We have a running web application developed with Java frontend and a Mysql backend. The requirements evolved over time and it is has grown in size. We need to take a fresh look at the busness logic and architecture, to make it efficient and scalable. The data is expected to grow so the design will need to look ahead and cater to this. Freelancers with good experience may bid, with information about how they are better than others who maybe bidding. Please also mention the expected time for completion.