Data Analyst (data validation/cleaning tasks that support annotation/model input quality)
Performed data cleaning, validation, and integrity checks on structured datasets, producing high-quality, error-reduced inputs intended to improve downstream model and analysis reliability. Developed and maintained documentation for data entry standards to ensure consistent labeling or annotation guidelines across datasets. Worked collaboratively with cross-functional stakeholders to maintain consistency and reduce data quality issues. • Cleaned and validated 10,000+ rows with systematic error checks • Improved accuracy to 99% via validation and quality assurance • Documented data entry standards for guideline adherence • Coordinated across teams to preserve data integrity across datasets