QA Engineer - Engine Tools (Code Review Focus)

QA Engineer – São Paulo (On-Site Only) This is not a developer or SDET role. Before applying, please confirm:

✔ 3+ years of professional QA experience

✔ Experience reviewing code changes (diffs/PRs) in a QA or gatekeeping capacity ✔ Familiarity with C++ or C# in a read-and-analyze context

✔ Professional English (spoken + written)

✔ Available to work fully on-site in São Paulo (NOT hybrid / NOT remote)

✔ Willing to complete a 30-minute technical assessment Applications that do not meet the required experience level will not be considered. If all of the above applies to you, keep reading please.

About

TestFly

TestFly partners with major international gaming brands to deliver high-quality QA services across tools, engines, and game systems. Our São Paulo team collaborates directly with global engineering stakeholders in English-speaking environments. Role Overview

This is a full-time, on-site QA Engineer role based in São Paulo, focused on revision and code review within an Engine Tools QA team. We're looking for a QA analyst with a code review and systems testing background. someone who has spent time in engine tools, SDKs, or platform-level software, reviewing changes and communicating findings to engineers. This role emphasizes critical thinking, structured analysis, and clear technical communication over automation ownership or development output.

You will be reviewing code-related changes, validating quality through manual analysis and testing, and collaborating closely with engineers to identify risks, gaps, and improvement opportunities. This is not a developer or SDET role. Success is defined by quality of review, clarity of feedback, and contribution to team effectiveness.

Key Responsibilities Review code changes and diffs, providing clear, risk-aware QA feedback in a gatekeeping capacity

Analyze requirements, specifications, and technical design documentation

Collaborate directly with engineers and stakeholders in English

Support risk-based testing discussions and validation strategies

Estimate and coordinate QA activities aligned with team timelines

Mentor other QA team members and promote consistent quality practices

Communicate progress, risks, and findings clearly in written updates and meetings Required Skills & Competencies Proven experience reviewing code changes (diffs/PRs) and providing structured QA feedback in a revision or gatekeeping capacity

Familiarity with C++ or C# in a read-and-analyze context . you don't write production code, but you can read a diff, follow logic, and identify risk

Experience with engine tools, SDK testing, or systems-level software

Strong written communication skills and professional judgment

Proven ability to work independently with minimal oversight

Comfort engaging directly with engineers in technical discussions

Ability to manage multiple priorities in a collaborative, fast-paced environment Preferred Background

Prior exposure to platform-level validation

Experience with performance testing

Familiarity with Java or JavaScript in a QA context

Experience with API testing or validating request/response behavior If you're an experienced QA professional who enjoys analytical review work and collaborating closely with engineers in an on-site, high-accountability environment,we'd love to hear from you.