I used to be a technical lead in a group of 3-5 programmers. Tech lead's responsibilities here would include thinking of/designing overall solution architecture, coding, refactoring, being the first to dive into the next big thing, reviewing others' code, sitting on customer meetings and answering endless questions from the rest of the team.
Now I'm moving on to a branch-level position (in a branch of ~60 people), which entails pretty much the same, sans maybe the coding/refactoring part. Still kinda a tech lead, but the title "tech lead" is already being used and means something else - a group-level tech lead.
Please help me come up with a good job title. I need something for my e-mail signature and, eventually, resume.