Field engineering refers to a type of technical support or troubleshooting that is provided on-site, at the location where a product or system is being used. This involves sending an engineer to the customer's premises to diagnose and resolve any issues they may be experiencing with their equipment or software. The goal of field engineering is to provide immediate assistance to customers in order to minimize downtime and ensure that their systems are operating efficiently. It can also involve providing training, installation support, and maintenance services on-site. Overall, field engineering aims to deliver personalized, hands-on technical support directly to the customer's location.