Fernandes was a monthly technology columnist for GlobeAsia Magazine, Indonesia for 5 years producing over 60 columns over this period.

He also became a writer and technology troubleshooter for one of India’s most widely read computer publications, CHIP Magazine (christened Dr.

While studying there, he was among the founding members of RecordTV.com (now known as InstantTV), where he holds a patent for a Network DVR; he also part of the founding team of PerceptiveI, a company that developed patented ECRM software for Fortune 500 clients like Eastman Chemical Asia Pacific, Great Eastern Life .

Over the years, his writings have appeared in The Jakarta Globe, CHIP, DNA India, The Goan and Man's World Magazine, among others.

[11][12] Fernandes helped develop SmartKlock, a "smart" clock that gave its users only important notifications.

[9] This venture slowly grew into FUNL Corp, which offers an app designed to block out unnecessary notifications, with a reward-based system (working on blockchain).

Along with Vadim Fedotov and Gene Hoffman, Fernandes also co-founded Malta-based AET Ventures (AEToken).

Fernandes has advised the country of Barbados, the Government of Goa, and multiple Goan political parties on IT and Education policy.

[17] In November 2017, Fernandes founded blockchain startup FUNL Corp, a platform that “filters notifications using a social blocking approach making real-time intelligent decisions on whether to block or let a notification through to your phone based on data executed from other users”.

[23] In 2021 AdLunam Inc. was co founded by Jason Fernandes, Nadja Bester and Lawrence C Hutson and was incorporated in the British Virgin Islands.