Clean code is the hallmark of a quality software engineer. It can be the difference between wasting thousands on a project versus doing it right the first time. This screening test validates an engineer’s ability to write easy to maintain code.

As an engineer, the last thing you want to refactor is spaghetti code. It is time-consuming, wastes client funds, and is often one of the worst parts of writing code.

Clean code, which is all about being clear, simple, and efficient, doesn't just make a software product work better - it also speeds up the whole development process. When engineers focus on clean code, they make software that's easier to update and maintain. This saves time and resources down the line, letting businesses respond faster to what customers want, keeping them ahead of the game. 

Plus, clean code means fewer bugs and errors, so products are more reliable, building trust with customers.

Ultimately, clean code means lower development costs, higher productivity, happier customers, and a better edge in the market. So, engineers who care about clean code aren't just tech whizzes - they're key players driving a business's success and growth.

This Clean Code hiring test evaluates the candidate’s conceptual understanding of clean code principles through real-world scenario-based, language-agnostic questions. It measures an engineer’s ability to write clean code with regards to formatting and style, control flow and logic, modularity and code organization, and software design principles.

Use this test to recruit and hire developers skilled at clean code concepts. This screening test evaluates developers at an intermediate level (i.e., about two years’ experience).