HADONG PARK

about me

Who I am

Data Analyst and technical problem solver with hands-on experience in SQL, ETL, reporting automation, dashboard support, and production systems.

I focus on turning operational pain points into clean, measurable workflows and reliable systems teams can use every day.

hadongpark10@gmail.com
LinkedIn | GitHub
F-1 OPT (STEM OPT eligible) | Trilingual: English, Korean, Spanish

core skills

What I bring

Analytics

SQL, data cleaning, ETL, KPI analysis, reporting, forecasting support, root cause analysis.

Tools & Platforms

Excel, Power BI, Tableau (learning), Azure, Postman, Jira, workflow automation systems.

Technical Stack

Python, JavaScript, PHP, R, MySQL, PostgreSQL, SQL Server, MongoDB, APIs, Linux.

professional journey

Experience

Blue Screen Solutions, LLC - Junior Full-Stack Developer / Data Systems Analyst

Aug 2025 - Present
  • Supported business operations by managing data across systems serving 200+ users and 20 locations.
  • Built SQL-backed reporting features for child check-in/check-out tracking and operational visibility.
  • Automated real-time notifications and status monitoring to improve workflow response time.
  • Maintained MySQL production data integrity, deployments, and Linux/Nginx support.
  • Produced bilingual technical documentation for staff and future developers.

National Healthcare Solutions Inc. - Data Analyst Intern

May 2023 - Aug 2023
  • Performed full ETL migration from legacy database to Microsoft SQL Server.
  • Wrote SQL scripts for transformation, validation, and data integrity checks.
  • Built AI-powered support automation reducing manual inquiry workload.

Vumi Group - Web Developer Intern

May 2024 - Aug 2024
  • Improved PDF reporting and medical document output systems using PHP.
  • Delivered business-requested updates on time in Agile Jira sprints.

Calvin University - Resident Assistant

Aug 2023 - May 2025
  • Managed operations and support for a 40+ student residential community.
  • Developed leadership, conflict resolution, and accountability under real constraints.