Prep Room
Prep wiki
Code Room
What Code Room covers
Coding
Write, debug, and run code against tests — narrated.
System design
Design an architecture, clarify, scale, trade off.
Code review
Read a diff — find the bug, the smell, the risk.
On-call
Diagnose an incident, mitigate, write the postmortem.
Vibe & agentic
Direct an AI to build it, design agents for real work — and catch what they get wrong.
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AI-Ready
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Insights
Pricing
FAQ
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Answer real questions out loud or by text and get a free AI critique.
Your industry
Choose your industry…
Accounting
Advertising Services
Airlines and Aviation
Automation Machinery Manufacturing
Banking
Biotechnology
Business Consulting and Services
Chemical Manufacturing
Civil Engineering
Computer Games
Construction
Consumer Services
Design Services
Education Administration Programs
Energy and Utilities
Financial Services
Food and Beverage Services
Government Administration
Hospitals and Health Care
Hospitality
Human Resources Services
IT Services and IT Consulting
Insurance
Investment Banking
Investment Management
Legal Services
Manufacturing
Marketing Services
Medical Equipment Manufacturing
Non-profit Organizations
Pharmaceutical Manufacturing
Public Relations and Communications Services
Real Estate
Research Services
Retail
Software Development
Technology, Information and Internet
Transportation, Logistics, Supply Chain and Storage
Venture Capital and Private Equity Principals
Other
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