SDET / QA Automation Engineer

• In-person at Morumbi, São Paulo, SP.
• Advanced English skills.

• Opportunity to work on global projects in the games industry, working directly with international engineering and quality teams in a fully English-speaking environment.
• We are looking for professionals with experience in test automation, APIs, and programming (C#, Java, or JavaScript) to work in person in São Paulo.
• Advanced English is essential.

Position Summary

TestFly is hiring QA Automation Engineers to support an Online Gaming Products platform. Engineers will join established automation frameworks across multiple projects, write and maintain automated tests, and partner closely with client developers to ensure platform quality. This is a hands-on technical role requiring strong execution, systems-level thinking, and proactive daily communication.

Key Responsibilities

—  Onboard quickly to existing automation frameworks; install, configure, run, and debug tests across multiple projects.

—  Write and modify automated tests in supported languages (Java, C#, JavaScript), following established patterns and coding standards.

—  Translate manual test cases and Postman API collections into automated scripts using the team's frameworks (e.g., Rest Assured).

—  Perform end-to-end UI testing using Playwright, Selenium, or Cypress where applicable.

—  Analyze test cases for coverage gaps and recommend additions.

—  Develop and maintain holistic understanding of systems under test, including upstream and downstream dependencies.

—  Communicate progress, blockers, and risks daily; participate actively in stand-ups and cross-team syncs.

—  Collaborate directly with client developers to clarify requirements and edge cases.

—  Document test results, defects, and system observations clearly and consistently.

Required Qualifications

—  3+ years of professional QA automation experience.

—  Proficiency in at least one of: Java, C#, or JavaScript.

—  Hands-on experience with API testing using Postman, including translation into automated test scripts.

—  Demonstrated experience working within established automation frameworks (not building from scratch).

—  Strong written and verbal communication in English.

—  Ability to own work end-to-end, self-direct, and proactively raise issues and questions.

—  Comfort working across multiple concurrent projects with frequent context-switching.

Preferred Qualifications

—  UI E2E automation experience with Playwright, Selenium, or Cypress.

—  Hands-on experience with Rest Assured or comparable API automation libraries.

—  Exposure to non-HTTP protocols: WebSockets, Protobuf.

—  Performance testing experience.

—  CI/CD pipeline experience: Jenkins, GitHub Actions, or similar.

—  C++ familiarity.

—  Prior gaming industry or live online services experience.

Behavioral Expectations

—  Proactive communicator who speaks up, asks questions, and engages in technical discussions.

—  Active participant in stand-ups and cross-functional meetings.

—  Systems thinker who understands dependencies and looks for coverage gaps.

—  Team-first mindset; works closely with developers and fellow QA engineers.

—  Comfortable taking ownership of ambiguous problems and driving them to resolution.

Work Environment

—  In-office work based at TestFly's São Paulo office.

—  Daily collaboration with clients distributed engineering teams (primarily US time-zone overlap required).

—  Standard TestFly Brazil employment terms apply.