Rajesh Rimmalapudi
Data Engineer @ Cognizant
About
Programmer Analyst (Data) at Cognizant with hands-on experience building and maintaining scalable ETL/ELT pipelines and cloud-native data platforms on AWS and Azure. Strong in SQL, Python, PySpark, and data warehousing, with a proven ability to improve data quality, pipeline reliability, and deliver analytics-ready datasets. Backed by solid AI/ML foundations and industry certifications, I focus on building robust data systems that enable analytics, automation, and data-driven decision-making.
India
Hyderabad
Computer Software
Root Cause Analysis, Storages, Azure Databases, Apache Spark, Recruiting, Databricks, Amazon Relational Database Service (RDS), MapReduce, Hadoop, Microsoft Power BI, Data Warehousing, Data Modeling, Continuous Integration and Continuous Delivery (CI/CD), Prompt Engineering, GitHub, Generative AI, Apache Kafka, Apache Airflow, Communication, Time Management
Experience

Data Science Internship Trainee
Datavalley India Pvt Ltd

Project Intern
online
• Orchestrated a groundbreaking project that harnessed wireless sound control through finger sign gestures, achieving a remarkable 15% increase in user satisfaction compared to traditional volume adjustments. • Spearheaded a comprehensive Natural Language Processing (NLP) initiative by contributing to sentiment analysis of restaurant reviews, resulting in a 95% accuracy rate in sentiment classification. • Fostered a collaborative environment by actively engaging with mentors and peers, which led to a 40% reduction in issue resolution time and showcased strong interpersonal and communication skills.

Internship Trainee
online
• Collaborated in a cross‑functional team of 6 interns, developing an AI‑powered chatbot that reduced customer query response time by 30%. • Developed and tested Python scripts for data preprocessing, reducing data preparation time by 25% and enhancing overall efficiency. • Independently completed a comprehensive project on anomaly detection, achieving a precision score of 92% and showcasing proficiency in practical AI applications. • Attended the 10 weeks of course classes without fail and completed the internship successfully

Project Intern
online
Led a project focused on self‑driving cars, achieving a 23% reduction in prediction error for steering angles through advanced AI techniques. • Developed and fine‑tuned a deep learning model, resulting in a 17% increase in overall accuracy compared to baseline models. • Collaborated effectively in a remote team of interns, facilitating seamless communication and delivering project milestones on schedule.
Rajesh Rimmalapudi's Contact Information
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