Abhishek Kesari
Professional Summary
Data Scientist with 0-1 years of experience in machine learning, deep learning, and data analysis. Hands-on experience building supervised models, CNNs, and data pipelines using Python, Pandas, Scikit-learn, TensorFlow, and visualization libraries. Seeking an entry-level Data Science role to apply model-building, feature engineering, and EDA skills to deliver actionable insights and production-ready ML artifacts.
Technical Skills
Work Experience
- Performed end-to-end data cleaning and preprocessing on structured datasets using Python and Pandas, implementing reusable functions to standardize inputs for analysis and modeling.
- Conducted exploratory data analysis with Pandas and NumPy to discover feature distributions, missing-data patterns, and correlations that guided downstream feature selection.
- Developed visualizations using Matplotlib and Seaborn to highlight trends and anomalies; delivered clear charts that improved review speed during mentor feedback sessions.
- Prepared and transformed datasets for model training using scaling, encoding, and sampling strategies to address imbalance and improve input quality for ML experiments.
- Authored reproducible Jupyter notebooks and documented analysis steps and assumptions, facilitating knowledge transfer and enabling mentors to replicate experiments.
- Validated analysis artifacts and maintained version control with Git to ensure traceability of data transformations and experiment results across the team.
Projects
- Built supervised ML models (Logistic Regression and Random Forest) to predict customer churn on a telecom dataset of 7,000+ records.
- Performed feature engineering and hyperparameter tuning, raising model F1-score from 71% baseline to 84% through targeted transformations and parameter search.
- Documented modeling decisions, evaluation metrics, and visual summaries in Jupyter notebooks to support reproducibility and mentor review.
- Cleaned and transformed 5,000+ rows of raw retail sales data using Pandas to identify seasonal trends and top-performing product categories.
- Created a multi-chart visualization dashboard with Seaborn and Matplotlib that condensed monthly insights into a single-page summary adopted by the mentoring team.
- Provided actionable insights on product performance and seasonality to inform potential merchandising decisions.
- Developed a Python script that parses job descriptions and resumes to compute keyword match scores and rank candidate fit, automating manual screening across 50+ job descriptions.
- Implemented NLP preprocessing including tokenization and stopword removal using NLTK to extract meaningful skill tokens, achieving >90% term extraction accuracy in tests.
- Packaged parsing logic into reusable functions to streamline screening across multiple hiring scenarios.
- Built a real-time American Sign Language alphabet detection system using a CNN trained on a 26-class hand gesture dataset.
- Implemented an image preprocessing pipeline (grayscale conversion, Gaussian blur, thresholding, normalization) to reduce noise and improve live detection accuracy from webcam input.
- Added a 50-frame prediction confirmation mechanism to stabilize output and enable reliable word formation from continuous gestures.
Education
Certifications
Achievements
- Hackathon participation — working prototype: Participated in a hackathon conducted by Adhoc Network Company and developed a working prototype within 24 hours.
- Algorithmic problem solving: Solved 100+ coding problems in C and C++, strengthening algorithmic thinking and implementation skills.
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