I would say depending how intricate your project is you can hire a freelancer. Most freelancer who develop have portfllios of past work which could be referred back to or a job completion rate score (for freelancers)

Depending on how involved your project is your may not even need to approach a larger company and can have projects completed on a tight budget. Freelance developers trying to make there marks will take on projects within a tight budget. But for tighter timeframes I would look into your more experienced developers or companies.