Thiruchelvan P J

Data Analyst | Business Analyst | Python · SQL · Power BI · Tableau · ML | Turning Raw Data into Decisions | Open to Internships

Greater Chennai Area

About

Data doesn't lie - but it needs someone to make it speak clearly. I'm a Computer Science student specialising in Business Analytics at VIT Chennai, and I build end-to-end analytics pipelines: from raw, messy datasets to dashboards that executives can act on. My work spans the full analyst stack - data cleaning and transformation in Python and SQL, predictive modelling with scikit-learn and XGBoost, anomaly detection using Isolation Forest, and business reporting through Power BI and Tableau. I've applied these in real environments: as a Business Analyst tracking campaign KPIs across two retail operations, and through projects covering NLP-based trend analysis, data quality monitoring, and ML-powered forecasting. What drives me isn't the tools - it's the moment a stakeholder sees a number they didn't know they needed and changes a decision because of it. Currently seeking data analyst internships across fintech, consulting, e-commerce, and enterprise analytics. Available immediately. Skills: Python · SQL · Pandas · NumPy · Scikit-learn · Power BI · Tableau · Matplotlib · ETL · REST APIs · MongoDB · Git

Experience

  • Business Analyst at Novoz Infinity
    Sep 2025 - Dec 2025 · 4 mos

    Owned analytics and reporting across two offline retail operations. Built KPI dashboards tracking campaign performance, customer engagement, and sales conversion - giving leadership a single source of truth where there previously wasn't one. Used Python and Excel to clean, transform, and analyze operational datasets, surfacing trends that directly informed marketing spend decisions. Grew social media engagement through data-driven campaign targeting, then measured the results and reported back with structured insights. Trained and mentored 4 junior team members on analytics tracking and reporting workflows - improving team-wide reporting accuracy and consistency.