The annual Google Summer of Code is coming up, and as usual there will be several students representing the FreeBSD project. They will begin accepting applications starting March 20, 2017 and ending April 3, 2017.
Instructions for applications including a template can be found at https://www.FreeBSD.org/projects/summerofcode.html
Students should have familiarity with UNIX/Linux/FreeBSD, and should have experience with installing and re-building FreeBSD should their project require this. Generally good knowledge of C is also a requirement. For the start of the GSoC students should ideally know how to use some Version Control System like subversion or github.
Most candidates keep some contact with the community, usually through project mailing lists or IRC, and actively keep in touch with developers to suggest possible mentors.
Please check the list of project ideas at https://wiki.FreeBSD.org/SummerOfCodeIdeas
FreeBSD Google Summer of Code: https://summerofcode.withgoogle.com/organizations/6092454341115904/