An Impact Measurement & Management (IMM) Specialist integrates impact data into decision-making across investments, programs, and operations. They work in impact funds, development finance institutions, NGOs, and social enterprises. Responsibilities include defining KPIs aligned with frameworks (e.g., IRIS+, SDGs), building measurement systems, analyzing outcome data, and linking results to strategic decisions using MIS platforms, evaluation models, and reporting systems. They serve investors, program managers, and leadership teams. The role moves beyond reporting into performance management. Demand is rising globally due to institutionalization of impact investing, ESG integration, and outcome-driven funding models.