Mathan raja
@mathanraja
Senior Data Engineer specializing in Python, Spark, Hive and ETL optimization.
IndiaWhat I'm looking for
I am a Senior Data Engineer with 13+ years in IT, blending 9+ years of SQL/PL/SQL and shell scripting with 6+ years building Big Data ETL pipelines using Python, Spark and Hive. I design, develop and optimize end-to-end data workflows for analytics and reporting.
I have delivered cross-domain projects—healthcare, fintech and shipping—migrating legacy ETL to Spark/Hive, tuning Spark and SQL for performance, and automating ingestion and validation across SQL Server, Oracle and HDFS. I regularly create reusable frameworks, PL/SQL packages, shell automation, and Spark jobs deployed on EMR clusters.
I am dependable in production support, data reconciliation and large data handling, with strong problem-solving, communication and collaboration skills that enable me to independently handle design, development and support responsibilities.
Experience
Work history, roles, and key accomplishments
Senior Data Engineer
Ascendion Engineering Pvt Ltd
Nov 2024 - Present (1 year 1 month)
Designed and developed modernized ETL pipelines using Python, Spark, and Hive for hospital and fintech clients, improving performance and enabling reliable analytics; tuned Spark jobs and supported production migrations.
Senior Data Engineer
LogiTransTech India Pvt Ltd
Jan 2015 - Nov 2024 (9 years 10 months)
Led migration of legacy ETL to Spark/Hive, developed PL/SQL procedures and Python-Spark pipelines, and optimized data processing for shipping management systems and EDW→ADM mappings.
Programmer Analyst
Information Dynamics India Pvt Ltd
Dec 2011 - Dec 2015 (4 years)
Developed and maintained Oracle PL/SQL objects, automated data loads with shell scripts and UTL_FILE, and performed SQL tuning and production support for accounting systems.
Education
Degrees, certifications, and relevant coursework
Prathyusha Institute of Technology
Bachelor of Technology, Engineering
2008 - 2011
Grade: 69%
Completed undergraduate studies at Prathyusha Institute of Technology with a focus on engineering coursework and a 69% final percentage.
Tamilnadu Polytechnic College, Madurai
Diploma, Polytechnic
2005 - 2008
Grade: 86%
Completed diploma studies at Tamilnadu Polytechnic College, Madurai with an 86% final percentage.
Availability
Location
IndiaAuthorized to work in
Job categories
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