Silvia Aguirre is the Vice President of Certificate Management at Avalara. She is the co-founder of Avalara CertCapture. Silvia was previously co-founder and Principal of Tax Technology Services, LLC, where she had overall responsibility for the organization’s operational efficiency and the tax knowledge base. Previously, Silvia served as an Auditor for Texas in their San Antonio and New York offices. After her audit career, Silvia served as a tax manager for national companies in the manufacturing, retail, and technology industries.

Steven Cabrera is a CPA and former California State Tax Auditor and has over 20 years of sales and use tax experience both in state government and “Big 4” and national public accounting sectors. His expertise is in Voluntary Disclosures, Tax Recovery, Registration, Audit Representation, Taxability Research, Refund Reviews, Due Diligence, and more.

Clifford is a former California State Tax Auditor and an industry veteran with 25 years of sales and use tax experience. He has built and managed sales and use tax compliance operations for two of the “Big 4” accounting firms.

Robert is a VP and partner with TTR Consulting, which provides various tax consulting services for TTR customers. Robert leads the firm’s audit defense efforts and leads a team of professionals that specialize in all aspects of state tax compliance, including nexus reviews, voluntary disclosure agreements, managed audits, and direct pay permits. Robert spends much of his time assisting the tax leadership of various Fortune 500 companies in managing their state tax portfolios.

With almost 25 years of experience, Robert brings a wealth of knowledge to his clients. He began his state and local tax career as an auditor with the New Mexico Department of Revenue, specializing in income and gross receipts tax audits of fortune 500 companies and small businesses. After leaving the Department, he joined Sun Healthcare Group, a multi-billion-dollar healthcare company operating in 48 states.  

As a tax director, Robert led the tax compliance and tax planning activities of the company. Robert’s responsibilities included managing the company’s audits, planning, and compliance for sales and use, property, and business license taxes. Robert was a vital member of the company’s integration team and assisted with multiple acquisitions and divestitures.