I have worked in software engineering for over 15 years, and I have never contributed to open source as my employment contracts never allowed this. According to

I have worked in software engineering for over 15 years, and I have never contributed to open source as my employment contracts never allowed this. According to my contract, and this is typical for many commercial companies, any code I write is owned by my company, even if I would write it in my own time. If I would contribute to an open source project, there would be legal implications for both me and the open source project maintainer.