Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!

HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution

iMocha - Make intelligent talent decisions.

Odoo Point of Sale - Odoo is an online point of sale solution for retail and restaurants.

Codility - Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.