Harish Aravindh Mahendran
@harisharavindhmahend
Data Engineer specializing in cloud ETL, PySpark, and Python-driven data platform modernization.
IndiaWhat I'm looking for
I am a Data Engineer with five years of experience building and optimizing cloud-based data platforms and ETL pipelines for telecom and banking domains. I focus on designing scalable PySpark and Python data workflows on Databricks and AWS to process millions of records reliably.
I have led SAS-to-Python migrations, implemented production-grade ETL using Databricks and AWS Glue, and created backward-compatible Redshift views to ensure seamless legacy migrations. My work emphasizes performance optimization through partitioning, caching, efficient formats, and memory-efficient Python techniques.
I build API-driven ingestion, orchestration with Lambda and Airflow, automated monitoring, and GenAI proofs-of-concept using LLM frameworks for internal automation and experimentation. I also develop time-series forecasting and anomaly-detection models to deliver analytical insights.
I collaborate closely with stakeholders to translate business requirements into production-ready solutions, and I have been recognized for high-impact client delivery and performance in previous roles.
Experience
Work history, roles, and key accomplishments
Designed and owned PySpark ETL pipelines on Databricks and AWS Glue to process large-scale telecom datasets, optimized jobs to reduce compute cost, and built GenAI PoCs and time-series models to improve data-driven insights.
Designed and owned PySpark ETL pipelines on Databricks and AWS Glue to process large-scale telecom datasets, optimized jobs to reduce compute cost, and built GenAI PoCs and time-series models to improve data-driven insights.
Worked on SAS-to-Python migration and optimized Python data-processing frameworks for major North American banking clients, achieving parity with SAS Grid performance for production workloads of millions of records.
Worked on SAS-to-Python migration and optimized Python data-processing frameworks for major North American banking clients, achieving parity with SAS Grid performance for production workloads of millions of records.
Education
Degrees, certifications, and relevant coursework
Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College
Bachelor of Engineering, Electronics and Communication Engineering
2016 - 2020
Grade: 8.04/10
Completed a Bachelor of Engineering in Electronics and Communication Engineering with a 8.04/10 GPA, covering core electronics, communications, and engineering fundamentals.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Portfolio
profile.hadev.spaceSalary expectations
Social media
Job categories
Skills
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