Portfolio · Accra, Ghana

Deepa Sijoy

BI Analyst & data analytics consultant — SQL, Power BI and Python, applied to real business problems in banking, education and NGO operations. 10+ years of operations experience, plus a growing set of independent analytics projects over the last two years.

SQL Power BI · DAX · Power Query Python (Pandas, Scikit-learn) Data Modelling Excel MIS & Financial Reporting VADER NLP

Projects

Independent and portfolio work, most recent first. Each links to its GitHub repo.
Telco churn Power BI dashboard — executive summary page Feature importance chart from the churn prediction model
Telco Customer Churn Analysis
ML + Power BI

End-to-end churn prediction and analytics solution: Logistic Regression, Random Forest and Gradient Boosting models identify at-risk customers, feeding a six-page interactive Power BI dashboard covering revenue-at-risk, churn drivers, and retention recommendations.

Python Pandas / Scikit-learn Power BI DAX
Loan eligibility web app — home page Loan eligibility web app — prediction result
Loan Eligibility Prediction Model
ML + Flask

A Logistic Regression model predicting loan eligibility for a mock housing-finance scenario, deployed as a Flask web app with MySQL-backed user registration and login, and instant eligibility results.

Python Flask Scikit-learn MySQL
NGO STEM Training Feedback Analytics
Power BI + NLP

Consolidated multi-sheet teacher feedback from a STEM training program into a relational data model (FactFeedback + Master Teacher table), then built a multi-page Power BI dashboard with drill-through by school/zone, plus VADER sentiment analysis on open-text responses.

Portfolio version uses anonymized, representative data — the original was built on proprietary NGO data; methodology and dashboard design are unchanged.

Power BI Power Query DAX Python VADER NLP
Social Media Engagement Analysis
ML + EDA

Feature engineering and exploratory analysis on a social media dataset, feeding a Random Forest model that predicts engagement. Identified like-to-impression ratio, impressions, and share ratio as the strongest drivers, with recommendations for content strategy.

Python Pandas Scikit-learn Feature Engineering

Background

10+ years across operations, education and freelance analytics.
2026
Freelance BI Analyst
Independent — Ghana / remote
Client case studies (not linked publicly — private client data): automated multi-country Excel sales reporting for a West Africa FMCG distributor (Ghana/Togo/Benin), and built a Power BI dashboard with Python NLP sentiment analysis for an education NGO's STEM program evaluation.
2013–2019
Vice Principal & Financial Administrator
International School, Mozambique
Led institutional financial administration, budgeting oversight, and expenditure reporting; produced periodic MI reports and implemented structured financial reporting frameworks for school leadership.
2001–2006
Deputy Manager, Credit Operations & Channel Finance
UTI Bank (now Axis Bank), India
Produced MI dashboards and variance reports on portfolio performance and delinquency trends for senior executives; managed MIS reporting and reconciliations across two banking systems, and high-volume RTGS and custodial operations for major corporate clients.