What I Do
AI Development & Evaluation
Design and refine LLM prompts, evaluate model outputs, and build quality workflows that improve reliability, safety, and real-world usability.
Data Analytics & Automation
Analyze operational data and build lightweight automation and dashboards that translate raw data into clear business decisions.
AI Operations & Coordination
Coordinate cross-functional projects, streamline processes, and align stakeholders to deliver AI and data initiatives efficiently.
Experience
- Designed, tested, and refined system prompts and instruction templates for Korean and English LLM use cases to improve clarity, safety, and response relevance.
- Evaluated single-turn and multi-turn outputs, identifying hallucination, ambiguity, verbosity, and instruction-following failures.
- Conducted structured qualitative error analysis using internal evaluation tools, documenting failure patterns and recommendations.
- Reduced hallucinations and improved instruction adherence by up to 20% through prompt rewording and contextual hints.
- Managed 3 high-impact AI training projects, including one contributing ~25% of quarterly company revenue.
- Trained and supported 200–1,000 contributors via onboarding sessions, office hours, and training materials to scale throughput and quality.
- Acted as the primary interface between stakeholders and contributors to resolve blockers and align daily workflows.
- Applied SFT and RLHF-based auditing to improve data quality and consistency for model training.
- Integrated TypeScript into an existing JavaScript front-end project, contributing to a 20% drop in bug reports and improved maintainability.
- Resolved issues across React, GraphQL, and TypeScript layers on an analytics/dashboard product surface.
- Boosted test coverage by ~10% using Jest and React Testing Library to improve reliability and regression safety.
- Built automated ETL pipelines using shell scripting and Azure DevOps to process large daily datasets.
- Improved workflow efficiency by ~200%, reducing manual processing time and operational overhead.
- Developed Databricks SQL queries and integrated analytics into Power BI dashboards for non-technical stakeholders.
- Created internal PowerApps applications, including a COVID pre-screening tool and an on-call alarm system.
- Gathered requirements from security/operations stakeholders and translated them into UX/UI designs with high adoption.
- Automated internal workflows using Power Automate and supported troubleshooting for internal C# applications.
Projects
Eco Picker
A Flutter app that gamifies everyday trash-picking by rewarding users with points based on waste impact.
Motive Optimize
A web application for web testing and analytics dashboards that helps marketing teams optimize user impressions and design efficiency.
Your YYC
An interactive C# tourist information kiosk designed to help short-term visitors explore Calgary, build itineraries, and export personalized trip plans.
TorontoTechJobs
A job board application focused on tech jobs in the Greater Toronto Area (GTA) and remote positions.
Endless Trivia
A real-time online trivia game that allows friends and family to play together remotely.
Leadership
- Coordinated communication and scheduling across 60+ volunteers, teachers, students, and school leadership.
- Standardized volunteer operations to improve planning consistency across school programs.
- Designed and maintained the school website using Wix.
- Planned and executed large community events including K-Poppers (2020/2022) and Talknet (2019/2023).
- Managed participant logistics for 250+ attendees and coordinated volunteer teams end-to-end.
- Led recruiting and scheduling to ensure smooth event-day execution and staffing coverage.
- Prepared and performed wreath-laying ceremonies for Korean War Veterans Day.
- Arranged and delivered relief supplies to veterans and their families.
- Coordinated the installation of the Korean War Gapyeong Battle Victory Monument in Airdrie through stakeholder presentations to the Mayor of Airdrie and RCL 288.
- Managed documentation, meeting minutes, and internal coordination workflows.
- Improved information flow across leadership and operations teams.
