Sylvia Vasilik is a highly skilled and experienced database expert with over 15 years of experience in designing and implementing enterprise-level database applications. She has a deep understanding of the data lifecycle and loves transforming complicated data systems into clean, extensible models and processes. Sylvia is the founder of SQL Practice Problems, where she shares her knowledge of best practices in coding and offers solutions for complex database issues.

Sylvia's professional experience includes working as a Database Engineer/Consultant at Expedia Inc., an Instructor for Certificate in SQL Server Development at UW Professional & Continuing Education, a Data Modeler/Information Architect at the Bill & Melinda Gates Foundation, and a Data Warehouse Architect at T-Mobile. She has also worked as an Information Systems Officer at the United Nations/UNCTAD, a Senior Database Developer/Architect at Expedia, a Database Developer at Microsoft, a Bioinformatics data specialist at Lifespan Biosciences Inc., and a Financial Systems Database Developer at MSFDC.

Throughout her career, Sylvia has developed expertise in all aspects of database development, including data warehousing, business intelligence, data architecture, complex stored procedure development, large OLTP systems, and data conversions/ETL. She is an accomplished communicator and has authored a book, technical blog, and published technical articles online and in trade magazines. Sylvia is passionate about sharing knowledge and setting up systems (wiki, FAQ) to help others.