Hi, I have experience in supply chain, HR, finance and other functions. I was responsible for writing the requirements, shortlisting solutions for my startup's backend operations. I led the information systems division for 14 months here. I can share more details about my experience and how I can be a good fit for this project.
The requirements are not very clear, to be honest. If you only need the effort estimate, do you have the requirements listed already? Further, will you be building an application from scratch or use an available tools?