The Convergence Medical Staffing Mobile App enables our travelers to search for jobs as well as upload and manage needed information quickly and simply, thus allowing for speedy submittal to facilities. Job Ortho, City: Mason City, State: Iowa, Estimated Start , Shift:3 x 12 Hour Night Shift, 19:00:00-07:00:00, 12.00-3, Length of Contract (Days) : 90, Estimated Gross Pay: 0.00.