Matthew Keller
About Matthew Keller
Matthew Keller is a Senior Data Engineer with extensive experience in data analysis and engineering roles across various companies, including Optum and Pareto Intelligence. He holds a Bachelor's degree in Computer Science from Northern Illinois University and has developed systems to enhance data processing efficiency.
Current Role at Pareto Intelligence
Matthew Keller currently serves as a Senior Data Engineer at Pareto Intelligence, a position he has held since 2022. In this role, he focuses on enhancing system scalability through the implementation of intermediary validations and event-based rules. He has developed a modular, event-based PySpark system that has replaced a legacy manual data pipeline, improving efficiency and reliability in data processing.
Previous Experience at Optum
Matthew Keller has extensive experience at Optum, where he worked in various roles from 2019 to 2021. He began as a Data Analyst for one year, followed by a year as a Data Specialist. His responsibilities included data analysis and management, which laid the groundwork for his subsequent role as a Data Engineer for eight months. His time at Optum provided him with a solid foundation in data engineering practices.
Education and Academic Background
Matthew Keller studied at the University of Illinois Urbana-Champaign, where he completed his degree from 2008 to 2012. He later attended Northern Illinois University, achieving a Bachelor's degree in Computer Science from 2014 to 2016. His academic background has equipped him with the technical skills necessary for his career in data engineering and analytics.
Professional Development and Skills
Throughout his career, Matthew Keller has developed a range of technical skills. He designed in-line validation services using Deequ and PySpark, and he has extracted common code chunks into a library to improve efficiency. His experience also includes significant technical writing and presentations, particularly documenting the transition from manual to automated processes, showcasing his ability to communicate complex technical concepts effectively.
Early Career Experience
Before his roles in data engineering, Matthew Keller worked as a Sales Consultant at OfficeMax for 14 years, where he gained valuable customer service and sales experience. He also held positions as an Undergraduate Teaching Assistant at Northern Illinois University in 2016 and as an IT Intern at AbbVie for three months in 2016. These early experiences contributed to his professional development and understanding of technology in various contexts.