If you have basic git skills or are first timers or even veteran developers, GirlScript Summer of Code would give you a taste of contributing in a long open source projects. Register yourself as a participant for GSSoc 2018 here.
Mentors are experts on the Open Source project the team is working on.At the beginning of the program, they provide a roadmap for the project.They are available throughout the summer to review pull requests,help with concepts and generally support the team.So be a mentor in Girlscript Summer Of Code.
Ohh did we mention that the top five performers will get Paid trip to Girlscript India summit. Therefore gear up for the competition and give it everything you got.