ITI Course/Trade in Fitter: Offering 1 Year course with Live training, Job Oriented Course and earn while learn. Admission Open. Apply Now A fitter is in charge of assembling machines of smaller or larger degree of complexity. They must use the schemes, which are obligatory to comply with in order for the product to be exact, which will enhance the stability of the assembly, its functionality and correctness. To complete the given task, a fitter is bound to know the process of making the components, each of their purposes as well as the purpose of the final product. Fitter's job description also includes maintenance of the assemblies, making them serve their purpose at any time. The fitter should follow the occupational health and safety measures. He can also work in the field.