The answer is almost certainly yes. You can customize the design (HTML & CSS) and the job categories. You can control which jobs are and are not allowed. You can set the price. You can even create coupon codes to offer different prices to different people.
But all these customizations are completely optional. We designed JobCoin to be simple–completely hands-off. After the two minutes of setup, you can just let your job board run itself and not worry about a thing.