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Mahesh Kumar Thiagarajan

@maheshkumarthiagaraj

Message

I’m a QA Automation Engineer building scalable test frameworks across web, mobile, APIs, and desktop.

United States

Message

What I'm looking for

I’m looking for a QA automation role where I can own scalable frameworks, deepen API/UI/ETL coverage, and work in Agile teams. I want to modernize pipelines with CI-CD and smart test generation to ship reliably.

I’m a Full Stack QA Automation Engineer with 18 years in IT, combining manual and automation testing across Desktop, Mobile, Web, iPad, Flex UI, ETL, and API/microservices testing. I’ve led teams and delivered high-quality outcomes in fast-paced Agile environments.

I design and implement scalable automation frameworks from scratch, strengthening coverage with Page Object Model, Data Driven, Keyword driven, and Hybrid approaches. I’ve developed automation using KatalonStudio, Selenium, WebdriverIO, AccelQ, and Cypress, and I validate end-to-end functionality with strong BDD practices.

I build reliable pipelines for quality and speed—using Jenkins, Concourse, GitLab/GitHub, Maven, and CI/CD to run tests automatically. I also use AI-driven Azure DevOps extensions to generate comprehensive test cases from user stories, accelerating test preparation.

My testing strengths include cross-browser testing (Mozilla Firefox, Google Chrome, Safari, Edge, IE), API testing with JMeter/Postman/Rest Assured, and UI automation with Selenium (including XPath and CSS locators). I’ve also done ETL testing by validating data transformations end-to-end and ensuring backend integrity with SQL, troubleshooting issues through root-cause analysis.

Experience

Work history, roles, and key accomplishments

Current

QA Automation Engineer

Current

CBRE

Jan 2022 - Present (4 years 5 months)

Develop and maintain automated test scripts using AccelQ, Katalon Studio, Selenium WebDriver, WebdriverIO, and Cypress, validating end-to-end functionality of key project management applications. Improved test-case preparation by leveraging AI-driven Azure DevOps extensions and supported CI/CD quality checks with tools like GitLab, Jenkins, and BDD/Gherkin.

Katalon Studio Selenium Webdriver Cypress WebdriverIO JMeter REST API Testing Azure DevOps CI CD

Senior Testing Analyst

Cognizant Technology Solutions US Corp

Jun 2014 - Dec 2021 (7 years 6 months)

Created and maintained automation frameworks and scripts using Katalon Studio and Selenium WebDriver, and led QA efforts for frontend testing and microservices testing with JMeter. Designed automation frameworks from scratch (Page Object Model, data-driven, keyword-driven, and hybrid) and executed cross-browser and Sauce Labs testing within Agile/Scrum processes.

Selenium Webdriver Katalon Studio Cypress JMeter Java JavaScript Maven Page Object Model

Test Analyst

Infosys Technologies Limited

Jun 2008 - Jun 2014 (6 years)

Performed ETL testing for enterprise data warehouse initiatives, validating data transformations across source systems and intermediate files using SQL and database checks. Managed quality activities including smoke/regression/system/UAT, root-cause analysis, test plan/test data creation, and contributed to retail and banking application testing (including Flex UI reporting).