I'm computer engineering TA with 10+ years of experience.
I'm experienced with Java SE,ME under netbeans,sclipse,JCreator
I'm experienced with data structures and algorithms , computation theory , discrete math and competitive programming
8 USD Budget is ok if it is simple straightforward one but change project type as hourly paid as the fixed amount minimum is 10 USD
I will solve all your problems perfectly in short amount of time and could help you understanding them