CodeSignal

CodeSignal is a technical interview solution. According to the vendor, companies of all sizes already use CodeSignal’s Pre-Screen and Interview products to tap into underrepresented pools of candidates, increase speed-to-hire, and increase candidate pipeline yield. Studies have shown that companies who use pre-hire screenings see turnover rates reduce by 39%.

CodeSignal uses technology to predict a candidate’s interview performance. CodeSignal’s predictive assessments go beyond testing only for data structures and algorithms, instead they dive deep into subject-specific assessments. Assessments on CodeSignal’s platform support 38+ programming languages, provides an advanced real-world coding environment, coding scores, and utilize a proprietary AI-powered plagiarism check.

Overview of CodeSignal Features

CodeSignal offers tests in 38+ programming languages in a real life coding environment. Per the vendor, their platform is a “flight simulator for developers” that allows candidates to utilize familiar tools to edit, run and debug their code.

CodeSignal offers keystroke playback and an automated plagiarism checker. The ability to play back the candidate’s keystrokes means that their work can be evaluated by multiple members of the hiring team without the hassle of everyone attending the assessment live. Their AI plagiarism checker searches for suspicious results, such as similarities in candidate responses.

CodeSignal’s assessments can assist companies looking to diversify their teams. Companies can replace a resume screen, and the unconscious bias it may bring, with a coding assessment. Using assessment scores allow them companies to evaluate candidates purely on skill rather than any other factor.

Coding Tests

CodeSignal divides different coding tests up into unit test frameworks that assess a person’s technical skills. Examples of unit test frameworks include:

• NUnit for .NET Framework

• xUnit or NUnit for .NET Core

• JUnit for Java

• Mocha/Chai for JavaScript

• PHPUnit for PHP

• unittest for Python

• RSpec for Ruby

• UI tests using Galen

• UI functionality tests using Puppeteer

Assessments can be set to run in a specific language, or can be language agnostic so that the candidate can complete the test in their preferred language.

Testing job-specific skills allow for companies to pre-screen based on candidate skills and helps to improve the interview to hire ratio, since only qualified candidates will be offered interviews.

Coding Interviews

Companies can use CodeSignal for more than just their screening assessments, as the platform also allows for coding interviews and whiteboard sessions. CodeSignal’s coding interview options are suitable for in-person or virtual interviews. Companies can choose interview tasks from a pre-existing library, or can easily import custom tasks from GitHub.

Using CodeSignal’s interview tool, companies can see how candidates interact with the tools they will use every day on the job and make more informed hiring decisions. Team members can interact with the candidate to evaluate their approach to solving problems.