Is that even possible? an automatic trader bot? Do you only have an idea or you already have prototype of your own and just looking for another developer for more improvements?. This thing will be a great investment if it really work.
These exist already. e.g. Gunbot. It's not free money though(like most people probably think of it), it's a bot that execute trades based on the conditions/strategies you input into the trading bot.
@OP, I suggest posting in the Project Development[1] section, as you're probably more likely to find a person interested in the project you're planning on having.
Best of luck.
[1]
https://bitcointalk.org/index.php?board=12.0