Sai Krishna Email & Phone Number

As a Senior Data Scientist with over 8 years of experience, I leverage machine learning and data science to address complex business challenges. My expertise encompasses the entire data science lifecycle, from data acquisition and preprocessing to predictive modeling and visualization.I excel in Python (versions 2.x and 3.x) and R, utilizing libraries such as NumPy, Pandas, SciPy, Scikit-learn, XGBoost, LightGBM, Keras, TensorFlow, and PyTorch. My proficiency extends to SQL/PLSQL, enabling effective database manipulation and complex query writing. I am skilled in developing ETL pipelines using Informatica, and managing big data technologies including Hadoop, Apache Spark, Hive, and HDFS.Key Skills & Tools:Data Modeling & ETL: Designed and implemented 3NF, Star, and Snowflake schemas. Developed ETL processes using Informatica, Azure Data Factory (ADF), and performed data manipulation with SQL tools like Teradata SQL Assistant and Oracle SQL Developer.Big Data Technologies: Experienced with Apache Hadoop, Spark, Hive, and HDFS for scalable data processing and analysis.Database Management: Proficient in SQL Server, MySQL, PostgreSQL, MongoDB, Cassandra, and HBase for managing both relational and NoSQL databases.Data Visualization: Created interactive dashboards and reports using Tableau, Power BI, QlikView, and Alteryx.Advanced Analytics: Applied machine learning algorithms including Decision Trees, Random Forests, Naive Bayes, Logistic Regression, and Neural Networks. Utilized statistical techniques like PCA, Hypothesis Testing, and Time Series Analysis.Software & Platforms: Utilized PyCharm, RStudio, Azure ML, IBM Watson Studio, and other IDEs for development and analysis.At Signify Health, I developed and deployed machine learning solutions, while at Charter Communications, I managed big data projects and predictive analytics. My role at Northern Trust involved advanced statistical modeling and data warehousing, and my early career at Synechron Technologies and High Radius Technologies provided a solid foundation in SQL development and data engineering.I am dedicated to fostering a data-driven decision-making culture within organizations and continuously enhancing my technical skills to stay ahead in the rapidly evolving field of data science.