Dennis Sullivan
About Dennis Sullivan
Dennis Sullivan is a Senior SQL Server Developer at TD Ameritrade and the Vice President/CEO of Sullivan IT Solutions, Inc. He has extensive experience in data integration, application development, and ecommerce solutions.
Current Position at TD Ameritrade
Dennis Sullivan is currently working at TD Ameritrade as a Senior SQL Server Developer. Based in Chicago, Illinois, United States, he started this role in 2021. In his capacity at TD Ameritrade, Dennis focuses on advanced SQL Server development, which includes handling complex database systems, optimizing performance, and ensuring the reliability of critical financial data.
Previous Role at ALDI USA
Prior to his current role, Dennis Sullivan worked at ALDI USA as a Consultant from 2017 to 2019. During his two years at ALDI, located in Aurora, IL, he contributed to various projects that required his expertise in SQL Server development and data management. His work supported the company's operational efficiency and data structuring needs.
Leadership at Sullivan IT Solutions, Inc.
In addition to his role at TD Ameritrade, Dennis serves as the Vice President and CEO of Sullivan IT Solutions, Inc. He has been leading the company since 2001. Under his leadership, Sullivan IT Solutions focuses on providing comprehensive IT solutions, ranging from web and windows application development to social media platforms.
Educational Background
Dennis Sullivan earned a Bachelor of Science degree in Computer Science from Northern Illinois University. His education laid the foundation for his expansive career in technology and software development.
Expertise in Application Development
Dennis has significant expertise in developing and designing both web and windows applications using varied programming languages such as C#, VB, and PHP. He has been instrumental in developing CMS applications on platforms like DotNetNuke and WordPress, and has created ecommerce applications using AspDotNetStorefront, NopCommerce, and DotNetNuke.
Experience in Data Integration and Reporting
Throughout his career, Dennis has assisted in data integration work, notably during a merger between two major financial firms. His role in this merger focused on regulatory reporting and creating management dashboards. He is adept at handling disparate data structures to meet the complex reporting requirements of the financial sector.
Development of Social Media Applications
Dennis has a strong background in developing social media applications, particularly targeting platforms like Facebook. His work in this domain includes creating engaging, functional applications that support social interaction and user engagement.