If the FOSS experience is part of your background but not a shining beacon or job equivalent, it's common to list it under "other experience." Andy Lester, author of "Land The Tech Job You Love" says: "Think of each project as a freelance job that you've worked on. Just as different freelance gigs have varying sizes and scope, so too does each project to which you contribute. The key is to not lump all your projects under one 'open source work' heading."
Good examples are worth a thousand words. Grossbart offers up his resume as a sound, but not perfect example that includes open source experience. (Note: The resume is at the bottom of the article on how to format your resume.). What resume techniques have worked for you?"
Link to Original Source