ATHULYA NARAYANAN
Data Engineer | Databricks | Azure | AWS | Databricks | PySpark | SQL | SSIS |
Kochi,KL
Summary
Data Engineer with 12+ years of experience in Data Warehousing, ETL Development, SQL Server, AWS Databricks, Azure, and PySpark. Proven expertise in designing scalable data pipelines, cloud-based data lake solutions, data integration, performance optimization, and analytics platforms. Experienced in utility, retail, healthcare, and insurance domains. Strong stakeholder management, production support, and technical leadership skills.
Overview
2
2
Certifications
13
13
years of professional experience
Work History
AWS Data Engineer
Tata Consultancy Services
04.2025 - Current
- Developed scalable ETL pipelines using AWS Databricks and PySpark.
- Built ingestion frameworks for structured and semi-structured utility data.
- Integrated AWS S3 bucket and RDS Database.
- Optimized Spark workloads using partitioning, broadcast joins, and shuffle reduction.
- Enabled reporting, analytics, and operational monitoring for utility datasets.
- Client: Xcel Energy (Utility Domain)
ETL Developer (Onsite USA)
Tata Consultancy Services
06.2022 - 04.2025
- Developed and supported enterprise ETL solutions using SQL Server, SSIS, and Azure Databricks.
- Designed database objects, stored procedures, functions, indexes, and views.
- Built and optimized data integration pipelines across on-premises and cloud platforms.
- Collaborated with business users on requirements, root cause analysis, and enhancements.
- Improved data reliability and reduced processing time through performance tuning.
- Client: Duluth Holdings (Retail Domain)
Technical Lead
Tata Consultancy Services
01.2019 - 05.2022
- Led ETL application development, enhancements, and production support.
- Designed data models and database solutions aligned with business requirements.
- Developed SSRS reporting solutions and automated operational processes.
- Mentored team members and coordinated offshore development activities.
- Led a team in developing innovative software solutions, enhancing project delivery efficiency and client satisfaction.
- Implemented Agile methodologies, facilitating cross-functional collaboration and improving project timelines for critical initiatives.
- Designed and optimized system architectures, significantly improving performance and scalability of applications.
- Mentored junior developers, fostering a culture of knowledge sharing and improving overall team capability and productivity.
Associate
Cognizant
08.2016 - 01.2019
- Developed ETL packages and reporting solutions.
- Performed requirement analysis, schema design, data quality validation, and SQL development.
- Delivered production support and root-cause analysis for critical issues.
- Client: MetLife
Software Engineer
UST Global
06.2013 - 05.2016
- Developed ETL workflows, reporting solutions, and automated data validation processes.
- Performed source system analysis, data modeling, testing, and quality assurance.
- Client: Anthem Healthcare
Education
Bachelor of Technology - Computer Science
University of Calicut
Diploma - Computer Engineering
State Board of Technical Education
Skills
Databricks (Azure Databricks, AWS Databricks), Delta Lake, PySpark, Spark SQL
Azure Data Lake Storage (ADLS), Azure SQL Database, AWS S3
SQL Server, T-SQL, Stored Procedures, Performance Tuning
ETL/ELT Development, Data Warehousing, Data Modeling
Airflow, Azure DevOps, GitLab, CI/CD
SSIS, SSRS, Data Quality, Data Governance
PySpark
ETL development
SQL Server
SSIS
Data Lake Integration
Database design
Data validation
Performance tuning
AWS Databricks
ETL pipeline development
Accomplishments
- 12+ years delivering enterprise-scale data and analytics solutions.
- Experience across Utility, Retail, Insurance, and Healthcare domains.
- Optimized Spark ETL pipelines, reducing execution times and improving scalability.
- Extensive experience collaborating with business stakeholders and global teams.
- Valid H1B visa with remaining transferability.
Certification
Databricks Certified Data Analyst Associate
Timeline
AWS Data Engineer
Tata Consultancy Services
04.2025 - Current
ETL Developer (Onsite USA)
Tata Consultancy Services
06.2022 - 04.2025
Technical Lead
Tata Consultancy Services
01.2019 - 05.2022
Associate
Cognizant
08.2016 - 01.2019
Software Engineer
UST Global
06.2013 - 05.2016
Diploma - Computer Engineering
State Board of Technical Education
Bachelor of Technology - Computer Science
University of Calicut