QA Engineer: ETL, Data Validation, Automation

SAHAJA THOTA

***************@*****.*** +1-864-***-**** Central, SC https://www.linkedin.com/in/sahaja-thota/ PROFESSIONAL SUMMARY

Quality Assurance Engineer with 3+ years of experience specializing in test automation, SQL-driven data validation, ETL testing, and backend quality assurance for enterprise-scale applications. Proven expertise across the Software Testing Life Cycle (STLC) within Agile/Scrum environments, with a strong focus on automated UI, API, and regression testing to ensure data integrity, accurate source-to-target mappings, transformations, and end-to-end workflow validation across complex systems. Experienced in designing, executing, and maintaining automated test suites, troubleshooting application and data issues using SQL, and collaborating closely with cross-functional teams to deliver reliable, scalable, and high-quality user-focused solutions. WORK EXPERIENCE

Sanizer IT Services USA – Data Engineer (ETL Test Analyst) Remote Jul 2025 – Present

● Execute manual and automated ETL test cases across employee service portals using SQL queries and automation scripts, validating data accuracy, business rules, and transformations, improving data reliability by ~30% across downstream reports.

● Perform extensive source-to-target data validation on high-volume datasets using complex SQL joins, aggregations, and filters, reducing reporting inconsistencies by ~25%.

● Analyze application behavior and data pipelines to identify discrepancies, logging high-quality defects in JIRA with clear reproduction steps, SQL evidence, and impact analysis, accelerating defect resolution cycles.

● Collaborate with developers, product owners, team in an Agile/Scrum environment, contributing QA insights during sprint planning, reviews, and defect triage.

● Reduce manual ETL testing effort by ~35% by automating repeatable SQL validation workflows and integrating test execution into CI/CD pipelines. Keel Works Foundation – Quality Assurance Engineer Remote July 2024 – June 2025

● Designed and executed functional, regression, integration, and UAT test cases for KeelHub web applications, performing UI (DOM), cross-browser, and responsive testing using HTML, CSS, and JavaScript inspection, improving overall test coverage by ~30%.

● Validated backend data and application workflows using SQL queries and API responses to ensure data consistency across systems.

● Documented, tracked defects in JIRA, providing clear functional impact, expected vs. actual results, and supporting SQL/API evidence, reducing defect leakage.

● Developed and maintained Cypress-based automated regression test suites and performed API testing using Postman, validating request/response payloads, status codes, and data accuracy; integrated tests into CI/CD pipelines, reducing repetitive manual testing by ~20%.

● Actively participated in Agile ceremonies, providing risk-based testing input and test prioritization aligned with sprint objectives. Infosys Limited – Test Engineer Pocharam, India November 2020 – July 2022

● Conducted functional, regression, and integration testing for Telstra web and mobile (iOS & Android) applications, validating UI, API, and backend workflows using Selenium, Appium, Postman, and SQL, increasing overall test coverage by ~30%.

● Performed SQL-based backend and ETL data validation, ensuring correctness of source-to-target mappings and business logic across databases.

● Conducted cross-browser and cross-device compatibility testing to ensure consistent user experience across platforms.

● Supported senior QA engineers in maintaining automation frameworks and executing automated test suites within CI/CD pipelines (Jenkins), reducing repetitive manual testing effort by ~20%.

● Collaborated with clients, developers, product owners, and business analysts in Agile/Scrum environments to analyze requirements and log clear, actionable defects in JIRA and Confluence, contributing to reduced production defects. Infosys Limited – Test Intern Mysore, India February 2020 – August 2020

● Created and executed manual test cases for web applications, validating UI workflows and business logic; logged defects in tracking tools with clear steps, improving developer turnaround time by ~25%

● Validated REST APIs using Postman and assisted in basic automation scripts (JavaScript), achieving ~60% test coverage for critical endpoints. Dhunis Technologies Pvt Ltd – Test Intern Vizag, India May 2018 – August 2018

● Automated 35+REST API test scenarios using Postman, implementing data-driven validations to increase test coverage and reliability of the association’s services

● Executed 80+ functional UI test cases for the platform, logging and tracking defects in Jira, which supported timely resolution of critical and high-priority issues RESEARCH PROJECTS

Would You Rather – Gamified User Study Clemson University, Aug 2024

● Conducted manual, SQL data validation, and API testing for a web/mobile responsive prototype (HTML,CSS, Javascript, JQuery), implementing data validation scripts to ensure accurate participant metrics and insights, contributing to ~20% improvement in user engagement and interface design effectiveness Consumer-to-Consumer E-commerce Website Clemson University, Aug 2023

● Performed web responsiveness testing, validating notification flows and checkout workflows across browsers, reducing user-facing errors by ~25%. Instate/Outstate Transfinder Mobile Application Clemson University, Jan 2022

● Tested backend SQL workflows in mobile interfaces, automating validation of real-time transit data, improving prediction accuracy and accessibility for end users SKILL SET

● Testing Types & Agile Practices: Manual, Automation(Selenium, cypress)Testing, Functional, Regression, Integration, UI Testing, UAT, API Testing (postman), ETL/Data Validation,, Software Testing Life Cycle (STLC), Risk-Based Testing, Defect Triage

● Automation Frameworks & Tools: Cypress (UI and Regression Automation), Selenium WebDriver (DOM), Appium, Page Object Model (POM), Playwright,Data-Driven Testing, Modular and Reusable Test Design, CI/CD-Integrated Test Execution, Postman, Newman.

● Test Automation Concepts: Requirements Analysis, Test Case Identification, Design and Documentation, Mapping to Requirement, Automation Analysis, Regression Suite Design, Reusable Test Component Development, Automated Test Execution, Test Result Analysis and Reporting, Regression Suite Maintenance

● Programming & Scripting: HTML, CSS, JavaScript (DOM Inspection, UI Validation, Cross-Browser), Java, SQL, Python (Basic), SQL, Bash/Shell.

● Defect & Test Management: JIRA, Test Case Documentation, Defect Tracking and Reporting, Cross-Functional Team Collaboration

● Data & Backend: SQL (Advanced): Source-to-Target Validation, Joins, Subqueries, Aggregations, Data Reconciliation, ETL & Data Warehouse Testing

● Professional Skills: Technical Decision-Making, Problem Solving & Root Cause Analysis, Logical & Analytical Thinking, Cross-Functional Team Collaboration EDUCATION

Clemson University, Clemson, SC M.S. in Computer Science & Engineering August 2022 – May 2024 Koneru Lakshmaiah Education Foundation, Andhra Pradesh, India B.Tech in Computer Science & Engineering July 2016 – May 2020 CERTIFICATIONS

AWS Certified Solutions Architect – Associate. (Issued by Amazon Web Services Training and Certification)April 2025 – April 2028 Postman API Fundamentals Student Expert (Issued by Postman) February 2025 – March 2027

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