Codewars

Topcoder is the world’s largest technology network and on-demand digital talent platform with more than 1.6 million developers, designers, data scientists, and testers around the globe. Topcoder empowers organizations including Adobe, BT, Comcast, Google, Harvard, Land O’Lakes, Microsoft, NASA, SpaceNet, T-Mobile, US Department of Energy, Zurich Insurance, and more, to accelerate innovation, solve challenging business problems and tap into hard-to-find technology skills. Topcoder was born in 2000. We’ve listened to our customers through the years and created 3 useful ways for you to engage and execute with our amazing talent. Incredible digital and technology talent, ready to work. Scope, start and execute work much faster. Better talent, better outcomes. It’s not rocket surgery. You’re not alone. Access traditional professional services if you want extra guidance. You don’t have to change. Tap open APIs and integrations to work in approved environments.

CodinGame by CoderPad is an online technical screening platform that enables recruiters, tech leaders and programmers to evaluate and shortlist candidates quickly with confidence. It lets you validate tech skills remotely, get rid of bias, reduce hiring costs and shorten your time to hire. Its ease of use allows anyone, regardless of their tech skills, to quickly create a coding test in just a few clicks. Choose from a question bank of more than 3900 questions and exercises that supports 60+ programming languages, domains & frameworks and over 80 preset job roles of varying skill levels. With a 97% completion rate, its fun real-life questions and exercises ensure a positive candidate experience. Customers include Nasdaq, Huawei and Electronic Arts.