Under the general direction of the Manager, is responsible for translating ISO policy changes into market settlement design and implementing the market settlement design changes. Participates in policy discussions and provides recommendations based on impacts to settlements systems or processes. Participates in the configuration, testing and implementation of modifications to settlement system to reflect corporate and stakeholder initiatives. Researches, analyzes, recommends, implements settlement system defect fixes, and may implement dispute/defect corrections. Suggests and implements standards, processes and controls for new and existing business practices. Acts as a subject matter expert in identifying root causes of systemic data issues and recommends solutions. Performs duties on design implementation and testing for both business process and system changes.