HackerRank is a technology hiring platform that is the standard for assessing developer skills for 2500+ companies around the world. HackerRank helps companies hire skilled developers and innovate faster by enabling tech recruiters and hiring managers to objectively evaluate talent at every stage of the recruiting process.
CodeSignal is the AI-native skills intelligence platform, built on the belief that skills should define opportunity. We help you measure what people can really do and turn skills into action, for companies, universities, and people building their own careers.
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Topcoder is a platform for scalable human + AI talent, enabling enterprises to build, modernize, and validate complex technology faster through a global network of expert problem solvers.