Thomas Weller

Chapter Lead & Data Science Manager

Jul 2019 - Sep 2025 • 6 yrs 2 mos

Leading a team of data scientists in the pivotal area of Big Data and Advanced Analytics, my role involves leveraging machine learning algorithms to augment sales profits and make business decisions more effective across multiple use cases. - Experience in cultivating and guiding a team of data scientists. - Collaboration with product and sales management teams to address business challenges using AI solutions and Big Data technologies. - Assessing and quantifying the impact of data science projects, incorporating methodologies such as A/B testing. - Advising teams and executives on the potential of data-driven solutions to bolster strategic initiatives. - Steering data science projects aimed at predicting customer behaviors, including churn rates and product purchases. - Leveraged Large Language Models (GPT-3 and Llama2) to analyze customer feedback, identifying key feedback clusters and the most relevant topics.

Data Scientist

Jul 2015 - Jun 2019 • 3 yrs 11 mos

In this role, I utilized machine learning algorithms to enhance sales profits and optimize business decisions across various use cases. My key responsibilities and achievements included: - Developed machine learning models using Python (H20, XGBoost, scikit-learn) and SAS to predict customer behaviors such as sales and churn events. - Data preparation, cleaning, and pre-processing tasks using Python and Spark to ensure data - quality and readiness for analysis. - Generated and visualized business insights utilizing tools like matplotlib, seaborn, and Qlik to aid decision-making and strategy formulation.