Mid-Level QA Engineer

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Mid-Level QA Engineer in Others

CESAR (Centro de Estudos e Sistemas Avançados do Recife)
Full time
Email

Others
09/17/2026
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Recife, Brazil

Responsibilities

Analyze requirements, user stories, and acceptance criteria and participate in refinement sessions to identify ambiguities and risks.
Create test plans, scenarios, and test data and execute functional, exploratory, regression, integration, and end-to-end validations.
Develop and maintain automated interface, API, integration, and regression tests.
Evaluate AI agents and RAG/GraphRAG applications and help create tests that reduce regressions involving prompts, models, and data.
Validate interfaces, error messages, accessibility, usability, and performance, including limited or intermittent connectivity scenarios.
Record defects with clear evidence, analyze failure patterns, and communicate quality risks to the team.
Collaborate with Product, Engineering, Data, UX, and domain specialists to continuously improve quality processes.

Requirements

At least five years since completing a degree in Computer Science, Software Engineering, Information Systems, or a related field.
Professional experience with software quality, web application testing, and REST API testing.
Knowledge of functional, exploratory, regression, and integration testing techniques, including test-plan and test-scenario creation.
Knowledge of test-automation tools and programming languages such as JavaScript, TypeScript, Python, Java, or C#.
Experience testing relational databases and basic knowledge of SQL.
Knowledge of defect-management tools, Git version control, and continuous integration processes.
Critical thinking skills for analyzing requirements, questioning behavior, and documenting clear, objective, reproducible defects.
Preferred: experience validating generative AI applications, including hallucination, prompt-injection, and response-consistency risks.
Preferred: knowledge of RAG, GraphRAG, embeddings, security testing, and digital accessibility using WCAG.
Preferred: experience with performance and load testing, asynchronous or messaging architectures, and API contract testing.
Preferred: experience in oil and gas, energy, or regulated industrial environments.

Benefits

Flexible working hours.
Horizontal organizational structure.
Training and professional development programs.
Diversity and inclusion-oriented culture.
Health and dental insurance.
Meal or food allowance.
Language-learning allowance.
Childcare allowance.
Contact-lens allowance.
Life insurance.
Discounts on CESAR School courses.
Birthday-month day off.
Gympass/Wellhub.
Moodar.
Cíngulo.

CESAR (Centro de Estudos e Sistemas Avançados do Recife)

CESAR is a Brazilian innovation and education center that delivers software engineering, design, and digital consulting for enterprises and public-sector clients. It builds custom products and systems—spanning UX, IoT, AI/ML, testing, and cloud/edge—through nearshore delivery from Brazil. Founded...

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