Skills
Proficiency ratings reflect daily-use confidence across production contexts. Every bar corresponds to skills applied in the projects and roles on this portfolio.
Programming & Engineering
Primary language across all projects — ETL, NLP, data quality, analysis.
Medallion pipeline design, watermark queries, audit tables.
Statistical analysis for research projects and sales data reporting.
Incremental loads, rerun safety, schema-drift detection, medallion architecture.
Mobile app development for mHealth AI research project.
Data Analysis & BI
Reproducible workflows with publication-ready visuals.
Regression analysis, t-tests, chi-square, hypothesis testing, confidence intervals, A/B experiment design, precision/recall evaluation.
Dashboard design and executive reporting for business stakeholders.
Rerun-safe incremental ingestion with audit logging.
Retraction dataset annotation for research-quality labeling.
ML, NLP & Research
Sentence Transformers for EN↔ZH cross-lingual quality detection.
Text classification and topic extraction for metadata analysis.
Fine-tuned open-source LLMs for healthcare guidance quality and safety.
Inventory demand forecasting with macroeconomic external factors.
Survey instruments, qualitative coding, behavioral experiment design, transcript analysis.
Manuscript drafting, dataset documentation, conference posters (published).
Certifications
- IBM Data Engineering Professional Certification — IBM / Coursera
- Google Business Intelligence Professional Certification — Google / Coursera
- Google Project Management Professional Certification — Google / Coursera