Job Bytes

Your pocket cheat sheet for the programming interview.

Job Bytes is a fast, focused deck of questions candidates actually get asked at real companies: algorithms, data structures, and now system design. Every question, answer, and line of code is written by a software industry veteran (Par Trivedi, 20 years in the industry at Meta, Uber, Better.com, Groupon and more) with over two decades in the field. No fluff, no filler, just the stuff that shows up in the interview room.

Cramming on the train? Killing time in the lobby before your slot? Open Job Bytes and start brushing up. It's built for exactly those last few minutes before you walk in.

NEW! -- System Design
Our biggest update yet, and now the first thing you'll see. 30+ questions covering the material that trips up even senior engineers:

• 15 real design problems — design TinyURL, Instagram, Twitter, Uber, YouTube, Dropbox, WhatsApp, a web crawler, an API rate limiter, and more. Each breaks down the requirements, the architecture, and the tradeoffs interviewers love to push on.
• Back-of-the-envelope estimates — every design problem shows worked capacity math (throughput, storage, bandwidth), explained step by step so you can reproduce it under pressure.
• 17 must-know fundamentals — load balancing, caching, sharding, the CAP theorem, consistent hashing, bloom filters, SQL vs. NoSQL, and more.

What's inside
• Five sections: System Design, Algorithms, Sorting, Trees, and Data Structures.
• 70+ code samples in clean, readable Python.
• Full-screen code view in portrait or landscape.
• Syntax highlighting that makes the code easy to scan.
• Favorites, so the questions you care about are always one tap away.

Land the offer. Don't walk into your next interview without it.