Thaddaeus Clay is a Lead Software Engineer with 15 years of experience designing and shipping data-driven web and analytics systems across advertising, testing, and enterprise domains. With an MS in IT, he blends hands-on coding (Node.js, ASP.NET), database expertise (PostgreSQL, MongoDB, SQL Server) and operational skills—ETL, partitioning, CI—to improve performance and reliability. He has led small teams to streamline client management tools, built an automated bid management system that doubled optimization opportunities, and engineered data pipelines and reporting tools that eliminated manual work. At Cablevision he delivered enterprise applications that dramatically boosted productivity and cut operational costs, and at Didit he established CI and TDD practices while mentoring junior engineers. Now at Epsilon he continues to drive engineering-led solutions that connect analytics to business outcomes. Colleagues rely on his pragmatic problem-solving and ability to translate complex data flows into maintainable, high-performance systems.
15 years of coding experience
17 years of employment as a software developer
Master of Science (MS), Master of Science (MS) at Hofstra University
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Thaddaeus Clay - Lead Software Engineer at Epsilon