David Sierra Email & Phone Number

Santa Clara, Ca, Us

Salem, Oregon, United States

I design standard and custom reporting solutions using the MS Power Platform and Python for an IT Project Management Office (PMO). By integrating analytics, and automating processes, I uncover insights within complex data and develop bespoke measures tailored to product needs.Key Achievement:Reduced enterprise portfolio refresh time by ~92% through data modeling, and query folding techniques.

Oregon, United States

𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐢𝐧𝐠 𝐃𝐚𝐭𝐚, 𝐔𝐧𝐥𝐨𝐜𝐤𝐢𝐧𝐠 𝐎𝐩𝐩𝐨𝐫𝐭𝐮𝐧𝐢𝐭𝐲 📈Unlock your data’s potential with our advisory services, empowering learners to achieve transformative results. I've guest lectured at Stanford, Golden Gate, and the University of Washington, sharing best practices in analytics, data science and financial engineering. As a published author in the Journal of Engineering and Applied Sciences Technology, I’m dedicated to advancing data democratization - the process of making it accessible and understandable.

Maryland, United States

As a consultant to the Department of Veterans Affairs (VA), I developed predictive models and designed executive dashboards that mitigated enterprise waste in supply chains, boosting operational efficiency by 20% and earning commendations from leadership.

Wilmington, North Carolina, United States

Led development of an interactive Tableau dashboard for early disease diagnosis using Python and TigerGraph. Leveraged Convolutional Neural Networks and Kernel Density Estimation within a framework to enhance diagnostic transparency and accuracy.Integrated AI/machine learning models, optimizing the minimum viable product and significantly improving user engagement and clinical decision making.

Travis Afb, California

Serving as a Sergeant and Contracting Officer’s Representative (COR) at the Air Force's largest medical center, I managed a diverse array of medical contracts, integrating advanced procurement and quality assurance frameworks to enhance healthcare readiness. Beyond overseeing laboratory contracts and support staff, I spearheaded improvements in the Prime Vendor Pharmaceutical program, driving a 50% increase in critical supply availability amid global shortages.

Jbsa Lackland, San Antonio, Texas

Optimized supply chain and inventory management through data analysis for forward logistics clinics.

San Francisco Bay Area

Coached staff on fostering a High-Reliability Organization, driving operational excellence. Co-sponsored a DOD/VA risk mitigation policy with the Chief Medical Officer, improving accessibility and clinical currency, leading to an 86% reduction in safety events. Recognized with the Air Force Commendation Medal in October 2019 for these contributions.

Master Of Science - Ms, Business Analytics With High Honors, 3.98/4.00

Activities and Societies: Dean's List, Graduate Teaching Assistant for Advanced Statistical AnalysisFocused on Python, machine learning.

Bachelor Of Arts - Ba, Management

Dean’s List

Associate Of Arts And Sciences - Aas, Logistics, Materials, And Supply Chain Management

Sergeant's Association Scholar