Karthik Rengasamy
Chennai
Summary
Results-driven Test Automation Engineer with six years of experience specializing in Selenium, Java, TestNG, API testing, and automation framework development. Adept at designing, developing, and maintaining automation test frameworks for web and mobile applications. Strong expertise in Agile methodologies, performance testing, and test strategy formulation. Proven ability to collaborate cross-functionally to ensure high-quality software delivery.
Overview
6
6
years of professional experience
Work History
Test Analyst
TCS
08.2022 - Current
- Developed and maintained a robust Selenium TestNG automation framework, reducing manual testing by 30%.
- Designed and executed API tests using Postman, ensuring seamless integration between services.
- Automated over 500 functional, regression, and UI test cases, improving test coverage by 40%.
- Led test strategy formulation and ensured test plan alignment with business objectives.
- Integrated GitHub for version control, enhancing collaboration and maintainability across a four-member automation team.
Test Engineer
Building Blocks software
09.2021 - 08.2022
- Designed a scalable automation framework using Selenium, TestNG, and Cucumber (BDD) for efficient test execution.
- Conducted API testing and validation using Postman, improving backend service quality.
- Led test case design and execution for a web application serving over 10,000 users, ensuring a seamless user experience.
- Reduced error rates by 15% through proactive debugging and optimization of test scripts.
- Created and reviewed 20+ technical documents, streamlining onboarding and knowledge-sharing processes.
Quality Service Associate
Amazon
05.2019 - 09.2021
- Executed over 200 regression test cases for Alexa’s UI and mobile applications, ensuring seamless updates.
- Designed test scenarios, test conditions, and test scripts to optimize testing effectiveness.
- Improved test execution workflows, reducing testing cycle time by 20%.
- Collaborated with cross-functional teams to enhance test automation coverage and issue-resolution efficiency.
- Utilized JIRA for defect tracking and reporting, maintaining clear communication across teams.
Education
B.E - Mechatronic Engineering
Kongu Engineering College
Perundurai, Erode01.2018
Skills
- Automation Frameworks: Selenium, TestNG, Cucumber (BDD)
- Programming Languages: Java (OOP, Exception Handling)
- API Testing: Postman
- Version Control: GitHub
- Defect Tracking and Test Management: JIRA
- Agile and Scrum methodologies
KEY HIGHLIGHTS
- Developed a scalable Selenium TestNG ,BDD framework, optimizing test automation efficiency.
- Designed and executed REST API tests using Postman improving backend reliability
- Wrote unit tests to validate code integrity and reduce production defects.
- Measured product quality through structured test execution, defect tracking, and reporting metrics.
- Improved API testing coverage by 30%, reducing integration failures.
- Optimized UI responsiveness by 15% through automation and performance improvements.
- Defined test strategy and test requirements for a complex enterprise project, ensuring high-quality software delivery.
SOFT SKILLS
- problem-solving skills to debug and optimize test scenarios
- Organizational skills to manage multiple test executions efficiently
- Responsible for test planning, execution, and defect management
- Leadership skills in guiding test automation teams and improving processes
- Clear written and verbal communication for cross-functional collaboration
Timeline
Test Analyst
TCS
08.2022 - Current
Test Engineer
Building Blocks software
09.2021 - 08.2022
Quality Service Associate
Amazon
05.2019 - 09.2021
B.E - Mechatronic Engineering
Kongu Engineering College
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