Hello! I'm Shashi Ranjan, a passionate Data Science professional with a strong foundation in Computer Science. I recently completed my M.Tech in Data Science from the Indian Institute of Information Technology, Lucknow. Previously, I earned my B.Tech in Computer Science from UTU, Dehradun, graduating with a First Division with Honours degree.Early Interests and Academic PursuitsFrom an early age, I was fascinated by technology and data. This led me to pursue a degree in Computer Science, where I excelled in subjects like Data Structures, Algorithms, Database Management Systems, and Operating Systems. I actively participated in tech fests and coding competitions, further sparking my interest in data science and analytics.Professional ExperienceData Science Intern at Walmart Global Tech, BengaluruAt Walmart, I worked on projects enhancing customer satisfaction metrics. I analyzed pivotal features, processed data with Z-score to remove outliers, and used K-means clustering and Linear Regression to calculate Post Purchase Scores, helping identify counterfeit products. This reduced return and cancellation rates by 15% and increased repeat purchases by 10%. My work demonstrated my ability to leverage data science techniques for tangible business outcomes and improved my collaboration and communication skills.Data Analyst at Jio Platforms LimitedAt Jio Platforms, I developed an advanced movie recommendation system using Singular Value Decomposition (SVD) and eXtreme Gradient Boosting (XGBoost). This hybrid recommendation system increased user engagement by 25% and boosted user retention by 20%. This experience enhanced my technical skills and taught me the importance of understanding user behavior and preferences.Skills and TechnologiesLanguagesProficient in C, C++, HTML, CSS, Python, SQL, and JavaScript.Data Analysis & Machine LearningExperienced with Pandas, NumPy, Scikit-Learn, TensorFlow, and Seaborn.Development Tools & PlatformsFamiliar with Git, MySQL, VS Code, Microsoft Excel, Apache Airflow, Docker, PowerBI, and Tableau.Big Data & Distributed SystemsSkilled in Apache Kafka, PySpark, Hadoop, and Google BigQuery.Soft SkillsStrong abilities in leadership, people management, communication, time management, analytical thinking, and problem-solving.