The term can be interchangeable as IT Contractors and Consultants are largely experts in their field of IT. But the main difference may be contractors actually perform work to complete a specific IT task, whereas consultants create solutions to guide how a company can better conduct its workflow.
Information technology contractors can plan, design and implement information technology systems for their clients. IT contractors need strong interpersonal and communication skills to deal effectively with clients.
IT consultants may provide a range of services, including advisory, cost & risk analysis through to governance and general IT strategy.