At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.
With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.
We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.
At CI&T, we are seeking a highly skilled and motivated Quality Analyst Senior to join our team in Brasil. You will contribute to an innovative project in a collaborative, innovative, transforming, and multicultural environment.
Position Overview:As a Quality Analyst Senior, you will play a critical role in ensuring the quality and performance of our software solutions. You will lead the design and implementation of comprehensive testing strategies, focusing on automated end-to-end flows and REST APIs. Collaborating with cross-functional teams, you will ensure our products not only meet but exceed client expectations.
Key Responsibilities: What you'll do- Translate product stories and acceptance criteria into layered test strategies, including unit, API-contract, integration, E2E, and exploratory testing.
- Design, execute, and maintain automated E2E flows for a modern React/Vite web app using Playwright (TypeScript).
- Cover REST APIs (Python/FastAPI backends) with contract tests and behavior tests using pytest and HTTP clients (Postman/Bruno, httpx).
- Verify constraint-based and optimization behavior through scenario-based tests, ensuring rigorous testing of feasibility and resource-fit rules.
- Validate multi-tenant isolation, RBAC, and OIDC/OAuth2 flows to ensure tenant data integrity and security.
- Build and maintain a lightweight exploratory/session-based practice to catch edge cases that scripted tests may miss.
- Run root cause analysis on production/staging defects, driving fixes with clear reproducibility notes and evidence.
Must-have Skills:
- Strong grasp of the testing pyramid and hands-on experience with functional and non-functional testing.
- Expertise in test automation for modern web apps (Playwright preferred or Cypress).
- Proficiency in REST API testing with contract-first tooling, able to design tests from an OpenAPI spec.
- Strong SQL/PostgreSQL skills for writing non-trivial queries and validating data.
- Comfort with modern issue trackers, GitHub, and CI/CD workflows.
- Advanced English proficiency.
You'll stand out if you have:
- Experience in testing constraint/optimization systems.
- Proficiency in Python and pytest.
- Familiarity with multi-tenant SaaS testing and accessibility testing to WCAG 2.1 AA.
- Experience in performance/load testing and event-driven/async workflow testing.
At CI&T, we are driven by Collaboration, Innovation & Transformation. We leverage the power of AI to enhance our projects and foster an environment where your skills can thrive. If you're passionate about quality assurance and want to make a significant impact, we invite you to apply and be a part of our forward-thinking team.
#LI-CI
Skills Required
- Strong grasp of the testing pyramid and hands-on experience with functional and non-functional testing.
- Expertise in test automation for modern web apps (Playwright preferred or Cypress).
- Design and execute automated E2E flows for React/Vite web apps using Playwright (TypeScript).
- Proficiency in REST API testing and ability to design tests from an OpenAPI spec (contract-first testing).
- Experience covering REST APIs for Python/FastAPI backends and using HTTP clients (httpx, Postman/Bruno).
- Strong SQL/PostgreSQL skills for writing complex queries and validating data.
- Comfort with modern issue trackers, GitHub, and CI/CD workflows.
- Validate multi-tenant isolation, RBAC, and OIDC/OAuth2 authentication/authorization flows.
- Advanced English proficiency.
- Experience in testing constraint/optimization systems.
- Proficiency in Python and pytest.
- Familiarity with multi-tenant SaaS testing and accessibility testing to WCAG 2.1 AA.
- Experience in performance/load testing and event-driven/async workflow testing.
What We Do
CI&T is your end-to-end digital transformation partner. As a digital native, we bring a 27-year track record of accelerating business impact through complete and scalable digital solutions. With a global presence of 6,000+ professionals in strategy, research, data science, design and engineering, we unlock top-line growth, improve customer experience and drive operational efficiency.
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