For Brazil Only, PJ contract, Fluent English
Position: Senior Quality Assurance (QA) Engineer
Location: Brazil (Remote)
Work Hours: Must have overlap with U.S. Central Time
Start Date: Immediate
Contract Type: PJ (Pessoa Jurídica)
Duration: 3-4 months
Language Requirement: Fluent English required ( U.S.-based company)
Summary
We’re looking for an experienced QA Engineer who ramps up quickly on complex business domains and turns that understanding into clear, risk-based test strategies. You’ll combine strong manual testing skills with proven test case design and automation in .NET (C#) to raise the bar on quality across web, API, and data flows. You’ll partner closely with Product, Engineering, and DevOps to deliver reliable, testable, and observable software continuously.
What You’ll Do
* Translate business processes into tests: Rapidly learn product/domain concepts and map endtoend workflows into highvalue test scenarios and acceptance criteria.
* Design and execute test suites: Build and maintain comprehensive manual and automated tests (UI, API, integration, regression, smoke, and exploratory).
* Build .NET automation: Develop and maintain C# test automation frameworks (e.G., Playwright, Selenium WebDriver, SpecFlow BDD, NUnit/xUnit/MSTest) aligned to SOLID and POM principles.
* Enable CI/CD quality gates: Integrate automated tests into pipelines (e.G., Azure DevOps, GitHub Actions) with parallel runs, test reporting, and flaky-test management.
* Collaborate across disciplines: Work with Product Owners to refine acceptance criteria, with Developers to shift-left quality, and with business users to validate in staging/preproduction environments and in production once deployed.
* Own defect lifecycle: Identify, document, prioritize, and drive resolution of defects with clear reproduction steps, logs, screenshots, and impact.
* Data & API validation: Test APIs, validate payloads and contracts (e.G., via Swagger/OpenAPI), and verify database outcomes (SQL Server).
* Non-functional checks: Contribute to performance baselines (e.G., k6, JMeter), and security test coordination.
* Test strategy & traceability: Maintain risk-based test plans, coverage maps, and traceability to requirements/ACs.
* Mentor & improve: Share best practices, pair on tests, and improve standards for reliability, maintainability, and observability of tests.
Must Have Qualifications
* Software quality assurance experience, including extensive manual testing and test case design.
* Proficiency in building and maintaining automated tests in .NET (C#) for UI and/or API layers.
* Strong understanding of .NET/.NET Core, ASP.NET (MVC/Web API) fundamentals, HTTP, and JSON.
* Hands-on with Selenium and/or Playwright, plus NUnit/xUnit/MSTest;
experience.
* Comfortable reading application code, using Visual Studio/Visual Studio Code, debugging tests, and collaborating on testability.
* Experience with Azure DevOps or GitHub for source control, boards/issues, and CI/CD pipelines.