David Raya

Operations Data Analyst @ Toho Water Authority

About

I thrive on turning raw data into powerful insights that drive business decisions. With experience in data extraction, transformation, and visualization, I specialize in making sense of suboptimal data, cleaning, and delivering high-impact dashboards that empower organizations to act with confidence. In my career, I’ve built countless dashboards from fragmented datasets, automated reporting workflows, and streamlined decision-making processes for operations teams. Whether it's designing dashboards, cleaning messy data, or uncovering hidden trends, I’m here to make data work smarter.

Country

United States

City

Kissimmee

Industry

Logistics & Supply Chain

Skill

SQL, Microsoft Power BI, Microsoft Excel, Looker (Software), Alteryx, Python (Programming Language), Pandas (Software), Tableau, R (Programming Language), Data Visualization, Analytics, Programming, Customer Satisfaction, Data Analytics

Experience

Operations Data Analyst

Toho Water Authority

2024-12 - Present · 1 yr 10 mos

Design and develop interactive dashboards in Power BI, providing real-time insights that improve decision-making. Automate data extraction and cleaning, reducing manual processing time. Manage and administer company databases, ensuring data integrity and optimization. Identify trends and inefficiencies, leading to data-driven operational improvements.

Data Consultant

Raya Analytics

2023-5 - Present · 3 yrs 5 mos

Automate manual reporting processes, saving countless hours each quarter. Develop dynamic dashboards in Power BI for real-time business insights. Optimize workflows using SQL, Python, and Excel to improve efficiency. Extract and structure complex datasets for better decision-making.

Data Engineering and AI Training Specialist

DataAnnotation

2024-1 - 2024-9 · 9 mos

Labeled and classified large-scale datasets for AI model training, ensuring 99% accuracy. Worked with data structures and basic coding scripts to refine dataset quality. Developed an eye for pattern recognition and anomaly detection, contributing to enhanced model performance.