Rajasekar K

About Rajasekar K

I’m an experienced SDET with over 4 years of hands-on expertise in Selenium WebDriver with Java, specializing in BDD frameworks using Cucumber and TestNG. I’ve had the opportunity to work on high-impact projects at Tata Consultancy Services, particularly for Citi Bank, where I led automation efforts across both functional and regression phases.My strengths lie in building scalable and maintainable automation frameworks, ensuring high coverage, and collaborating with Agile teams to deliver robust software. I’m also proficient in API validation using Postman and Rest Assured, and have actively contributed to CI/CD pipelines using Jenkins, enhancing delivery speed and stability.I take pride in my analytical thinking, attention to detail, and commitment to continuous learning — backed by certifications like ISTQB Advanced Automation Engineer and AWS Cloud Practitioner. Recognized multiple times with awards such as Service & Commitment, Contextual Master, and Elevate Wings, I strive to deliver not just code — but value.Currently looking to grow further into SDET roles, combining deep technical skills with quality-first mindset to build automation at scale.

Experience

1. System Engineer

   Tata Consultancy Services

   Feb 2024 — Present · Chennai, IN

   Project: Citibank, N.A.(Digital Technology Operations)- Regression Led regression testing efforts for Citi Bank’s digital platform by maintaining and executing 300+ combined UI and API test cases using Selenium and REST Assured, ensuring stable delivery across 16+ production releases for both web and mobile applications. Conducted regression testing across 7 banking domains, validating UI and API interactions to ensure system consistency and data accuracy across all platforms. Enhanced UI vs API validation, improving accuracy and reliability of automated tests for web and mobile applications, while optimizing Selenium and REST Assured scripts, reducing regression test execution time by 30% and accelerating release cycles. Logged defects with detailed backend vs UI mismatch documentation in JIRA, enabling quicker debugging and root cause analysis. Developed and executed comprehensive mobile test automation scripts for both Android and iOS platforms, ensuring robust functionality and cross-platform consistency. Participated in API schema reviews and endpoint updates to ensure test cases stayed in sync with evolving backend services for both web and mobile. Authored QA onboarding documentation and conducted knowledge-sharing sessions, reducing new hire ramp-up time by 40%.

Education

• Panimalar Engineering College

  Bachelor of Engineering - BE

  2017 — 2021