A JRules Developer works on IBM's Operational Decision Manager (ODM), previously known as JRules. They are responsible for designing, developing, and implementing business rules using this platform. They gather and analyze business requirements, translate them into technical specifications, and create decision validation services. Their job also involves maintaining rule artifacts, managing rule deployment packages, and ensuring the seamless integration of JRules with other applications. They may also troubleshoot and optimize the rule execution server. A JRules developer often collaborates with business analysts, rule developers, and IT teams to provide solutions that streamline business processes and decision-making.