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umashankar prajapati

Profile Score

Skills & Expertise (21)

SQL Intermediate

7.1/10

Years Exp

MongoDb Intermediate

6.5/10

Years Exp

Python Beginner

5.8/10

Years Exp

KPI Monitoring C++ R Matplotlib scikit-learn NumPy Pandas Data Cleaning Forecasting Excel Cohort Analysis Funnel Tracking Google Workspace Google Sheets Tableau Formulas VLOOKUP Pivot Tables

Work Experience

SQL Annotator

Sepal AI

Oct 2025 - Jan 2026

Enhanced Text-to-SQL AI models by encoding complex business logic like activation thresholds and growth metrics. Conducted rigorous code reviews to eliminate hallucinations and ensure strict syntax compliance on synthetic data.

Admin Portal & Dashboard Developer

IIT Jodhpur SRRLH Library

May 2024 - Sep 2024

Built a data pipeline (MongoDB + SQL), optimizing performance for 1200+ users and reducing API latency by 83%. Developed an interactive dashboard with KPIs (logins, searches, app opens, feedback) to track trends and engagement. Implemented a feedback system with filters, resolution tracking, and direct email responses to improve problem handling.

Data Analyst Intern

Oasis Infobyte

Jun 2024 - Jul 2024

Conducted EDA on retail sales datasets, uncovering hidden patterns and insights that shaped strategic business decisions. Performed customer segmentation and applied BCG & GE McKinsey matrices to optimize marketing, and assess lifecycle.