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.

Perform manual testing across the SDLC: create and run test cases, execute functional/regression/integration/exploratory/UAT, manage defects, validate releases, support performance testing, collaborate with developers and PMs, and leverage AI tools to improve QA efficiency.

Design and execute comprehensive test plans for dApps and smart contracts, perform unit/integration/end-to-end testing, run security audits and vulnerability assessments, automate tests within CI/CD pipelines, monitor quality metrics, debug issues, and collaborate with developers and product managers to ensure reliable DeFi/EVM-compatible applications.

Mid-level QA Engineer owning end-to-end testing for a B2B SaaS logistics/WMS platform. Execute manual, regression, exploratory, and API tests; build and maintain automated suites; review GitHub pull requests; write clear bug reports; and drive quality and process improvements in an Agile, CI/CD environment.

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.

Conduct manual testing of web applications and new features across frontend and backend systems. Create and maintain test documentation, perform functional and regression testing, identify and track defects, verify fixes, and validate releases. Collaborate with development and product teams, analyze requirements, test REST APIs and databases, and provide quality improvement feedback within Agile environments.

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.

The Senior QA Engineer will define and execute quality strategies for backend services, REST APIs, integrations, and critical healthcare workflows. Responsibilities include designing test plans, performing functional, regression, exploratory, integration, and API testing, validating databases and data integrity, maintaining automated test suites, analyzing observability data, and collaborating with engineering and product teams on risk and release readiness. The role will also establish QA standards and continuous improvement practices.

Perform manual and automated functional and regression testing of marketing sites, web services, and analytics. Build automated checks, leverage AI to generate tests and data, validate tracking and localization, document QA artifacts, report metrics, and collaborate with Marketing, Analytics, Engineering, and Mobile teams to ensure reliable product and marketing releases.

Lead QA efforts across web/SaaS and high-load scraping/data/AI platforms. Perform manual and automated testing (Python, TypeScript), API and microservice validation, performance and observability-driven testing, integrate checks into CI/CD, and improve quality metrics and automated quality gates while diagnosing production incidents.

Manual and automated QA for Pod releases: run local/staging environments, submit transactions, verify APIs/receipts/state, reproduce and report bugs, write end-to-end and headless browser tests, and build release checklists and automation.

Responsible for leading quality assurance tasks across multiple projects, ensuring high-quality software and mentoring less experienced colleagues.

As an Automation QA Engineer, you'll test payment integrations, define test scope, develop automation plans, and build reliable automated tests to ensure product quality and continuous improvement.

Quality-check ocean freight contracts, rates and surcharges against source documents; correct errors before customer-facing; communicate with vendor partners; find recurring error patterns and improve QA processes; use AI tools to speed QA and maintain high-quality master data.

Proofread and edit localized content into Bulgarian, check UIs for functional issues, report linguistic and functional bugs, follow test cases and client style guides, research linguistic queries, and complete assigned QA tasks accurately and on time.

Proofread and edit localized content for grammar, punctuation, consistency and cultural accuracy; sometimes translate English to target language. Test UIs, log bugs, follow test cases and client style guides, research linguistic issues, and complete assigned tasks on time.

Lead a hybrid QA team to own testing lifecycle from requirements to release. Design and run manual and automated web, mobile, and API tests, develop test frameworks, improve CI pipelines, mentor engineers, track defects, and ensure high-quality releases.

Lead mobile QA for iOS, Android, and responsive web: design and execute manual and automated tests, run exploratory/regression/smoke testing, validate performance and cross-device compatibility, perform API/integration testing, document defects, improve QA processes, mentor junior QAs, and communicate release readiness.

Own end-to-end quality validation for new features and releases on a genomics platform. Design, build, and maintain scalable automated regression suites (Playwright/Cypress/Selenium), run API/integration tests (Postman/Swagger), integrate tests into CI/CD, lead exploratory testing and release readiness, track defects to resolution, improve QA processes, and mentor junior QA engineers while communicating quality risks across teams.

The Senior Software Quality Engineer role focuses on enhancing testing frameworks, automating functions, testing features, and improving existing infrastructure for ClickHouse's cloud offerings.

Lead QA for European manufacturing and field sites, perform factory and on-site inspections, drive 8D/Six Sigma problem solving, produce reports (RCAs, corrective action plans), coordinate with engineering, operations, and factory leadership, and track closure of quality items.

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

Investigate and reproduce customer-reported issues, create actionable bug reports, design and run manual and automated test plans, validate fixes, improve automated coverage, and track quality metrics for Kestra OSS and Enterprise editions.

Lead QA for the Site Intelligence product: build QA processes and standards, design and implement scalable test automation for backend APIs, UI, microservices and data pipelines, validate cross-system integrations, and integrate automated tests into CI/CD. Partner with product, engineering, and infrastructure teams to embed quality throughout the development lifecycle and ensure reliable staging and release processes.

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.