Sean Costello Email & Phone Number

Baltimore, Maryland, Us

Lead project development, conception, architecture and productionalization of machine learning solutions by collaborating with business stakeholders and IT.• Collaborated with cross-functional stakeholders to gather data from various structured data sources for query development, feature engineering and training set ETL• Apply modeling and machine learning techniques to business problems• Effectively presented technical project details and results to diverse stakeholders • Developed and implemented Marketing platform which facilitates the audience creation and conversion analysis for various marketing campaigns• Concierge model generates asset retention risk scores for participants close to retirement used to prioritize volume to specialized call center team• Created a customer segmentation framework for models to inform marketing strategies • Supervised model development, mentoring Data Scientists and Interns

Baltimore, Maryland, Us

Support Lead Data Scientists with end-to-end model development, EDA, productionalization and documentation. • Analyzed large datasets to extract insights and inform strategic business decisions• Created statistical summary reports of participant populations, providing sales valuable insights on structuring client employee benefit packages• Spearheaded project to detect fraudulent activity in retirement account rollovers, identifying over $1M of fraudulent transactions and improving financial crimes unit detection speed

Baltimore, Maryland, Us

Partnered with data scientists, analytics product owners and other data engineers to discover, collect, cleanse, and refine the data needed for analysis and modeling.• Migrated legacy data sources to AWS Data Lake utilizing python, Airflow, and PySpark.• Developed ETL framework with python, PySpark, Hadoop, Sqoop, Hive/Impala, SQL, bash scripting, Bitbucket and Control-M.• Made information available to large scale, next generation, predictive analytics applications.• Designed robust, reusable and scalable data driven solutions and data pipeline frameworks to automate the ingestion, processing and delivery of both structured and unstructured batch data.• Developed, implement and support the ETL data infrastructure.• Managed code elevation from development to production environment.• Worked with CI/CD team to develop code deployment automation to various environments utilizing Jenkins.

Boulder, Colorado, Us

Taught data science fundamentals, by leveraging real-world data sets, with a Python-based curriculum. Helping student develop an intermediate skill level to solve business problems and master the tools in statistical programming, data-driven analysis, and data visualization.

Boulder, Colorado, Us

Conducted technical interviews, with prospective students for Galvanize's Data Science Immersive, covering python fundamentals, math, statistics and modeling concepts.

Denver, Co, Us

Developed electric energy asset and contract valuations for acquisitions,divestitures and tax litigation through market analysis and financial modeling.• Counseled associates on market conditions as natural gas market specialist. • Designed a model to forecast fuel prices utilized in proprietary electric market forecast and sold in suite of company products.• Provided weekly natural gas market evaluation.• Performed power market and operational analytics for proprietary power market model and numerous projects.

Houston, Tx, Us

Delivered comprehensive planning strategies for the Rocky Mountain Region, fostering strong cross-functional communication to ensure alignment across all business units in the organization.• Produced economic analyses, quarterly forecasts, annual budgets, and 5-year investment plans for Rocky Mountain region, delivering insights to upper management for strategic decision making.• Managed complex interdisciplinary projects, including economic, development, and maintenance plans to consistently achieve production forecast accuracy of over 97%.• Developed well maintenance tradeoff analysis, embraced by the production team, improving cash flow by over $2 million per year

Dallas, Texas, Us

Supervised on-site drilling operations, achieving significant reductions in drill times and costs while maintaining strict compliance with safety standards.• Designed and prepared well construction plans, contributing to the successful delivery of 68 oil and gas wells in the Permian Basin and over 100 in the Uinta Basin.• Analyzed drilling performance data to uncover insights that improved operational efficiency by over 25%.• Leveraged multi-basin expertise to enhance drilling efficiency in new operational areas.• Provided 24/7 support for rig operations, collaborating with field teams to troubleshoot and resolve challenges in real time.• Hosted daily conference calls with rig supervisors and office drilling teams to ensure alignment and operational excellence.• Partnered with vendors, contractors and service providers to ensure optimal equipment performance and service quality.• Implemented enhanced drilling data capture processes and trained field personnel, improving data analysis capabilities.• Served as Wellview administrator, training office and field teams to streamline data capture and maximize analysis efficiency.

Olathe, Kansas, Us

Prepared Geotechnical Engineering Reports and managed geotechnical investigations for the design of foundations, roads, and slope stability.• Prepared Geotechnical Engineering reports for developer’s construction implementation.• Designed spread footing, mat, and drilled pier foundations.• Coordinated drill crews and rigs while determining sampling schedules and lab testing basedon project scope.• Performed compression and tension load tests on helical pier foundations for data collectionfor foundation design.• Performed Groundwater monitoring, well installation, and observation.

Data Science Immersive, Data Science

Master Of Science (M.S.), Geotechnical And Geoenvironmental Engineering

Bachelor Of Science (Bs), Civil Engineering