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Charan Gnanappan

@charangnanappan

Data Engineer at SAI Pvt Ltd who developed Databricks ingestion pipelines and cut financial reporting turnaround by 40%.

What I'm looking for

I'm seeking a Data Engineer Internship to gain hands-on experience building data pipelines, working with cloud technologies, and developing scalable data solutions.

At SAI Pvt Ltd, I developed incremental data ingestion pipelines with Databricks Auto Loader for ERP, CRM, and REST API data. I also transformed data with PySpark and SQL across bronze, silver, and gold layers.

I cleaned and validated data, reconciled invoice payments, and optimized SQL queries and Spark transformations, contributing to a 40% reduction in financial reporting turnaround. I monitored Databricks Workflows and troubleshot ingestion, schema, and processing issues.

As a Quality Analyst at Teleperformance, I analyze operational data, monitor accuracy, and investigate discrepancies. I prepare quality reports and track performance indicators to support operational decisions and process improvement.

Experience

Work history, roles, and key accomplishments

TE

Current

Quality Analyst

Current

Teleperformance

Feb 2025 - Present (1 year 9 months)

Analysed operational data to identify quality issues and performance trends. Monitored data accuracy, performed quality checks, and prepared quality reports to support decision-making.

Data Analysis Quality Assurance Data Validation Root Cause Analysis Reporting KPI Tracking Documentation

SL

Data Engineer

SAI Pvt Ltd

Jan 2022 - Dec 2023 (1 year 11 months)

Developed incremental data ingestion pipelines using Databricks Auto Loader and built PySpark/SQL transformations across bronze, silver, and gold layers. Optimized queries and transformations, reducing financial reporting turnaround by 40%.

Databricks PySpark SQL ETL Data Ingestion Data Validation Data Cleaning Data Reconciliation Azure Data Factory Delta Lake Medallion Architecture REST APIs Databricks Workflows Troubleshooting

Education

Degrees, certifications, and relevant coursework

DS

Dublin Business School

Master of Science, Data Analytics

2024 - 2025

Master of Science in Data Analytics from Dublin Business School, completed in 2025.

PT

Panimalar Institute of Technology

Bachelor of Technology, Information Technology

2019 - 2023

Bachelor of Technology in Information Technology from Panimalar Institute of Technology, completed in 2023.

MI

Microsoft

Microsoft Certified: Azure Databricks Data Engineer Associate (DP-750), Data Engineering

Microsoft Certified: Azure Databricks Data Engineer Associate (DP-750).

MI

Microsoft

Microsoft Certified: Fabric Data Engineer Associate (DP-700), Data Engineering

Microsoft Certified: Fabric Data Engineer Associate (DP-700).

AS

Amazon Web Services

AWS Certified Cloud Practitioner (CLF-C02), Cloud Computing

AWS Certified Cloud Practitioner (CLF-C02).

IB

IBM

Python for Data Science, AI and Development, Data Science

Python for Data Science, AI and Development certification.

Tech stack

Software and tools used professionally

Microsoft Azure

PySpark

Python

Azure SQL Database

Git

SQL

Delta Lake

Power BI

REST APIs

Availability

Looking for a job

Location

Ireland

Authorized to work in

Salary expectations

40k+ EUR

Social media

Job categories

Skills

Data Engineering ETL ELT Data Ingestion Data Pipelines Data Validation Data Quality Data Cleaning data transformation Data Reconciliation Data Warehouse Data Modeling Incremental Processing Workflow Orchestration Pipeline Monitoring Root Cause Analysis

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