Hello,
I am an electronics and telecommunication engineer and my major is wireless systems' design. I am experienced in hardware and embedded systems' design. I have designed/printed/tested many PCBs and I have solid background in power electronics. I have designed many SMPSs, buck, buck boost converters for my projects and I have checked your requirements. I am quite sure that I can help you with your project. Just give me all the details and I will do my best to help you.
Best regards