Software Developer, Programmer or Software Engineer who are proficient and quite good conversant writing Lines of Program Codes have had pursued and completed their hacking career. There are two types of hackers and they are:
People who are proficient in writin program codes, manipulate data, find bugs and glitches and develop standalone softare are also hacker. However, I would say that most developers in Frellancer, Indeed, and Elance are females who are expert in programming. They usually from US, Japan, UK, Phillipines and India. My answer is, offcourse, a females can go for this career and opt in.
These people are elite programmer who can hack any network security, computers and encryted servers. If you are asking for suggestion for this career, then here is a Big No! from my end. They are considere to perform illegal actions or activities either for fun, reward or to disgrace someone or hurt company's reputation.
The programming and software development is the choice.