

Medium

TechnicalGoogle

1052

Asked Feb 2026Describe your favorite product to a non-technical person. How do you think it works under the hood?

Medium

TechnicalGoogle

1214

Asked Mar 2026Given a string, how would you find all letters that appeared twice in a row? For instance, you'd identify "o", "k", and "e" in the string "bookkeeper."

Hard

TechnicalMicrosoft

1215

What are adjacency lists and adjacency matrices? What would you use them for?

Easy

TechnicalMicrosoft

1216

Tell me how you think Edge implements caching of webpages.

Medium

TechnicalMicrosoft

1217

Asked Mar 2026Imagine I'm a Fortune 500 CTO, and tell me the benefits of hybrid cloud computing and why I should start using Azure's hybrid cloud services.

Hard

TechnicalMicrosoft

1259

Asked Mar 2026Design a collaborative filtering algorithm to generate "customers who bought this item also bought" recommendations for shoppers on Walmart.com. Walmart Technical Algorith… February

Medium

TechnicalWalmart

1260

Asked Mar 2026Suppose we know a customer's latitude and longitude, and the lat/long pairs of all

Medium

TechnicalWalmart

1261

Asked Mar 2026How would you design a demand forecasting model that could predict how many items from a particular SKU would be sold given their price? How would you use this to maximize profit?

Hard

TechnicalWalmart

1262

Asked Mar 2026Propose an algorithm that would detect bot checkouts on Walmart.com. What signals would you feed into the ML algorithm?

Medium

TechnicalWalmart

1263

Write an algorithm to decide which product we should offer as the Rollback of the Day on Walmart.com.

Medium

TechnicalWalmart

1264

Asked Mar 2026How would you implement one-click checkout on an e-commerce site? What technologies would be required?

Medium

TechnicalWalmart

1265

Asked Mar 2026Describe predictive analytics to my grandmother.

Medium

TechnicalWalmart

1282

Asked Apr 2026In 5 minutes, teach me about a cool new technology you've been following.

Medium

TechnicalGoogle

1283

Asked Apr 2026Tell me about the differences between Python and Java. When would you choose each language?

Medium

TechnicalGoogle

1284

Explain the pros and cons of a "freemium" business model.

Medium

TechnicalGoogle

1395

There are two six-sided dice on the table: a normal one, and a weighted one that lands on "6" five times as often as it lands on any of the other numbers. You randomly pick a die and roll "6", "1", "6". What's the probability that you're using the weighted die?

Medium

TechnicalApple

1406

Asked Apr 2026Design an algorithm that automatically stabilizes a shaky video.

Easy

TechnicalApple

1407

Asked Apr 2026Walk me through the various components inside a MacBook. How do they work together?

Medium

TechnicalApple


713	Asked Feb 2026Explain recursion to your grandmother.	Medium	Technical	Microsoft
714	Asked Feb 2026Describe a few sorting algorithms and explain which one is the best.	Medium	Technical	Microsoft
715	What are the main differences between Java and JavaScript?	Medium	Technical	Microsoft
716	Asked Feb 2026Explain logistic regression to a non-technical person.	Medium	Technical	Microsoft
717	How does [a product made by the team you're interviewing for] work? Explain it to me as if I'm an average person, not a techie.	Medium	Technical	Microsoft
718	Asked Feb 2026Teach me about the differences between TCP, UDP, IP, and HTTP.	Medium	Technical	Microsoft
818	Tell me how you’d build an AWS service that can detect fraudulent credit card transactions.	Medium	Technical	Amazon
823	Asked Feb 2026Do a system design for a chatbot. Explain how a web session is maintained between an end-user and the web server that's handling the conversation.	Medium	Technical	Amazon
824	Asked Feb 2026How do RESTful APIs work? Give me an example.	Medium	Technical	Amazon
827	Asked Feb 2026What's the hardest technical problem you've ever dealt with?	Medium	Technical	Amazon
883	How do you think Siri parses and acts on user input offline?1	Medium	Technical	Apple
884	Asked Feb 2026How would you improve Apple Music's recommenda tion algorithm?	Medium	Technical	Apple
885	Asked Feb 2026Sketch out how Apple Maps’ routing algorithm (for driving directions, etc.) might work.1	Medium	Technical	Apple
886	Asked Feb 2026Design the search algorithm for the App Store.	Medium	Technical	Apple
887	Asked Feb 2026What pieces of technology are required to make Face ID work?	Medium	Technical	Apple
888	Asked Feb 2026Talk me through the tech stack behind one of the products you’ve worked on recently. What’s the most complicated part of the stack?	Medium	Technical	Apple
889	Asked Feb 2026Describe the backend infrastructure behind Apple Music.	Medium	Technical	Apple
890	Asked Feb 2026What kinds of software components would you need to build a new operating system (such as one for smart watches)?	Medium	Technical	Apple
891	Asked Feb 2026Why do you think Apple products benefit so much from running custom Apple Silicon, like the Mseries chips in MacBooks?	Medium	Technical	Apple
892	Asked Feb 2026Explain some principles of product design that you like to follow.	Medium	Technical	Apple
893	Asked Feb 2026How do you think voice recognition works? Tell me as if you were explaining it to a grandma.	Medium	Technical	Apple
894	Asked Feb 2026Teach me something interesting in 5 minutes using this whiteboard.	Medium	Technical	Apple
1042	Asked Feb 2026How do you think your phone’s GPS system works?	Medium	Technical	Google
1043	Explain TCP and IP to a five-year-old. How about UDP?	Medium	Technical	Google
1044	Asked Feb 2026Pretend I’ve never used a computer in my life. Now teach me how the cloud works.	Medium	Technical	Google
1045	Asked Feb 2026How would you teach a grandparent about hashtables?	Medium	Technical	Google
1046	How does end-toend encryption work?	Medium	Technical	Google
1047	Asked Feb 2026Name a technology that will be obsolete soon. What advice would you give to companies building with those technologies?	Medium	Technical	Google
1048	Explain DNS to a five-year-old. Now explain it to a professional product manager.	Medium	Technical	Google
1049	If Gmail is taking a long time to load, what do you think could be the problem?	Medium	Technical	Google
1050	Asked Feb 2026Tell me how Dropbox works.	Medium	Technical	Google
1051	Sundar Pichai has asked you to brief him on a new technology or industry trend that you think could reshape the tech industry. Pick a technology or trend and explain how it works, why you're bullish on it, and how Google could use it.	Medium	Technical	Google
1052	Asked Feb 2026Describe your favorite product to a non-technical person. How do you think it works under the hood?	Medium	Technical	Google
1214	Asked Mar 2026Given a string, how would you find all letters that appeared twice in a row? For instance, you'd identify "o", "k", and "e" in the string "bookkeeper."	Hard	Technical	Microsoft
1215	What are adjacency lists and adjacency matrices? What would you use them for?	Easy	Technical	Microsoft
1216	Tell me how you think Edge implements caching of webpages.	Medium	Technical	Microsoft
1217	Asked Mar 2026Imagine I'm a Fortune 500 CTO, and tell me the benefits of hybrid cloud computing and why I should start using Azure's hybrid cloud services.	Hard	Technical	Microsoft
1259	Asked Mar 2026Design a collaborative filtering algorithm to generate "customers who bought this item also bought" recommendations for shoppers on Walmart.com. Walmart Technical Algorith… February	Medium	Technical	Walmart
1260	Asked Mar 2026Suppose we know a customer's latitude and longitude, and the lat/long pairs of all	Medium	Technical	Walmart
1261	Asked Mar 2026How would you design a demand forecasting model that could predict how many items from a particular SKU would be sold given their price? How would you use this to maximize profit?	Hard	Technical	Walmart
1262	Asked Mar 2026Propose an algorithm that would detect bot checkouts on Walmart.com. What signals would you feed into the ML algorithm?	Medium	Technical	Walmart
1263	Write an algorithm to decide which product we should offer as the Rollback of the Day on Walmart.com.	Medium	Technical	Walmart
1264	Asked Mar 2026How would you implement one-click checkout on an e-commerce site? What technologies would be required?	Medium	Technical	Walmart
1265	Asked Mar 2026Describe predictive analytics to my grandmother.	Medium	Technical	Walmart
1282	Asked Apr 2026In 5 minutes, teach me about a cool new technology you've been following.	Medium	Technical	Google
1283	Asked Apr 2026Tell me about the differences between Python and Java. When would you choose each language?	Medium	Technical	Google
1284	Explain the pros and cons of a "freemium" business model.	Medium	Technical	Google
1395	There are two six-sided dice on the table: a normal one, and a weighted one that lands on "6" five times as often as it lands on any of the other numbers. You randomly pick a die and roll "6", "1", "6". What's the probability that you're using the weighted die?	Medium	Technical	Apple
1406	Asked Apr 2026Design an algorithm that automatically stabilizes a shaky video.	Easy	Technical	Apple
1407	Asked Apr 2026Walk me through the various components inside a MacBook. How do they work together?	Medium	Technical	Apple

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.