Vignesh BALAJI
Vellore
Summary
Data Engineer with 3 years of Work experience in building Data intensive applications, tackling challenging architectural and scalability problems, collecting, sorting , Summarizing Processing data using Python in the Telecommunication field. Well-acquainted with Advance SQL, Python Data Manipulation and Data Processing framework
Overview
4
4
years of professional experience
Work History
Associate Engineer
Cognizant
Chennai
05.2020 - Current
Client:Verizon
- Built Python based Application to Extract all the input .DAT files received from JITR system at the end of cycle to generate Paraquet Report for DATA,MSG and Voice Modules
- Developed 20+ POST BILL Reports based on the Business Requirements where we perform various Data Manipulation and Sorting and summarization using Pandas Data frame and OOPS Methodology and calculate the Allowance logic and other required attributes for each Account.
- Translates Complex data into digestible reports for technical and non technical audiences
- Implemented Multithreading using threading module to reduce time complexity of the operations for efficient use of the memory
- Derived logic for 100+ attributes based on the user requirements and Performed Data Analysis and Data Summarization and convert them into a parquet file
- Developed Spark Application for Processing All parquet file generated to Spark tables
- Connected to oracle DB from python Application using Oracle CX API and Implemented SQL QUERIES to fetch the required DATA
Education
Bachelor of Electronics And Communication Engineering - BE
St. Joseph's Institute of Technology And Sciences
Chennai10-2020
Skills
- Python
- SQL
- SPARK
- Linux/Unix Scripting
- Python Librarys:Pandas,Numpy,PYSPARK,FileHandling
- Data visulaization Libraries: Matplotlib , Seaborn,Plotly
- DATABASE:MYSQL,ORACLE DB,BIG QUERY
CERTFICATATION
Microsoft Certified: Azure Data Fundamentals
- knowledge of core data concepts and related Microsoft Azure data services.
- Learnt 20+ services used in Azure Platform
Programming in Python NPTEL • 2018
- Learnt the basics and intermediate of Python
Timeline
Associate Engineer
Cognizant
05.2020 - Current
Bachelor of Electronics And Communication Engineering - BE
St. Joseph's Institute of Technology And Sciences
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