A BRMS (Business Rules Management System) developer designs, builds, and manages applications that implement business processes and decisions. They use BRMS software to model complex business rules and automate decision-making processes. Their work involves integrating the BRMS with existing systems, ensuring its functionality and adaptability to changing business needs. They work closely with business analysts to understand and translate business logic into system rules. They also test, debug, and maintain these rules to ensure they operate correctly. They can also be tasked with training other team members on the use of the BRMS.