Senior QA Engineer – Contractor Role

Working hours: 7 AM - 4 PM - Brazilian timezone

Days of work: Monday - Friday

Employment type: Contractor - indefinite

About the Role

We are seeking a Senior QA Engineer who not only brings strong technical expertise in test automation and quality assurance but also excels in communication, collaboration, and balancing priorities. This is a fast-paced team , and success in this role requires the ability to quickly understand complex technical systems, communicate effectively, and partner closely with senior and principal engineers.

The ideal candidate has hands-on experience with API testing, UI testing, and automation frameworks (Playwright preferred). Just as importantly, they can adapt under pressure, prioritize effectively in a dynamic environment, and contribute to a culture of quality, ownership, and teamwork.

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Your Responsibilities

1. Quality Ownership

• Drive testing efforts across web applications, APIs, and integrations to ensure high-quality releases.

• Advocate for quality throughout the software development lifecycle.

2. Test Automation

• Design, implement, and maintain automated test suites using Playwright (and other automation tools where appropriate).

• Improve automation reliability, maintainability, and execution efficiency.

3. API Testing

• Develop and execute automated and manual tests for RESTful and GraphQL APIs.

• Validate data integrity, business logic, error handling, and service reliability.

4. UI Testing

• Validate front-end workflows, user journeys, and overall user experience.

• Ensure applications meet functional, usability, and accessibility expectations.

5. Communication & Collaboration

• Clearly document test cases, test results, and defects in a concise and understandable manner.

• Partner closely with senior and principal engineers, product managers, and cross-functional stakeholders to align on requirements and priorities.

• Present testing findings, quality risks, and recommendations confidently, adapting communication for both technical and non-technical audiences.

6. Prioritization

• Balance competing priorities and deadlines in a fast-paced environment.

• Focus testing efforts on critical business paths while maintaining long-term quality objectives.

7. Mentorship & Process Improvement

• Mentor junior QA engineers and share testing best practices.

• Contribute to process improvements and help foster a collaborative, quality-focused engineering culture.

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Your Profile

Required Qualifications:

• 5+ years of experience in Quality Assurance.

• 2+ years of hands-on automation experience.

• Strong experience with Playwright (or Selenium/Cypress with a willingness to transition).

• Proven experience testing RESTful APIs using tools such as Postman , REST Assured , or similar.

• Solid understanding of:

  • Test planning

  • Test execution

  • Defect lifecycle management

• Excellent verbal and written communication skills with the ability to bridge technical and non-technical conversations.

• Strong organizational and time management skills with the ability to manage multiple priorities.

• Ability to quickly understand complex technical systems and contribute to technical discussions.

• Collaborative, proactive, and solution-oriented mindset.

• Ability to work independently while partnering effectively with distributed teams.

Nice to Have:

• Experience working in Agile/Scrum environments.

• Familiarity with CI/CD pipelines and modern software delivery practices.