A DeltaV developer designs, implements, and maintains automated control systems for industrial processes. They specialize in Emerson's DeltaV control system, configuring control strategies, operator interfaces, alarms, and batch procedures. They work closely with engineers to ensure system functionality, perform troubleshooting and system diagnostics, and provide technical support. They also ensure the system adheres to safety and industry standards. Moreover, they may be involved in training end-users, creating technical documentation, and participating in system upgrades or migrations. Their role is critical in industries like pharmaceuticals, petrochemicals, and food processing, where process automation is key.