An ABB developer is responsible for creating and implementing control systems using ABB's Industrial Automation platform. Their duties involve designing system architecture, programming control logic, and configuring interfaces for operator interaction. They also troubleshoot system issues, optimize performance, and ensure safety protocols. They work closely with engineers and operators to understand their needs, translating these into functional specifications. Their goal is to create automated systems that improve efficiency, reliability, and safety in industrial environments. They also provide training and technical support for the systems they develop.