Whereas "freelancing" only applies to writing, performing, and programming (by definition), is there some equivalent job title for an electronics designer/engineer who is self employed? Such a person may design and test circuitry for tech startups, and possibly act as a sort of outsourced quality-control for electronics manufacturers.
To perhaps clarify the question, I have extensive knowledge and unprofessional experience in electronics design, electronic test equipment, and all the necessary mathematics. The only problem is that I never went to college, and have no degree to to speak of. Because It is hard to find a decent job in the engineering field without a diploma, I am trying to go into business for myself; you could say I am in the "brainstorming" phase of making a company. I simply want to know what to call myself when I advertise.
All suggestions appreciated. Thanks