Top QA Engineer Jobs in Madrid

The role focuses on leading product safety and quality initiatives within supply chains, collaborating cross-functionally while providing expertise and thought leadership in compliance and sustainability.

The Senior Automation QA Engineer will create and execute test plans, perform regression testing, report defects, collaborate with teams, and maintain testing environments.

Develop and maintain automation testing frameworks, execute tests, and implement AI-driven quality practices while collaborating with product teams.

The Senior QA Tester designs testing processes for web/mobile applications, identifies software issues, and collaborates with teams to uphold quality standards.

As a Quality Assurance Engineer, you will test software, validate new features, perform regression testing, and manage user-reported bugs.

Define and execute QA strategy for backend services, APIs, integrations, and critical workflows. Design and run functional, integration, regression, exploratory, and automated tests. Validate REST APIs, authentication, data integrity (PostgreSQL), and monitor logs/traces. Collaborate with developers and product owners to identify risks, improve QA practices, and maintain CI/CD test automation.

Lead QA for an AI voice assistant across prompt/agent behavior, mobile/TV devices, and backend services. Perform manual end-to-end testing, analyze observability/tracing data, validate integrations (REST/gRPC), maintain test cases and bugs, collaborate with TPM/Prompt Engineers/Dev/ML, and serve as first-line QA for demos.

Produce and maintain technical documentation (use cases, specs, API guides) and ensure quality of complex MEAN web applications. Develop and execute functional and automated tests (Selenium), perform API testing, track requirements in SharePoint, work in an agile/Kanban team, and coordinate with technical leads and business owners to identify and resolve risks and defects.

Write and maintain end-to-end technical documentation and ensure quality for complex MEAN web applications. Develop and execute functional and automated tests (Selenium, API), work with CI/CD pipelines (GitLab), track requirements in SharePoint, and collaborate with technical leads and analysts in an agile/Kanban process during New York business hours.

Lead and architect end-to-end QA automation for a distributed data SaaS platform: build scalable frameworks, embed tests in CI/CD, drive integration/API/performance/data-integrity testing, eradicate flaky tests, mentor engineers, own release quality sign-off, collaborate across product and engineering, and apply AI tools to accelerate testing and optimize QA metrics.

Own web QA across website, checkout, and B2B product. Design and build test infrastructure, define coverage strategy, and run regression, smoke, end-to-end, and integration tests. Implement web test automation (Playwright/Selenium), API testing (Postman), integrate tests into CI/CD, investigate root causes, file actionable Jira/X-ray tickets, and apply AI tooling where useful. Perform manual testing when needed and collaborate with product, developers, and design.

Build and maintain automated test suites for smart contracts and UIs, integrate testing into development, identify and track bugs, improve test frameworks, and ensure comprehensive coverage for new features.

Lead the QA process for mobile app testing, implement CI systems, manage bugs, and develop automated tests for iOS and Android applications.

Design, build, and maintain automated test frameworks for web apps and APIs using .NET/C#. Create and run UI, API, integration, and regression tests; integrate tests into CI/CD pipelines; troubleshoot failures; document test plans; collaborate with developers, DevOps, and QA; and participate in Agile ceremonies.

Lead QA efforts for a B2B marketplace: manual, exploratory, and automated testing. Expand Cypress e2e suite, build API tests (Postman/Playwright), run basic performance tests, use Sentry/Hotjar and AWS tracing for investigations, and integrate AI-assisted QA workflows. Collaborate across engineering, product, and operations to improve release reliability.

Perform manual and automated testing across web, mobile, APIs, backend services, and blockchain integrations. Build and maintain Python-based test frameworks, investigate issues across distributed systems, analyze logs/metrics/network traffic, contribute to release validation and automation, and collaborate with product, engineering, and DevOps. Use AI tools to accelerate testing, support incident analysis, and proactively improve testing coverage and product reliability.

Perform 50/50 manual and automated testing using Python, expand and stabilize an existing automation framework, design test strategies, integrate tests into CI/CD, execute performance/load and API testing, collaborate with cross-functional teams, and improve QA processes.

The App Integration Specialist will engage in creating test environments, maintaining third-party repositories, performing product testing, and supporting automation scripts while collaborating with the development team.

Lead GCP quality for Prilenia's clinical programs from startup through inspection readiness. Oversee CRO and vendor QA, eTMF quality, CAPA resolution, audits, and regulatory inspection responses. Provide GVP and GLP QA oversight, author SOPs, define quality metrics, build a fit-for-purpose QMS, mentor QA staff, and represent QA in cross-functional governance.

Design, build, and maintain end-to-end test automation frameworks (UI, API, smart contracts, wallet flows), write Web3-specific tests, integrate suites into CI/CD, improve coverage, and promote quality across engineering using AI-assisted tooling.

Own and drive QA processes for the Nexus team: develop and maintain automated API/UI tests, perform backend manual testing, maintain test infrastructure (CI/CD, Docker), document workflows, collaborate with product and engineering, and support internal users troubleshooting product issues.

The Senior Automation QA Engineer will document test plans, perform regression testing, identify software defects, collaborate with teams, and maintain testing environments.

Lead QA automation for a healthcare scheduling platform: define test strategy, build and maintain Playwright + TypeScript E2E tests, manage risk-based regression, perform manual/exploratory testing, validate authentication and permissions, collaborate with engineers on test coverage, and evolve the testing framework.

Seeking a Senior QA Engineer to manage quality assurance for AI-driven products, conduct automated tests, and validate complex data outputs. Responsibilities include exploratory testing for conversational agents and collaborating with ML teams to define performance metrics.

The QA Automation Engineer will design and execute tests for API applications, develop automation frameworks, and collaborate with teams to enhance product quality.