The Google Summer of Code (GSoC) program application opens on March 16.

Link to apply: https://summerofcode.withgoogle.com/get-started

GSoC contributor eligibility

1. Must be at least 18 years old at time of registration.

2. Must be a student or an open source beginner.

3. Must be eligible to work in their country of residence during duration of program.

4. Must be a resident of a country not currently embargoed by the United States

5. More info here https://summerofcode.withgoogle.com/terms/contributor