MERIN JOSEPH

• Developed and optimized backend systems and REST APIs using Python (Django, FastAPI) • Processed and validated large datasets with Pandas and NumPy, focused on data accuracy, consistency and performance • Optimized PostgreSQL/MySQL queries and application logic to improve system performance • Supported data validation, error detection and troubleshooting across backend pipelines • Collaborated cross-functionally to translate requirements into technical solutions; supported code review, testing and deploym

• Integrated and validated data from multiple structured sources using Python, Pandas and SQL • Performed data-quality checks to identify missing, inconsistent and duplicate records across datasets • Developed Python-based data-processing and reporting pipelines, using Pandas for transformation and SQL for querying and aggregation • Supported quantitative evaluations by cleaning and structuring raw data into analysis-ready formats

• Optimized backend and database performance • Refactored legacy systems for maintainability and reliability

Optimised relational-database performance and refactored legacy systems to improve maintainability.

• Developed applications using Java and Spring MVC • Implemented features for hospital management systems • Debugged and improved application performance • Maintained technical documentation

Developed Java/Spring MVC hospital-management features, diagnosed issues and maintained technical documentation.