Senior QA / Test Engineer | 12 weeks+ (570)

SENIOR QA / TEST ENGINEER

About the opportunity

Join a high-precision engagement to own the validation of deterministic decision paths across governance rules, ensuring flawless outcomes in a 100% remote LATAM role.

About our client Our client is preparing two AI-driven platforms for enterprise readiness, with a focus on security, correctness, and financial integrity ahead of a production launch.

What you'll do

• Author and execute functional test cases across the full governance rule library, verifying correct PERMIT / DENY / ESCALATE outcomes.

• Test the custom-rule intake path end to end, ensuring that a submitted rule resolves to a real engine record through the live path.

• Build negative and edge-case test coverage focused on the actions the platform is designed to stop.

• Support the Security / QA Lead with multi-tenant isolation and audit-chain testing.

• Maintain a traceable mapping between test cases, rules, and requirements.

• Log defects with clear reproduction steps in GitHub Issues and re-test fixes through the freeze-audit CI gate.

What you bring (must-haves)

• Solid QA / Test Engineering experience with API-driven backends.

• Working knowledge of Python and the ability to read source code to design precise tests.

• Experience with rule-based, workflow, or decision-logic systems where correctness is explicitly defined.

• Experience with Postgres / SQL for validating persisted state.

• Comfort working with Docker and CI-based test execution, such as GitHub Actions or similar.

• Disciplined approach to reproducible defect reporting.

• B1 English proficiency.

Bonus points for (nice-to-haves)

• Test automation experience against Python services.

• Exposure to authorization or policy-engine testing.

• Interest in security testing and developing further expertise in this area.

Perks & benefits 💻 Equipment provided — none of that "bring your own device" stuff here 🛡️ Full back-office support — Legal, Accounting, HR Business Partner, and Delivery team 🧭 Career and cultural mentoring — how to show up, stand out, and navigate US work culture 🗣️ Free English lessons with a native speaker 🤝 Referral bonus — recommend Ubi to your tech friends and get paid for it 🏖️ Florianópolis HQ always open — 100% remote, but the office is there whenever you want it.

How the process works

Why Ubiminds? With 9 years in the market and GPTW-certified, Ubiminds connects Latin American tech professionals with software companies in the US and Canada. Hundreds of professionals in data, design, product, and engineering are already growing in North American teams with our support. We're with you throughout the entire journey — Recruitment, Legal, Accounting, PeopleOps, and career guidance — so you can thrive internationally with confidence.