Rengi P Kurian
Manchester,UK
Summary
Detail-oriented Data Analyst with 14+ years of experience in ETL validation, data warehousing, and analytics platforms. Highly skilled in SQL, backend data testing, and end-to-end data pipeline validation, with hands-on exposure to Microsoft Fabric and the Medallion Architecture (Bronze–Silver–Gold).
Proven expertise in ETL testing, data quality assurance, and enterprise data warehouse systems, with a strong background in regression, integration, and API testing. Experienced in defect management and root cause analysis, consistently ensuring data integrity, system reliability, and high-quality delivery within Agile environments.
Overview
16
16
years of professional experience
1
1
Certification
Work history
System Tester
MDU
London
2019.09 - Current
- Performed end-to-end system, integration, and regression testing across analytics and reporting platforms.
- Performed end-to-end data validation across Bronze, Silver, and Gold layers (Medallion Architecture), identifying data inconsistencies and ensuring high data quality in analytics outputs.
- Executed backend data validation using SQL Server (SSMS) to ensure accuracy and consistency.
- Validated ETL processes and data transformations, ensuring integrity across source, staging, and reporting layers.
- Designed and executed test cases and test scenarios, improving defect detection and system reliability.
- Identified, analysed, and reported defects, data discrepancies, and root causes using tools such as Azure DevOps.
- Collaborated with developers, data engineers, and business stakeholders in Agile Scrum environments.
- Improved testing processes by refining test strategies, enhancing documentation, and supporting faster issue resolution.
Senior BI Tester
Sonata Software
India
2013.07 - 2019.04
- Performed ETL and backend data validation using SQL Server, SSIS, and Oracle SQL Developer.
- Tested data pipelines using Informatica Cloud, ensuring accuracy across large-scale data warehouse systems.
- Validated data across AWS (S3, DynamoDB) environments, supporting cloud-based data processing.
- Designed and executed functional, integration, and data test cases for high-volume datasets.
- Collaborated within Agile Scrum teams to support sprint delivery and improve testing efficiency.
Software Quality Assurance Engineer
Xerox (ACS)
India
2010.09 - 2013.06
- Worked on MSBI stack (SSIS, SSRS, SSAS).
- Validated ETL transformations and reporting systems.
Education
Bachelor - Electronics & Communication Engineering
Mahatma Gandhi University
IndiaSkills
Data & ETL Testing
- Data Validation in ETL transformation
- Medallion Architecture (Bronze–Silver–Gold) Validation
- Data Warehousing, Data Modelling
Databases & Querying
- SQL Server (SSMS), T-SQL
Microsoft & Data Platforms
- Microsoft Fabric, SQL Server Integration Services, SQL Server Management Studio 2022, Microsoft Visual Studio 2020
Testing & QA
- Functional, Integration & Regression Testing
- Defect Management (Azure DevOps)
- API Testing
Analysis & Delivery
- Data Analysis, Root Cause Analysis
- Test Case Design & Execution
- Agile / Scrum Methodologies
Certification
ITIL 4 Foundation
Accomplishments
2024/2026: Recognition Award
2025: Team Of The Year Award
Timeline
System Tester
MDU
2019.09 - Current
Senior BI Tester
Sonata Software
2013.07 - 2019.04
Software Quality Assurance Engineer
Xerox (ACS)
2010.09 - 2013.06
Bachelor - Electronics & Communication Engineering
Mahatma Gandhi University