Job Description Job Description Welder Job Description : Top Duties and Qualifications A Welder, or Brazer, is responsible for assembling pieces of metal together or repairing damage in metal components using heavy machinery that emits high heat, melting the metal into shape. Their duties include reviewing blueprints, cutting metal into the appropriate shape and smoothing molten metal to remove creases.Welder duties and responsibilitiesWelders' specific responsibilities may vary depending on the industry they work in and how much experience they have, but they typically include: Reading and understanding blueprints prior to starting a projectSourcing the materials to be used in the projectMeasuring and cutting materials to specificationsWelding materials using the correct materials to join the metals togetherChecking finished work to make sure that it falls within the tolerances marked on the blueprintsWelder $18-$22 depending on experience