This is a remote position. * This position is open exclusively to candidates located in Mexico or Colombia * Advancio is a global IT services company committed to providing cutting-edge technology solutions. We’re looking for a skilled React Native Developer to build high-quality, cross-platform mobile applications. You’ll collaborate with product, design, and backend teams to deliver performant, scalable, and feature-flag-driven experiences. We’re hiring a Senior QA Automation Engineer to lead our quality efforts, with a strong focus on building and maintaining automated test frameworks. You’ll be responsible for ensuring our products meet the highest quality standards, with Feature Flags enabling safe, incremental releases. Design, develop, and maintain automated test suites for web and mobile applications. Implement and manage Feature Flag-aware testing strategies to support gradual rollouts and experiments. Own QA strategy and advocate for quality across the engineering organization. Collaborate with developers and product managers to ensure requirements are met and defects are resolved quickly. Lead regression testing, performance testing, and release validation. Mentor other QA engineers and help improve testing processes. Requirements 5+ years in software QA, with 3+ years in automation . Proficiency with test automation tools/frameworks (Cypress, Playwright, Selenium, Appium). Experience testing both web and mobile platforms. Hands-on experience with Feature Flags in a testing context. Strong understanding of CI/CD pipelines and integrating automated tests. Familiarity with API testing tools (Postman, Insomnia) and scripting automated API tests. Excellent analytical and communication skills. Advanced English Communication Skills Nice-to-Haves Experience with performance/load testing tools (JMeter, k6). Experience in Agile/Scrum environments. Security testing knowledge.