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Melissa Maddie

Managing Director

Tax Technology


As a Managing Director of Tax Technology Operations, Melissa leads a team of professionals responsible for implementing transaction tax software solutions and provides project management and consulting services to clients implementing tax technology solutions. She works with DMA’s clients and prospective clients to define and gather business requirements, provide process analysis, and design and implement software solutions focusing on industry best practices and client satisfaction.



10 years in tax technology; 6 years with DMA


  • 22 years experience implementing third-party software for SAP, JDE, Oracle, NetSuite, POS, and E-commerce platforms, with a specific focus on customer projects deploying tax solutions across multiple platforms
  • Areas of expertise include tax calculation, exempt customer processing, and compliance reporting
  • Experience as an SAP application consultant, specifically working with third-party integrations
  • Former tax technology professional with a global tax consulting firm where she specialized in complex solution designs and served as a functional subject matter expert for tool development

Commercial Real Estate | Data Centers | Distribution | Energy & Utilities | Entertainment | Healthcare | Hospitality | Insurance | Manufacturing | Retail Banking & Financial Services | Service & Foodservice | Technology | Wholesale



SAP | Oracle | J.D. Edwards | POS | E-commerce | Avalara | Vertex®



  • Bachelor of Science, Business Administration – Texas Christian University
  • Graduate level work in International Business – DePaul University
  • Certified Project Manager
  • Avalara Certified Implementor across all Avalara products