Hi Sir,
I have read carefully and to be honest dashboard like trello and fully database optimization isn't something that can be done in one day.
I am professional back-end engineer from Belgrade and if you are fine with my price I can build it for you. My price isn't fixed so I can make it lower a bit, but not too much.
If you are interested, please contact me and we can discuss more about the job.
Wish all the best,
Nemanja