Top QA Engineer Jobs in Portugal

As a Quality Assurance Engineer, you will lead game testing, improve quality processes, coordinate with teams, and address game defects.

Design and execute performance, load, and scalability tests for enterprise backup/data protection products; build and maintain realistic test labs and topologies; identify bottlenecks and system limits; analyze results and drive remediation with developers, QA, and product managers; own environment creation, configuration, monitoring, and support root-cause investigations reported by support and customers.

Lead QA automation and AI testing strategy for securities post-trade systems. Define test approach, estimate and prioritize automation/AI tests, integrate testing into CI/CD, monitor KPIs and risks, provide technical guidance, align QA tools and quality standards across teams.

As a QA Engineer, you'll ensure quality in cloud applications by designing and executing tests, documenting processes, and performing regression testing to maintain stability and user experience.

Define and evolve the QA Test Center technical strategy, design and deploy QA tooling and automation pipelines, support sales with technical materials and client assessments, adapt solutions to client stacks, and act as technical reference for delivery teams while tracking QA and AI trends.

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.

The QA Automation Engineer will design, develop, and maintain automated tests for web, mobile, and APIs, ensuring quality through CI/CD integration and defect tracking.

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.

Lead manual QA for Paper.io 2 mobile game: design test plans, find and document defects, create QA processes/tools, track live KPIs, collaborate with design/dev teams, and support quality initiatives across studios.

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.

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.

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 within an established automation framework. Increase test coverage, add new tests, improve stability, address test tech debt, design test strategies, and integrate automated tests into CI/CD. Collaborate with developers and stakeholders, identify bottlenecks, improve QA processes, and perform performance and API testing to ensure product quality in a payments/B2B fintech context.

The Backend QA Engineer will ensure the reliability and performance of backend systems through testing APIs and databases, and will collaborate with engineering teams to maintain high quality standards.

As a QA Automation Engineer, you will drive the software testing lifecycle, collaborate with teams, execute testing, and ensure quality deliverables for mobile applications.

As a QA Engineer, you will ensure the quality and usability of applications through manual and functional testing, working closely with cross-functional teams to detect bugs and validate software before deployment.

As a QA Automation Engineer, you'll build and maintain automated test frameworks, execute tests, and enhance software quality across web and mobile platforms.

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.

Develop, maintain, and execute automated tests (functional, integration, regression). Log and track defects, collaborate with developers and analysts, and improve testing processes to deliver reliable banking software.

The Senior QA Engineer will co-design test strategies, implement automated tests in Kotlin, and improve testing pipelines within a collaborative engineering team.

As a Senior QA Engineer, you will design and implement automated tests, collaborate on test strategies, and enhance testing pipelines while ensuring a user-centric approach in a cloud-native communication platform.

The General Automation QA Engineer will perform both manual and automated testing, improve product quality, write tests, analyze requirements, and contribute to test strategies.