MKData Science Intern

Aspiring professional starting a career

I am beginning my career journey and looking for opportunities to learn, grow, and contribute.

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Work samples

A collection of early projects, coursework, and practice work that show what I am learning and where I am developing skills.

  • GNN + LLM Portfolio Optimization | M.Sc. Thesis; GraphSAGE, FinBERT, Mistral-7B, PyTorch
    GNN + LLM Portfolio Optimization | M.Sc. Thesis; GraphSAGE, FinBERT, Mistral-7B, PyTorch

    Built a PyTorch pipeline combining GraphSAGE stock-relationship embeddings with FinBERT news sentiment, alongside a separate LLM-based scorer (Mistral-7B) that ranked stocks from prompted news summaries. Designed and ran backtests comparing four strategies Markowitz baseline, GNN-only, GNN + FinBERT, and the LLM direct scorer and found news-coverage quality, not model architecture, was the main constraint on the LLM scorer's returns.

    GraphSAGEFinBERTMistral-7BPyTorch
  • Sentiment Analysis with Deep Learning and MLOps | TensorFlow, PyTorch, Flask API, AWS EC2, Prefect, MLflow
    Sentiment Analysis with Deep Learning and MLOps | TensorFlow, PyTorch, Flask API, AWS EC2, Prefect, MLflow

    Built and compared LSTM and CNN classifiers on 8,518 Flipkart reviews, selecting the final model by F1-score after feature engineering and hyperparameter tuning; reached 85%+ accuracy. Served the model through a Flask API on AWS EC2 with monitoring, and automated training and deployment with Prefect, tracking experiments and versions in MLflow.

    TensorFlowPyTorchFlaskAWS EC2PrefectMLflow

About me

I am beginning my career journey and looking for opportunities to learn, grow, and contribute.

I am Mayur Kumar Sourav. I have little work experience and have not yet started my career. I am exploring opportunities to begin my professional journey.

Experience

Data Science Intern

Innomatics Research Labs · January 2024 March 2024

Education

Vellore Institute of Technology

M.Sc. Data Science GPA 8.47/10

Christ University, Delhi NCR

B.Sc. Data Science & Artificial Intelligence Honours GPA 8.5/10

Skills

Willingness to learnExploring career-focused skills
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GNN + LLM Portfolio Optimization | M.Sc. Thesis; GraphSAGE, FinBERT, Mistral-7B, PyTorch

Built a PyTorch pipeline combining GraphSAGE stock-relationship embeddings with FinBERT news sentiment, alongside a separate LLM-based scorer (Mistral-7B) that ranked stocks from prompted news summaries. Designed and ran backtests comparing four strategies Markowitz baseline, GNN-only, GNN + FinBERT, and the LLM direct scorer and found news-coverage quality, not model architecture, was the main constraint on the LLM scorer's returns.

GraphSAGEFinBERTMistral-7BPyTorch
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Sentiment Analysis with Deep Learning and MLOps | TensorFlow, PyTorch, Flask API, AWS EC2, Prefect, MLflow

Built and compared LSTM and CNN classifiers on 8,518 Flipkart reviews, selecting the final model by F1-score after feature engineering and hyperparameter tuning; reached 85%+ accuracy. Served the model through a Flask API on AWS EC2 with monitoring, and automated training and deployment with Prefect, tracking experiments and versions in MLflow.

TensorFlowPyTorchFlaskAWS EC2PrefectMLflow
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Time Series Forecasting for the Aviation Industry | TensorFlow, ARMA, ARIMA, LSTM, SatScan

Prepared India civil-aviation financial data (handling autocorrelation, heteroscedasticity, non-stationarity) and compared ARMA, ARIMA, and LSTM forecasting models through structured evaluation. Ran SatScan spatial analysis to identify hotspots supporting infrastructure-planning recommendations; guided a team of three on model selection.

TensorFlowARMAARIMALSTMSatScan
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Retail Sales Analytics Dashboard | SQL, Pandas

Cleaned and validated 10,000+ Blinkit sales records; engineered derived KPI metrics for segmentation and performance analysis. Ran exploratory analysis in SQL and Pandas to identify sales patterns, trends, and anomalies; built an interactive dashboard with drill-downs tracking Total Sales, Average Sales, Item Count, and Average Rating.

SQLPandas
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