About

Work Experience

• Data Engineer, Information Technology Service Center (ITSC), Chiang Mai University

  Jan, 2024 - Present

  • Spearheaded a major architectural refactor across 96 files to migrate legacy script-based systems to standardized Python packaging (PEP 517/621).

  • Eliminated 30+ 'sys.path' technical debt locations, achieving 100% environment portability and reducing system complexity.

  • Designed and optimized Hadoop/Spark pipelines and Airflow DAGs for high-reliability production environments.

  • Implemented a robust CI/CD suite with 315+ automated tests using GitHub Actions, ensuring zero-downtime deployments.

Projects Experience

• Finance Data Lake Platform (CMU ITSC)

  - Present

  Designed and built a production data lake platform from scratch for Chiang Mai University's financial data, serving as the sole engineer across the full stack — ingestion, transformation, schema management, monitoring, and NLP-powered analytics dashboard.

  • Architected end-to-end ETL pipelines using PySpark, Hive, and HDFS handling real organizational financial data.

  • Built a schema evolution and version management system with automated approval workflows and audit logging.

  • Developed an NLP-powered analytics dashboard (Streamlit + OpenAI) enabling natural language queries over financial datasets.

  • Implemented automated data quality validation rules and statistical trend monitoring across all datasets.

  • Established full CI/CD pipeline (GitHub Actions, 7 jobs) with 315+ unit and integration tests — zero-downtime deployment standard.

• Real-time Stock Tracker (Solo Portfolio Project)

  - Present

  End-to-end financial data platform built solo, demonstrating full ownership from data ingestion to interactive dashboard — a rare combination at this experience level.

  • Built a complete data pipeline using yfinance, DuckDB, and Polars for high-performance financial data processing.

  • Developed a multi-page Streamlit dashboard with Daily Briefing, Unified Insight Hub, and Data Freshness monitoring.

  • Implemented performance instrumentation, silent failure detection across 62 code paths, and structured code quality standards.

  • Currently extending toward cloud-native deployment across multiple providers (Databricks, AWS, GCP, Azure) as a hands-on cloud learning vehicle.

• Namjai Website (Full-stack Development)

  - Present

  Developed a comprehensive web application using Java Spring Boot, focusing on RESTful API design and database optimization.

  • Designed and implemented secure backend services and RESTful APIs.

  • Optimized SQL schemas to handle high-concurrency user traffic.

Skills

Education