Ki Joon Lee

240.918.1910 | kijoonlee916@gmail.com | Hanover, MD

Professional Summary

SQL-focused developer with experience supporting database-driven business systems, building reporting workflows, and automating recurring tasks. Worked with SQL Server, T-SQL, Python, and AWS RDS in multi-site retail environments, with a strong focus on data accuracy and keeping day-to-day operations running smoothly. Looking to continue growing in data engineering and automation-focused work.

Skills

Data Engineering : SQL, T-SQL, ETL workflows, data transformation, data synchronization, reporting, relational schema design, query optimization
Databases & Cloud : SQL Server, SQL Server Agent, AWS RDS, basic MySQL familiarity
Programming : Python, C#, JavaScript, Java, Visual Basic
Tools : Git, GitHub, VS Code, SQL Server Management Studio (SSMS), WinForms

Experience

Jastintech
Programmer Analyst Associate
Ellicott City, MD
  • Built Python-based automation tools to reduce repetitive manual work and improve consistency across internal workflows.
  • Developed scripts for document and invoice processing, helping reduce manual errors in day-to-day operations.
  • Used scripting and Git to update internal tools and support ongoing process improvements.
Beauty4U
Database Developer
Temple Hills, MD
  • Supported a SQL Server-based POS and ERP environment used across 20+ retail locations, helping keep daily operations reliable.
  • Developed stored procedures and SQL Server Agent jobs to automate data synchronization between store databases and a central system.
  • Built and maintained T-SQL reporting workflows for sales, inventory, and customer data, with a focus on data accuracy and query performance.
  • Helped migrate operational databases from on-premises SQL Server to AWS RDS, coordinating schema and data changes to reduce downtime.

Projects

Personal Portfolio Website
  • Built and maintain a personal website to showcase technical projects and development work:
    www.standardlee.info

Education and Training

University of Maryland
Bachelor of Computer Science
College Park, MD
U.S. Army Reserve
Automated Logistics Specialist
Suffolk, VA
Northern Virginia Community College
Associate of Science, Computer Science
Annandale, VA