I hire Junior wordpress developers and designers for my firm often. I still want them to feel important and a more prominent title gets you more WordPress experience faster on your way to being a senior developer in the future.
Based on what I have titled my own junior programmers, I suggest:
- Junior Web Developer
- WordPress Web Developer
They both work well and tell clients and employers exactly what you do.
First, I'd love to help you as you grow and expand your freelance career. It is truly my passion to help others do what they love.
As for your question, I like "WordPress Virtual Assistant". As a former agency owner, this speaks to exactly what you do. If you have a web presence (I expect you do), then you can go in to more detail about your freelance capacity, your skills, and how you can help agencies and firms outsource some of those administrative tasks that bog us down and cost the client hundreds an hour for a developer to handle.
Keep in touch,