Sai Kumar Ratakonda
Austin
Summary
Data Engineer and Data Conversion Specialist with proven expertise in developing ETL pipelines and executing data migrations. Proficient in SQL, Python, SSIS, BIML, and cloud platforms, ensuring robust data governance. Capable of transforming complex business requirements into efficient data workflows while maintaining data accuracy and compliance. Extensive experience in financial services and hospitality sectors, delivering scalable analytics solutions.
Overview
6
6
years of professional experience
Work History
Data Conversion Developer
Vscore Inc
09.2025 - 10.2025
- Designed and maintained over 100 robust data conversion scripts using C#, SSIS, BIML, and SQL Server to ensure accurate migrations across modernization cycles.
- Automated data extraction, transformation, and loading processes, significantly reducing manual effort.
- Developed and optimized complex SQL/T-SQL/PL-SQL scripts, including stored procedures and triggers for efficient data handling.
- Extracted data from various systems (Adabas/Natural, XML, JSON, CSV) into SQL Server in compliance with business rules.
- Authored comprehensive source-to-target mapping documents to establish traceable data lineage for compliance.
- Conducted data validation and regression testing across multiple conversion cycles to verify accuracy.
- Collaborated with business stakeholders to translate requirements into actionable ETL workflows aligned with modernization goals.
- Monitored production pipelines, triaged incidents, and implemented long-term solutions to enhance reliability.
Data Engineer
Hilton
01.2022 - 09.2022
- Developed and maintained scalable ETL pipelines for processing high-volume structured and unstructured data.
- Built analytical datasets and marts to support reporting, forecasting, and machine learning projects.
- Created custom SQL scripts and Python workflows to automate data transformations, enhancing operational efficiency.
- Ensured accuracy and consistency through data validation, profiling, and quality assurance processes.
- Designed data models to optimize storage and improve query performance for faster business insights.
- Collaborated with analysts and business teams to translate requirements into actionable data solutions.
- Implemented data governance standards, documenting metadata, lineage, and ensuring compliance with privacy regulations.
- Monitored system performance to identify bottlenecks, implementing improvements that reduced processing latency.
Data Engineer / ETL Developer
Wells Fargo
08.2019 - 12.2020
- Developed and maintained end-to-end ETL pipelines for data extraction, transformation, and loading from banking systems, ensuring timely delivery for analytics.
- Built and optimized SQL queries, stored procedures, views, and database scripts to enhance data processing efficiency.
- Performed data profiling, validation, and cleansing to uphold data accuracy and integrity across diverse systems.
- Automated routine ETL tasks and data reconciliation processes, reducing manual effort and minimizing errors by 25-30%.
- Assisted in migration of legacy data systems to modern SQL platforms, ensuring integration and traceability of historical records.
- Collaborated with business and IT teams to gather requirements, design solutions, and deliver insights through dashboards and reports.
- Documented data flows, mappings, and workflows to support knowledge transfer, audit readiness, and compliance.
- Troubleshot data discrepancies for end-users while providing guidance on reporting tools and data access procedures.
Education
Master's Degree - Computer Science
Texas A&M University
Kingsville, TX05-2022
Skills
- ETL and ELT pipelines
- Data migration and conversion
- SQL Server, Oracle, PostgreSQL
- Python programming
- T-SQL and PL/SQL
- Data warehouses and lakes
- SSIS and BIML
- C# development
- Cloud platforms: AWS, Azure, GCP
- Big data tools: Hadoop, Spark, Databricks
- Data governance and quality
- Workflow automation
- Scripting languages
- Performance testing and regression
- Data visualization and reporting tools
Timeline
Data Conversion Developer
Vscore Inc
09.2025 - 10.2025
Data Engineer
Hilton
01.2022 - 09.2022
Data Engineer / ETL Developer
Wells Fargo
08.2019 - 12.2020
Master's Degree - Computer Science
Texas A&M University