600 Navarro St #600,
San Antonio, TX 78205
As a support technical lead, the majority of support offerings are still in Drupal 7. With that said, your development practices do not have to lag behind those who get Drupal 8 OOP projects.
I will give some neat tips about using XAutoload and composer for Drupal 7 to make developing Drupal 7 use the same muscles and continue to be fun.