Senior QA Automation Engineer – Flutter (Mobile & Web)

Role Overview

At Rehire, we are partnering with an international technology company specializing in cloud, data, and digital transformation in the search for a Senior QA Automation Engineer to join a cross-platform software development project.

We are looking for an experienced QA Automation professional with strong expertise in Flutter, Dart, automated testing frameworks, and CI/CD integration, capable of designing, building, and scaling reliable testing solutions across mobile and web applications.

The ideal candidate combines solid software engineering practices with hands-on automation experience, technical ownership, and the ability to improve existing testing frameworks while ensuring high-quality software releases.

Key Responsibilities:

• Design, develop, maintain, and scale automated testing frameworks for Flutter applications across iOS, Android, and Web.

• Build automated testing solutions using Dart, flutter_test, integration_test, Patrol, Appium, or similar technologies.

• Lead the technical transition of existing QA automation activities, documentation, and testing assets.

• Audit and refactor legacy automation scripts, eliminating flaky, redundant, or unreliable tests.

• Develop maintainable automated end-to-end, smoke, and regression testing suites.

• Integrate automated test execution into CI/CD pipelines, including GitHub Actions, Cloud Build, or similar platforms.

• Implement continuous testing processes to identify defects early in the development lifecycle.

• Collaborate with developers to improve testability, validate user stories, and establish effective shift-left testing practices.

• Configure and manage testing environments, emulators, simulators, and cloud device testing platforms.

• Execute automated tests across multiple devices, operating systems, and browser environments.

• Develop and maintain automated API tests to validate backend integrations and end-to-end workflows.

• Monitor testing metrics, including execution times, test coverage, pass rates, and test flakiness.

• Participate in code reviews and contribute to automation standards, clean code practices, and continuous improvement initiatives.

• Collaborate with international engineering teams and stakeholders to ensure testing quality and release readiness.

Requirements:

• 5+ years of professional experience in Software Quality Engineering or Quality Assurance.

• At least 3 years of hands-on experience in automated UI and API testing for mobile and web applications.

• Strong experience developing test automation frameworks for Flutter applications.

• Hands-on programming experience with Dart.

• Experience with Flutter testing libraries such as flutter_test, integration_test, Flutter Driver, or similar frameworks.

• Strong knowledge of automated end-to-end, functional, smoke, and regression testing.

• Experience implementing and maintaining automated tests across iOS, Android, and Web.

• Experience configuring automated testing within CI/CD pipelines.

• Familiarity with GitHub Actions, Google Cloud Build, or equivalent CI/CD tools.

• Experience working with cloud-based device testing environments such as Firebase Test Lab or similar platforms.

• Strong knowledge of REST and GraphQL API testing and automation.

• Experience creating mock services and validating backend integrations.

• Proficiency with Git, code reviews, and collaborative software development workflows.

• Knowledge of object-oriented programming and test automation design patterns, including Page Object Model (POM) and BDD.

• Strong understanding of clean code principles and maintainable automation architecture.

• Experience improving existing automation frameworks, refactoring legacy test suites, or taking ownership of established QA environments.

• Strong analytical, troubleshooting, and problem-solving skills.

• Excellent technical communication and collaboration skills.

• Availability to work 100% onsite in Guadalajara, Mexico, five days per week.

Nice to have:

• Experience with Patrol, Appium, or other cross-platform mobile automation tools.

• Familiarity with Playwright or Selenium for cross-browser testing of Flutter Web applications.

• Experience with BrowserStack, Sauce Labs, or other cloud device testing platforms.

• Knowledge of mobile application performance testing and optimization.

• Experience profiling memory leaks, frame rates, and application performance in Flutter.

• Experience building scalable continuous testing strategies for complex software products.

• Familiarity with Agile development methodologies and shift-left quality engineering practices.

About the Position:

• Location: Mexico, Guadalajara.

• Work Model: 100% Onsite.

• Engagement Type: Contractor.

• Contract Duration: 12 months.

· Opportunity to work on international cloud security and AI-driven cybersecurity initiatives.

· Collaboration with senior engineers, architects, and distributed technical teams.

· Exposure to AI security agents, security automation, and modern cloud environments.

If you meet the requirements and are interested in this exciting opportunity, apply at www.rehire.ar/jobs and send us your CV!