provide hourly rate and/or fixed price for work/job
DO NOT CHARGE 20% like upwork.com
be searchable like Google.com I.e. Date Ranges; Key words + and - i.e +"neural networks" -LSTM work with neural networks except LSTM(Long Short Term Memory" neural networks<p>No need for average color, or other image based characteristics ; but using an SQL like language might be useful for a good percentage of developers