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interviewing.io
We have the data. All the resources you need to nail your next interview and land the job you want.
We've hosted 100K mock interviews and helped 10K engineers get jobs at great companies and negotiate way more money. Here's some useful material we've collected over the years, on interview prep, market data, and salary negotiation.

See our up-to-date-list of companies who are actually hiring right now (confirmed by our users that are actively interviewing).

Learning Center

Interview Guides

Technical Interview Resources

By Company

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By Programming Language

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By Technical Topic

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In-depth Solutions to Interview Questions

MEDIUM
Data Structures and Algorithms
Given the root of a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom.
MEDIUM
Data Structures and Algorithms
Write an XML parser and formatter.
HARD
Data Structures and Algorithms
Given a dictionary of words, determine whether it is possible to transform a given word into another with a fixed number of characters.
MEDIUM
Data Structures and Algorithms
Write an efficient program for printing k largest elements in an array. Largest elements are returned in order largest to smallest.
MEDIUM
Data Structures and Algorithms
Given an integer array and an integer k, return the kth smallest element in the array.
MEDIUM
Data Structures and Algorithms
Given an encoded string, return its decoded string.
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Blog

It's OK to postpone your interviews if you're not ready
Blog post
It's OK to postpone your interviews if you're not ready
Read nine chapters of Beyond Cracking the Coding Interview for free
Blog post
Read nine chapters of Beyond Cracking the Coding Interview for free
How to get in the door at top companies: cold outreach to hiring managers. Part 2 of 2.
Blog post
How to get in the door at top companies: cold outreach to hiring managers. Part 2 of 2.
Are recruiters better than a coin flip at judging resumes? Here's the data.
Blog post
Are recruiters better than a coin flip at judging resumes? Here's the data.
The unwritten rules (till now) of negotiating with Meta
Blog post
The unwritten rules (till now) of negotiating with Meta
How to sabotage your salary negotiations efforts before you even start
Blog post
How to sabotage your salary negotiations efforts before you even start
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Videos & Webinars

Expert Series
Senior Engineer Breaks Down Systems Design Interview
Alex Golec, a Software Engineering Manager at Reddit, breaks down a mock Systems Design Interview.
Expert Series
System Architect Breaks Down System Design Interview
A system architect at Miro and senior engineer (previously at Google and Microsoft), breaks down a mock Systems Design interview.
Expert Series
Senior Engineer Breaks Down Dynamic Programming Interview
Alex Golec, a Software Engineering Manager at Patreon, formerly Reddit/Google, breaks down a mock Dynamic Programming Interview.
Salary Negotiation
Negotiation 101: How not to suck at salary negotiation
Salary negotiation series first webinar
Salary Negotiation
Negotiation 201: Everything you didn't learn in 101
Salary negotiation series second webinar
Salary Negotiation
Negotiation 301: A case study
Salary negotiation series webinar, a case study.
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