Non CS degree guy who made it to Amazon or Google

I have read an article somewhere (cant remember from freecodecamp or medium) that says someone with no CS degree who have many years of software working experience in different firms (small or unknown firms(, started 2 of his own ventures but closed down, and after so many years decided to try his luck to join Google. In the article he detailed out his job application and interview preparation journey. He also mentioned his experience trying with different big tech firms, even though he didnt get into Goole in the end, but he got into Amazon.

He actually shared his materials he used like data structure and algorithm materials, and tonnes of other resources he used to prepare for interview . He even put into his own github and shared with pubic. Does anyone know the link of the article?