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I Built a two-page Power BI dashboard on 190K+ FMCG transactions — tracking revenue, SKU performance, promotional impact, and delivery across 3 channels and 3 regions. Uncovered a balanced 33% revenue split across all channels and identified the top 3 revenue-driving SKUs for smarter inventory decisions.
Tools: Power BI · DAX · Excel
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
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🚀 In this project, I handled data entry, web research, and data analysis tasks with high accuracy. I used Excel & Google Sheets to organize, clean, and manage data efficiently. 📊 Focused on fast delivery, error-free work, and clear formatting to ensure quality results. 🎯
Combining data entry, web research and analysis in one project is a strong value offer — clients don't have to coordinate between multiple freelancers. The clean formatting on the revenue sheet stands out. Was this a real client project or a portfolio sample?
Sentiment-Driven E-commerce Optimization: Amazon Review Analysis & Rating Prediction.
Project Overview ✅
This project serves as a machine learning proof of concept designed to transform raw Amazon product reviews into actionable business insights. By automating the prediction of review ratings and analyzing customer sentiment, the system enables brands to optimize product listings, proactively address customer pain points, and drive higher conversion rates.
Process ✅
I developed an end-to-end pipeline covering data acquisition, complex text processing, and model deployment. Automated Data Scraping, Integrated the Apify API to extract real-time customer feedback directly from Amazon product URLs. I configured the scraper to handle up to 100 reviews per run, capturing critical metadata including rating scores, review descriptions, and verified purchase status.
Data Refinement & Feature Engineering:
Cleaned a dataset of approximately 1,944 reviews by removing noise (punctuation/symbols) and stop words using NLTK. I implemented TF-IDF Vectorization to convert text into numerical features and applied SMOTE (Synthetic Minority Over-sampling Technique) to address class imbalance, ensuring the model could accurately predict rare negative reviews.
Model Benchmarking ✅
Developed and compared three distinct architectures to identify the most robust predictor:
Naive Bayes: High-speed probabilistic classification.
Support Vector Classifier (SVC): Optimized for high-dimensional text data.
Neural Network (MLPClassifier): To capture complex semantic patterns.
Web App Deployment: Built a dedicated Streamlit dashboard that allows non-technical stakeholders to input raw review text and receive instant rating predictions with confidence scores.
Technical Stack✅
Languages & Tools: Python, Apify Client.
ML & NLP Libraries: Scikit-learn (SVC, Naive Bayes, MLP), NLTK (Tokenization, Stopwords), Imbalanced-learn (SMOTE).
Deployment: Streamlit, Joblib (Model Serialization).
Visualization: Plotly, WordCloud, Matplotlib.
Key Results ✅
Achieved a peak accuracy of 95.27% using the Neural Network model, with the SVC model following closely at 94.46%.
Developed sentiment-based feedback loops within the app: high ratings (4-5 stars) trigger positive marketing recommendations, while low ratings (1-2 stars) alert teams to address product issues like battery life or build quality.
Enabled real-time competitive analysis by providing a user-friendly interface for cross-functional marketing and product development teams to audit customer sentiment at scale.
dashboardPythonmachinelearningMachine Learning EngineeringData AnalysisData VisualizationApifyStreamlit
Interesting
Let’s Scale Your Brand with Data-Driven Email Marketing!
Hi there! I'm Mominur Rahman, and I help brands turn their email lists into revenue-generating machines.
In this quick video, I’m sharing how I combine Email Strategy with Data Analytics to deliver results that actually matter. Whether it's building high-converting automation flows or optimizing your cold outreach, I’ve got you covered.
What I bring to the table:
Full-Stack Automation: Welcome Flows, Abandoned Carts, & Win-back campaigns.
Data-Backed Decisions: Using Power BI & SQL to track ROI and optimize performance.
High-Converting Copy: Subject lines that get opened and bodies that get clicked.
Watch the video to see how we can work together!
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