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Hari vignesh UserHU
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Hari vignesh User

@harivigneshuser

Data engineer specializing in scalable ETL, Spark, Airflow, and AWS.

India
Message

What I'm looking for

I seek a data engineering role where I can build scalable ETL pipelines, optimize Spark workloads on cloud platforms, collaborate with stakeholders, and grow technical ownership in a data-driven, compliant environment.

I am a Data Engineer with over three years of hands-on experience building scalable ETL pipelines and optimizing large-scale data processing using Apache Spark, Airflow, and AWS.

I design and implement reliable data workflows on AWS EMR and S3, applying Spark DataFrame transformations, RDDs, and Hive schemas to process structured, semi-structured, and unstructured data.

I focus on performance tuning — partitioning, caching, and resource tuning — and have reduced EMR costs by 20% through optimizations while ensuring data quality and compliance for healthcare workloads.

I collaborate closely with business stakeholders to translate domain logic into production DAGs, automate batch workflows, and maintain accurate master data, bringing an agile, quality-driven approach to data engineering projects.

Experience

Work history, roles, and key accomplishments

CL
Current

Data Engineer

Claritrics India Private Limited

Jan 2023 - Present (3 years 2 months)

Built and optimized scalable ETL pipelines on AWS EMR using PySpark and Airflow, improving processing performance and reducing EMR costs by 20% while ensuring healthcare data quality and HIPAA-aligned traceability.

CL

Intern - Data Engineer

Claritrics India Private Limited

Oct 2022 - Dec 2023 (1 year 2 months)

Implemented Spark applications and Hive schemas to load and transform large semi-structured datasets (JSON, Avro, XML), and optimized Hive partitioning and bucketing for efficient access.

Education

Degrees, certifications, and relevant coursework

PT

PSNA College of Engineering and Technology

Bachelor of Engineering, Electronics and Communication Engineering

2016 - 2020

Grade: 6.0 CGPA

Bachelor of Engineering in Electronics and Communication Engineering with a 6.0 CGPA completed between 2016 and 2020.

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Hari vignesh User - Data Engineer - Claritrics India Private Limited | Himalayas