Top QA Engineer Jobs in Barcelona

Lead and evolve QA strategy and automation frameworks across backend, frontend and embedded systems. Design and maintain automated tests, integrate into CI/CD, define release acceptance criteria and quality gates, perform functional/regression/integration testing, analyze production issues, monitor quality metrics, and promote a quality-first culture.

The Senior Software Quality Assurance Specialist ensures quality for public-facing applications by verifying requirements, performing testing, and collaborating with cross-functional teams while also mentoring junior QA members.

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.

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.

The QA Automation Engineer will conduct testing of mobile ads, validate SDK integrations, verify analytics, and collaborate with teams for quality assurance in AdTech.

The Backend QA Engineer will design tests for APIs and databases, validate performance, and maintain quality through collaboration with engineering teams.

The QA Automation Engineer will develop and maintain automated test frameworks and regression tests for web and mobile applications, ensuring high quality standards and optimal testing efficiency.

As a QA Engineer, you'll ensure the quality and performance of mobile applications through automated and manual testing, working with cross-functional teams to identify issues and implement testing strategies.

Lead quality strategy for card processing: design layered quality sensors, improve E2E test suites, review PRs for test intent, identify coverage gaps, build load/performance frameworks, explore chaos engineering, and ensure auditability of AI-generated diffs and checks.

As a QA Engineer, you will ensure product quality, design and execute automated tests, collaborate with teams, and participate in all development phases.

Support QA engineers by testing features, designing and executing test cases, documenting and tracking bugs, collaborating with developers and BAs, and participating in sprint planning to improve product quality.

As a QA Engineer, you will ensure high product quality standards, develop automated tests, identify risks, analyze results, and collaborate in an Agile environment.

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.

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.

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.

Lead QA strategy for Redtrust's digital-signature and certificate-management platform: define risk-based test strategy, prioritize and convert manual regression to automation-first, design test plans, coordinate Product/Development/QA, track defects and quality metrics, mentor junior QA, and drive CI/CD test integration and continuous QA improvements.

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 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.

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

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.

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.