Backend development, especially in C++ or Python. I would like to be work collaboratively with other developers but also have some autonomy and ownership over solutions I'm responsible for, especially as I become more familiar with the problem space. I'm interested in working for companies which are established enough for learning from others (and sharing your own learning) to be a part of the culture.
Extensive customer support work, extensive testing of code I wasn't involved in writing, people-leading (outside of mentoring or leading projects).