Senior Mobile QA Engineer (React Native | Appium | Selenium)
Job DescriptionHector Systems Inc. is seeking an experienced Senior Mobile QA Engineer with strong expertise in React Native mobile application testing, QA automation, API testing, Android/iOS testing, and Agile delivery for a long-term Federal program in Baltimore, MD.The ideal candidate will have extensive experience validating enterprise mobile applications, executing automation testing, and collaborating with cross-functional teams to deliver high-quality software.⚠️ This is a 100% onsite role (5 days/week) in Baltimore, MD.ResponsibilitiesPerform Functional, Regression, Integration, System, Smoke, and End-to-End testing for React Native mobile applications.Validate applications across Android and iOS devices and operating system versions.Design and execute test plans, test cases, test scenarios, test scripts, and test data.Perform API testing using Postman, Swagger, SoapUI, or similar tools.Develop and execute automation scripts using Appium, Selenium, Detox, BrowserStack, Sauce Labs, or similar frameworks.Track and manage defects using Jira, Azure DevOps, or equivalent tools.Collaborate with developers, business analysts, product owners, UI/UX teams, and client stakeholders.Support UAT, production releases, deployment validation, and post-production testing.Follow enterprise QA, accessibility, security, and Agile best practices.Required Qualifications10+ years of professional IT/QA experience.Strong experience testing React Native mobile applications.Expertise in Android and iOS mobile application testing.Experience with Functional, Regression, Integration, System, Smoke, and End-to-End testing.Strong API testing experience using Postman, Swagger, or SoapUI.Experience with Appium, Selenium, Detox, BrowserStack, Sauce Labs, or similar automation tools.Experience with Jira, Azure DevOps, or other defect management platforms.Experience working in Agile/Scrum environments.Excellent communication, documentation, troubleshooting, and client-facing skills.Preferred QualificationsExperience supporting Federal, State Government, Healthcare, or large Enterprise projects.Experience with CI/CD pipelines, Git, mobile build processes, and release management.Knowledge of accessibility testing and secure mobile application testing.Work Location📍 Baltimore, MD (100% Onsite – 5 Days/Week) ❌ Remote and Hybrid work are not available.👍 Follow our LinkedIn page[Hector Systems Inc] for the latest IT job opportunities, hiring updates, and career opportunities across the U.S.