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I bring strong experience in QA engineering with expertise in manual testing, functional testing, and API testing using tools like Postman and Insomnia. I also have hands-on experience in automation testing using Selenium and Rest Assured, along with knowledge of test planning, defect tracking, and validating end-to-end workflows. Additionally, I am currently pursuing an AI/ML course to expand my skills in emerging technologies and understand how AI can be integrated into testing and quality assurance processes. In my free time, I enjoy learning new technologies, exploring AI/ML concepts, improving my automation skills, and staying updated with industry trends. I also enjoy problem-solving and working on technical learning projects that help enhance my knowledge and professional growth.…I bring strong experience in QA engineering with expertise in manual testing, functional testing, and API testing using tools like Postman and Insomnia. I also have hands-on experience in automation testing using Selenium and Rest Assured, along with knowledge of test planning, defect tracking, and validating end-to-end workflows. Additionally, I am currently pursuing an AI/ML course to expand my skills in emerging technologies and understand how AI can be integrated into testing and quality assurance processes. In my free time, I enjoy learning new technologies, exploring AI/ML concepts, improving my automation skills, and staying updated with industry trends. I also enjoy problem-solving and working on technical learning projects that help enhance my knowledge and professional growth.

Sahana Chitrasena

QA Engineer, AI Engineer, Data Scientist, +2

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I bring strong experience in QA engineering with expertise in manual testing, functional testing, and API testing using tools like Postman and Insomnia. I also have hands-on experience in automation testing using Selenium and Rest Assured, along with knowledge of test planning, defect tracking, and validating end-to-end workflows. Additionally, I am currently pursuing an AI/ML course to expand my skills in emerging technologies and understand how AI can be integrated into testing and quality assurance processes. In my free time, I enjoy learning new technologies, exploring AI/ML concepts, improving my automation skills, and staying updated with industry trends. I also enjoy problem-solving and working on technical learning projects that help enhance my knowledge and professional growth.…I bring strong experience in QA engineering with expertise in manual testing, functional testing, and API testing using tools like Postman and Insomnia. I also have hands-on experience in automation testing using Selenium and Rest Assured, along with knowledge of test planning, defect tracking, and validating end-to-end workflows. Additionally, I am currently pursuing an AI/ML course to expand my skills in emerging technologies and understand how AI can be integrated into testing and quality assurance processes. In my free time, I enjoy learning new technologies, exploring AI/ML concepts, improving my automation skills, and staying updated with industry trends. I also enjoy problem-solving and working on technical learning projects that help enhance my knowledge and professional growth.

Available to hire

I bring strong experience in QA engineering with expertise in manual testing, functional testing, and API testing using tools like Postman and Insomnia. I also have hands-on experience in automation testing using Selenium and Rest Assured, along with knowledge of test planning, defect tracking, and validating end-to-end workflows. Additionally, I am currently pursuing an AI/ML course to expand my skills in emerging technologies and understand how AI can be integrated into testing and quality assurance processes.

In my free time, I enjoy learning new technologies, exploring AI/ML concepts, improving my automation skills, and staying updated with industry trends. I also enjoy problem-solving and working on technical learning projects that help enhance my knowledge and professional growth.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Sr QA Engineer – Automation & AI at Optum

September 1, 2022 - Present

Implemented AI-driven test optimization models using clustering and anomaly detection to group similar test failures, detect unusual defect patterns, and improve test execution efficiency. Built ML models (Random Forest, Gradient Boosting) to predict defect-prone areas, enabling risk-based test prioritization and reducing regression cycle time by 30-40%. Developed ML models (regression, classification, clustering) to solve business problems, with feature engineering and model tuning. Performed end-to-end data analysis and preprocessing using Python (Pandas, NumPy) for EDA and actionable insights. Designed scalable automation frameworks using Selenium WebDriver, TestNG, Maven, and Page Object Model (POM) to automate 350+ test cases across frontend and backend. Automated end-to-end functional, regression, integration, and UAT test scenarios for pharma applications, improving release quality. Developed API automation and backend validation using REST Assured, POSTMAN, and SQL. Built CI/CD

QA Engineer at KeySight Technologies

June 1, 2014 - May 1, 2015

Developed test strategy for minimal, high-value tests to determine application quality. Validated business rules, user/customer functionalities, and Change Processes. Automated enhancements using Selenium WebDriver and TestNG. Validated web services for customer, account, and transaction management using Postman and HTTP requests with data validation. Executed distributed test automation on multiple environments as part of CI using Selenium Grid and Jenkins. Created and maintained UI validations using XPath/CSS. Exported automated test results. Designed and developed UAT regression automation scripts and a functional testing framework for all modules using Selenium and WebDriver. Used Maven for building the WebDriver project and integrated with Jenkins for nightly runs. Conducted GUI validations of menus, toolbars, fields. Prepared test data for test case execution. Used Postman for API testing to verify CRUD operations. Executed SQL queries and functions for database testing. Prepared