Strong code writing ability is one of the most in-demand skills of our time. Whether this code will power a new software solution or integrate another device into the internet of things, employers want coders who are as fluent in their computer language as they are with their native tongue.
As with any skill, practice makes perfect, and coding challenges are the perfect way for experienced and budding coders alike to improve their coding competence. If you’re trying to learn a new language or just want to strengthen one that you already know, working on the practical problems and contests offered by coding challenge sites will help you to realize your potential.
If you want to learn how to cook up some tasty code or refine your programming palate, the Code Chef can help. This challenge site offers a huge range of problems and contests for coders to sink their teeth into.
Practice problems are divided by skill level (beginner, easy, medium, hard, challenge) and this site gives you access to the source code used by users who have successfully completed these problems. This site also features sponsored contests and hosts monthly “Cook off” coding contests and “Lunchtime” contests for junior programmers.
According to the TopCoder website, they are the “world’s largest community of designers, developers and data scientists,” and members get the chance to earn some real money for real companies. This challenge website is based on a crowdsourcing model: industry leaders, entrepreneurs and universities alike submitting challenges to this voluntary talent pool.
This site has paid out over 80 million to users since its creation in 2001, and if you want to test your skills on the same challenges being faced by experts around the world, TopCoder can connect you with these contests and challenges.
This challenge site offers a selection of challenges and tutorials for a variety of coding competencies. From front end to back end web development, from datastructures and algorithms to Python to Ruby to Java, this site offers just as much in teaching as it does in challenges.
It also offers tutorials to prepare intrepid coders for boot camp as well as tutorials for practical job interview questions.
Codeeval is a coding challenge site that integrates with social media and gives members access to challenges posted by real employers.
CodeEval also gives members a detailed profile for their performance and progress. These profiles are private, but they can be viewed by users and companies who post on Codeeval. These profiles are great for seeing how your skills rate against other programmers and employers who use the site can see this as well.
Codewars is a coding challenge site that is designed to test and improve your skills using various computer languages. You use your language of choice to solve KATA, or the challenges created by users and administrators of this service.
Whether you want to test your skills on a language you’re learning or one you’ve known for a while, CodeWars will present you with the challenges you’re looking for.
This coding challenge site is more specific than other’s you’ve seen, and focuses on teaching you the skills needed in the emerging field of Bioinformatics. This field is all about storing and using the data in the human genome, and if you are thinking of getting into this field, then Rosalind is the perfect way to start.
HackerEarth is a code challenge platform that offers users the option to practice skills they want to improve, create challenges for other coders and compete with other users of the platform.
Career minded code challengers will love this site because over 4,800 companies identify talent they hire through this platform. If you want to hone your skills in a place where employers can see your progress, then this code challenge site is for you.
If you need to brush up on your math skills or enjoy using them, then this challenge site is for you.
Here’s their deal:
“Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems.”
If you love solving puzzles or equations in your free time, or need to flex your math muscles before an interview, these challenges will require both programming and
Reddit is known for entertaining content and their active community and this holds true on this coding challenge message board.
Every week, subscribers can expect new challenges and contests for their coding pleasure. The social aspect of this code challenge board is great for anyone who wants to talk through their solutions, or just meet some people who also love to have their coding skills challenged.
This coding challenge lets you sharpen your coding skills while playing games at the same time. Finally, you won’t have to switch tabs to get a game-enriched code challenge experience.
This coding challenge is also great for employers. They offer screening, training and event services to enhance the skills of your employees and test the skills of your applicants. You can also host your own hackathon, which is a great way to energize your staff and attract the attention of talent.
All of these code challenges can help veteran programmers and beginners alike. Whether you want to learn a new language, experiment with one or strengthen a language you already know, these challenges will engage your coding mind and help to improve your skills.
Ronny Cheng is one of the Co-Founder’s of Digital Astronauts and has helped drive lead generation in the software industry for organizations of all sizes — from start-ups to Fortune 500’s. He helped build one of the first online software review websites, specializing in CRM, ERP, and HR software. He’s a nationally published author with extensive experience working with the HR/Recruiting industries largest brands. In his spare time, you can catch him on Instagram doing his best food blogger impersonation.
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