Crowdsourcing a Job Title

So, I'm in the verge of accepting an offer to become the first EE hire at a startup. The position is currently Senior EE - Embedded Systems with the role being to design and produce products based on the founder's invention. I'll be responsible for ground up design (high level system design, component selection, schematic and PCB, firmware, and where applicable mobile app demos). I'd also be responsible for writing with customers to raise their ideas of things they could do with the core tech.

So, I'm really excited about the work but the title is a bit bland. I'd have some flexibility to set my title, so looking for some ideas. Likely things with "Director" or "VP" won't fly and honestly I'm not necessarily looking at that at this stage. Maybe if I'm still around in a few years and we've built more of a team around me. Instead right now, I'm thinking of something like "Imagineer" except that's a blatant Disney title and I'd like to not be too derivative.

TC to be 175k base, 0.5% equity over 4 years, 11 YOE.