Role OverviewAt 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 adecuado 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.

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📌 Senior QA Automation Engineer – Flutter (Mobile & Web) (Madrid)
🏢 ReHire
📍 Madrid