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

RemoteFull-timesenior

OtherQa Test Engineer

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Quick Summary

Overview

Info on the Senior QA / Test Engineer role Want to get to the next step in your international career? We can support you! Ubiminds is a GPTW-certified,

Technical Tools

OtherQa Test Engineer

Want to get to the next step in your international career? We can support you!

Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development footprint. Ubi custom-curates Brazilian top 5% talent for their LATAM strategy, offering a unique combo of staff augmentation and employer-of-record services.

We are hiring 2 Senior QA / Test Engineers for this engagement.

We’re looking for Senior QA / Test Engineers to own the validation of the deterministic decision path across every rule and input.

You will be responsible for verifying that PERMIT / DENY / ESCALATE outcomes resolve correctly across the full governance rule library and the custom-rule intake path. You will build traceable functional coverage, validate end-to-end workflows, and support the Security / QA Lead with adversarial and audit-chain testing.

Precision is critical: on a deterministic control plane, a single incorrect outcome is considered a defect.

The engagement is full-time, approximately 12 weeks, and remote within.

Responsibilities

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Author and execute functional test cases across the full governance rule library, verifying correct PERMIT / DENY / ESCALATE outcomes.
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Test the custom-rule intake path end to end, ensuring that a submitted rule resolves to a real engine record through the live path.
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Build negative and edge-case test coverage focused on the actions the platform is designed to stop.
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Support the Security / QA Lead with multi-tenant isolation and audit-chain testing.
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Maintain a traceable mapping between test cases, rules, and requirements.
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Log defects with clear reproduction steps in GitHub Issues.
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Re-test fixes through the freeze-audit CI gate.

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.
Comfortable working with Docker and CI-based test execution, such as GitHub Actions or similar.
Disciplined approach to reproducible defect reporting.
English B1

Nice to Have

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Test automation experience against Python services.
Exposure to authorization or policy-engine testing.
Interest in security testing and developing further expertise in this area.

Focus: Functional correctness of the deterministic decision path.
Seniority: Senior
Reports to: Senior Security / QA Lead.
Full-time engagement of approximately 12 weeks.
Remote position within LATAM.
Environment focused on precise, traceable, and reproducible testing.
Close collaboration with the Senior Security / QA Lead on security and audit-chain coverage.

Full-coverage functional test suite across the rule library, executed with documented results.
Custom-rule intake path verified end to end.
Traceable test-case library successfully handed over.
Clean defect flow through green CI.