Hannes DuPreez and CodingGame 15 Apr 2019 Viewed 47 Times Viewed by 27 people

Assessing programmers' coding skills has become an essential step in any technical recruiting process.


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A variety of abilities make for a talented programmer but technical skills are the ones that you can evaluate most accurately. Coding Tests are one of the most efficient ways to screen developers before hiring.

They provide a proven model for identifying and hiring proficient developers. Candidates code their way through real, practical problems that they could encounter in a company (such as finding a bug in a defective piece of code or properly synchronizing a multi-threaded application), enabling recruiters to measure their coding skills objectively and efficiently.

Tech recruiters to HR managers can set up programming tests using various platforms. Coding challenges save recruiters a great deal of time while securing their hires on the technical side.

Online technical programming tests usefully replace paper or whiteboard tests, giving developers a chance to demonstrate their skills. There are several sites that can help test developers' skills.

Popular Developer Testing Sites

There are numerous developer testing sites, here are four of the most popular ones. They are:

  • TestDome
  • Codility
  • Devskiller
  • Hackerank

TestDome

TestDome specializes in Automated Skill testing. The nice thing about TestDome is that it provides practice job interview questions, before attempting the real test. The questions provide sections where you can write your code. You can copy the code to your Visual Studio IDE. You can show all the code, and most importantly, run your code. After you have run your code, it will inform you about the errors.

Codility

Codility Also has a Run mode and debug features, as do all the others. Mostly, it is just the layouts and the questions that change. It provides a new screen for you to review the questions and code and test. Some tests are too complex. Yes, the reading material supplied with some of the questions does help, but some questions are complex and difficult. Another nice feature is that afterwards you can see the data that they used for testing purposes.

Devskiller

Devskiller is a paid-for service. If you are a software house, you could make use of Devskiller to generate decent tests for your candidates. It provides a nice, detailed look at what the candidate did on each question, and even on some questions there is a screen recording feature.

HackerRank

HackerRank is nicely organized according to type of challenge, such as Arrays, or Stacks and Queues, for example. What's also nice is that it shows the percentage of companies utilizing the particular test. One negative point is that the number of available languages is a bit limiting. What is also nice is the Interview Preparation Kit, which contains a number of tests with which you can practice.

Conclusion

Using sites like these will improve your skills, without a doubt, but keep in mind that there are many ways to skin a cat; don't allow yourself to be boxed-in and forced to do things one way, when another way could also work.



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