At most brokers, a $10,000 account, you won’t be able to trade 1 S&P 500 e-mini ES futures. You can only trade micro e-mini MES futures.
This is because one ES contract represent 4000x$50 = $200,000 value. Without any leverage (margin), you need a $200,000 account to trade 1 ES contract.
Most brokers will allow client to use leverage (margin) to trade ES contract for a much smaller account. For example, at interactive brokers, the margin requirement for ES future is $13,935 if you want to keep position overnight.
So, to trade even 1 ES future, you need at least at least an $15,000 account, and this represents $200,000 / $15,000 = 13X leverage.
In my Zen1 system, I chose the $25,000 initial account, and this represent roughly $200,000 / $25,000 = 8X leverage. In this account, initially I cannot increase the leverage because to trade 2 ES futures, I would need the account value to exceed 2x$13,935 = $27,870.
Also the 8 ES point stop is too small, it would be triggered mostly within a few minutes, especially in a volatile market. The stop has to be dynamically adjusted based on your algorithm.