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Hi, I’m Gagandeep Singh, a Senior QA Engineer and SDET with 11+ years of experience delivering high-quality web-based data applications and enterprise systems. I specialize in driving quality across UI, API, and data layers, designing robust test plans, building scalable automation frameworks, and collaborating closely with developers and product managers in Agile environments. I excel at deep SQL validation, regression and performance testing, and providing actionable feedback to improve product quality. I’m adept at balancing thorough manual testing with automation, and I continuously optimize test processes using AI-assisted tooling to accelerate scripting and reduce cycle times.…Hi, I’m Gagandeep Singh, a Senior QA Engineer and SDET with 11+ years of experience delivering high-quality web-based data applications and enterprise systems. I specialize in driving quality across UI, API, and data layers, designing robust test plans, building scalable automation frameworks, and collaborating closely with developers and product managers in Agile environments. I excel at deep SQL validation, regression and performance testing, and providing actionable feedback to improve product quality. I’m adept at balancing thorough manual testing with automation, and I continuously optimize test processes using AI-assisted tooling to accelerate scripting and reduce cycle times.

Gagandeep Singh

QA Engineer, Web Developer, Front-End Developer, +2

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Hi, I’m Gagandeep Singh, a Senior QA Engineer and SDET with 11+ years of experience delivering high-quality web-based data applications and enterprise systems. I specialize in driving quality across UI, API, and data layers, designing robust test plans, building scalable automation frameworks, and collaborating closely with developers and product managers in Agile environments. I excel at deep SQL validation, regression and performance testing, and providing actionable feedback to improve product quality. I’m adept at balancing thorough manual testing with automation, and I continuously optimize test processes using AI-assisted tooling to accelerate scripting and reduce cycle times.…Hi, I’m Gagandeep Singh, a Senior QA Engineer and SDET with 11+ years of experience delivering high-quality web-based data applications and enterprise systems. I specialize in driving quality across UI, API, and data layers, designing robust test plans, building scalable automation frameworks, and collaborating closely with developers and product managers in Agile environments. I excel at deep SQL validation, regression and performance testing, and providing actionable feedback to improve product quality. I’m adept at balancing thorough manual testing with automation, and I continuously optimize test processes using AI-assisted tooling to accelerate scripting and reduce cycle times.

Available to hire

Hi, I’m Gagandeep Singh, a Senior QA Engineer and SDET with 11+ years of experience delivering high-quality web-based data applications and enterprise systems. I specialize in driving quality across UI, API, and data layers, designing robust test plans, building scalable automation frameworks, and collaborating closely with developers and product managers in Agile environments.

I excel at deep SQL validation, regression and performance testing, and providing actionable feedback to improve product quality. I’m adept at balancing thorough manual testing with automation, and I continuously optimize test processes using AI-assisted tooling to accelerate scripting and reduce cycle times.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

SDET Lead / Senior QA Engineer at ATOS (Maven Wave)

September 1, 2021 - April 1, 2026

Designed, developed, and executed comprehensive test plans and test cases for Porter Airlines across UI, API, and data layers to ensure quality and regulatory compliance. Maintained and enhanced automated test frameworks using Selenium/Java and Playwright, reducing UI test execution time by approximately 40%. Collaborated with developers and product managers in a fast-paced Agile environment to clarify requirements, define acceptance criteria, and resolve issues early in the SDLC. Conducted regression, integration, and performance testing (using JMeter) to identify backend bottlenecks, analyzed results, and provided actionable feedback to improve product quality. Documented defects in Jira and X-Ray, prioritizing issues across multiple releases. Performed deep validation of real-time message flow and data pipelines for healthcare data transformations (GCP, Apache Kafka). Enhanced team productivity by leveraging AI-assisted development tools (GitHub Copilot, Claude) to accelerate automa

Senior Software Test Engineer at Fidelity Information Services (FIS)

December 1, 2018 - September 1, 2021

Performed manual and automated testing to validate new features and secure workflows for a complex financial card production system. Leveraged SQL and relational databases (Oracle, MySQL) to design complex queries and conduct backend data integrity testing. Maintained scalable automated test scripts using Java, Cucumber, and TestNG with a Page Object Model, improving maintainability and reducing script maintenance time by ~20%. Tracked defects with Jira and TestRail, ensuring timely resolution of critical issues. Executed automated regression and integration tests via nightly Jenkins CI/CD runs, and provided actionable reporting on defect leakage. Ensured security standards through static analysis testing using Veracode.

Software Engineer at Tech Mahindra

June 1, 2014 - December 1, 2018

Conducted extensive manual and exploratory testing for system integration and backend logic validation of complex web-based data monitoring dashboards. Verified large telecom datasets across ETL stages to ensure 99.9% network reliability. Documented and tracked defects in Jira, coordinating resolution with developers and analysts. Built baseline automated test scripts using Selenium WebDriver and Java to validate UI features and system reliability.