Develop a web app for a startup

I haven’t been given a challenge like this before, so bear with me if I use inaccurate terms here. Looking to put together a small, talented team, starting with a web app developer with an outside the box approach to bootstrapping this solopreneur b2b project. Database driven SaaS? Or?? for niche markets. Lots of moving parts. Portfolio of work to be viewed please? Test market goal date: April/22. About 4 month overall project, depending on your expertise and focus on UX, plus patience with translating your spoken tech language into non-technical language for this visionary without necessary tech skills. I will provide basic workflow automation concept via PDF. ND agreement required. Start beginning of December latest.