Data Engineer

Building scalable data pipelines and automation solutions

4+ years of experience designing ETL pipelines, optimizing cloud data warehouses, and delivering big data solutions that reduce processing time and improve scalability.

Navaneethan E S
Python Python
SQL SQL
PySpark PySpark
Snowflake Snowflake
Databricks Databricks
Azure Azure
AWS AWS
Kafka Kafka
Hadoop Hadoop
Git Git
Docker Docker
Oracle Oracle
Python Python
SQL SQL
PySpark PySpark
Snowflake Snowflake
Databricks Databricks
Azure Azure
AWS AWS
Kafka Kafka
Hadoop Hadoop
Git Git
Docker Docker
Oracle Oracle

About

Results-driven Data Engineer with expertise in designing scalable ETL pipelines, optimizing cloud data warehouses, and delivering big data solutions. Hands-on with Matillion, Databricks, SSIS, Snowflake, PySpark, Azure, and Power BI to automate data workflows and improve reporting accuracy.

Proven track record of reducing ETL runtime by 30% and improving scalability for large-scale enterprise datasets across global operations.

Experience

Data Engineer

Cognizant Technology Solutions
July 2021 - Present

Leading Global Automotive & Manufacturing Enterprise (Supply Chain Division)

  • Designed and deployed 15+ scalable ETL/ELT pipelines using Snowflake, Matillion, and SSIS — reducing processing time by 30% and improving scalability for enterprise datasets
  • Developed the PFEP KPI dashboard in Databricks, Power BI, and PySpark — reducing manual tracking by 25+ hours/month and improving cross-team visibility
  • Built and delivered 10+ executive dashboards in Power BI — improving leadership decision-making and defect tracking
  • Optimized a Python-based classification algorithm, reducing execution time from 2 hours to under 5 minutes
  • Integrated heterogeneous data sources (Oracle, SQL Server, Snowflake, Azure Blob) into centralized reporting models, improving reporting accuracy by 15%

Key Projects

Global Manufacturing KPI Dashboard

Built an executive-level Power BI dashboard to track global operational metrics including quality, productivity, and delivery. Achieved SLA-driven refresh times of under 30 minutes with 95%+ data accuracy across multiple global plants.

Power BI Snowflake Matillion Databricks

PFEP Dashboard

Built a centralized reporting platform providing complete visibility into parts information across supplier, packaging, and warehouse operations. Eliminated manual reporting, saving 25+ analyst hours/month.

Databricks Power BI PySpark SQL

VPI Tariff Estimation & Simulation

Automated ingestion of program data from SharePoint into Databricks workflows. Designed and optimized Python algorithms to handle hierarchical relationships, reducing runtime from 2 hours to under 5 minutes.

Databricks Python PowerApps Power BI

Core Skills

Programming & Processing

Python (Pandas, NumPy), SQL, PySpark, DAX

Data Engineering & ETL/ELT

Matillion, Databricks, SSIS, Snowflake

Cloud & Infrastructure

Azure (Blob, Synapse, Data Lake), AWS (S3), Hive

Big Data & Streaming

Apache Spark, Apache Kafka, Hadoop ecosystem

Data Modeling & Warehousing

Star/Snowflake schema, Normalization, Performance Tuning

Visualization & Analytics

Power BI, Excel

Certifications

  • Snowflake Core Pro Certified
  • Microsoft Azure Data Fundamentals (DP-900)

Get in touch

Interested in discussing data engineering, automation, or collaboration opportunities?