I did a lot of open source work in blockchain (ethereum) ecosystem. I wrote a couple popular tools (typechain), as well as I, contributed to other projects. Th

I did a lot of open source work in blockchain (ethereum) ecosystem. I wrote a couple popular tools (typechain), as well as I, contributed to other projects. This was one of the key factors that helped me land my dream job so definitely, open-source work will help you get hired but this might depend on the industry. Blockchain is open source by default.