Senior QA Automation Engineer (Playwright)
Miratech
$0-$0 / yr
Salary
brazil
Region
ASAP
Start Date
About Miratech
Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a global leader, and create technology that helps our clients further enhance their business. We are a values-driven organization, and our culture of Relentless Performance has enabled over 99% of Miratech's engagements to succeed by meeting or exceeding our scope, schedule, and/or budget objectives since our inception in 1989. Miratech has coverage across 5 continents and operates in over 25 countries around the world. Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.
About this Role.
We are looking for a Senior QA Automation Engineer with strong expertise in both manual and automated testing to join our team and contribute to the development of a new unified enterprise platform for a B2B communications provider. The platform consolidates multiple legacy customer portals into a single solution that supports the full commercial lifecycle for telecom customers.
Responsibilities:
Own end-to-end quality assurance, including test strategy, test case design, and acceptance validation
Perform manual and exploratory testing of new features in fast-changing (greenfield) environments where early automation is not optimal
Gradually design, build, and maintain automated test suites for stabilized functionality, including UI, API, integration, and E2E tests
Define and maintain a regression testing approach, starting with manual smoke testing and evolving into automated regression coverage focused on high-risk areas (auth, number purchase, porting, billing)
Conduct API and integration testing across external systems such as carrier platforms, ServiceNow, billing APIs, and Cognito authentication flows
Integrate automated testing into CI/CD pipelines and ensure continuous quality validation
Collaborate with Business Analysts to clarify and validate acceptance criteria
Log, track, and manage defects through resolution
Support stabilization phases and UAT cycles to ensure production readiness
4+ years of experience in QA engineering, covering both manual and automated testing.
Strong hands-on experience with UI test automation using Playwright.
Solid experience in API testing using tools such as Postman and/or JavaScript/TypeScript-based frameworks.
Strong background in manual and exploratory testing with effective test design capabilities.
Good understanding of microservices architectures and integration testing principles.
Experience working with CI/CD pipelines and integrating automated test suites.
Proficiency in JavaScript / TypeScript for test automation development.
English proficiency: Upper-Intermediate (B2) or higher.
Nice to have:
Awareness or hands-on experience with performance or load testing.
Experience with contract testing tools such as Pact and/or event-driven testing (Kafka-based systems).
Experience testing authentication and SSO flows (e.g., AWS Cognito, OIDC).
Exposure to telecom, CPaaS, or UCaaS domains.
Awareness of security testing principles.
Experience with test management tools such as Jira Xray or TestRail.