An Engineering Change Management (ECM) job involves overseeing the process of documenting, assessing, and implementing changes to engineering designs, manufacturing processes, or product specifications. Professionals in this role ensure that changes are evaluated for impact, properly approved, and effectively communicated to all stakeholders. They work closely with cross-functional teams, including design, production, quality, and supply chain, to maintain efficiency and product integrity. ECM helps organizations improve products while minimizing risks, costs, and disruptions.