There are currently 88 new Drupal contributors awaiting review of their first project. This is a great place to contribute to the community and learn about interesting upcoming projects, for example...
Aten is always looking for good opportunities to contribute useful code around the open source software we use. Here are some opportunities we've found recently.
Recently we had the task of loading data from a content type with 350 fields. The overhead of the Views module caused PHP timeouts when exporting all the nodes. Loading an entire node means JOINing the node table by entity_id with each related field table, and at 350 fields the query runs slow.
During a recent Drupal 8 project we needed to collect structured address information outside the context of an entity. Specifically, adding a section for address and phone number to the Basic Site Settings configuration page. As it turns out, the same functionality you get on entities is now also available to the Form API.