Top QA Engineer Jobs in Lisbon

Design, build, and maintain scalable test automation frameworks and CI/CD-integrated test suites for web, mobile, and backend systems. Test REST and GraphQL APIs, reduce flakiness, apply risk-based testing, improve pipelines and tooling, and mentor engineering teams to raise delivery quality and speed.

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.

Own and improve product quality by designing, implementing, and maintaining automated API and UI tests. Collaborate with developers and product managers on test approaches, review test cases, ensure reliability and stability of automation, and provide insights to enhance product quality.

The Sr. QA Auditor conducts independent audits for compliance with regulations, manages quality issues, and provides consultation on policies and procedures in the pharmaceutical industry.

Define test strategies and plans; design, execute and maintain manual test cases; report, track and analyze defects; support UAT and business stakeholders; ensure traceability and QA process improvements; collaborate with development/product teams; and progressively move from manual testing to test automation and CI/CD integration.

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

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.

Design and execute performance, load, and scalability tests; build and maintain enterprise-grade test environments; identify bottlenecks; collaborate with developers, QA, and product managers; perform root-cause analysis and own performance test lab creation, configuration, and monitoring.

Embedded in agile scrum teams to design, document, and execute manual and automated tests for ecommerce platforms. Build Playwright automation in JavaScript/TypeScript, integrate tests into CI/CD, perform API and backend testing, analyse logs and data, report defects, join client-facing meetings, and drive process and tooling improvements to improve quality.

Lead end-to-end quality for features, test backend APIs and data flows, validate data integrity across services, perform exploratory testing and root-cause analysis, and write/maintain automated tests while collaborating with developers on design and testability.

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 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.

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.

The Senior SW QA Engineer will collaboratively ensure high quality in optical networking solutions through automated testing, Agile ceremonies, and continuous improvement of QA practices.

Landskill seeks a QA Engineer to develop automation tests, document processes, and manage test cases in a supportive environment.

The QA Manager will lead QA teams, design and implement test cases, and ensure quality through Agile methodologies, requiring 5 years of QA and 2 years of leadership experience.

The QA Analyst is responsible for designing test cases, managing defects, and ensuring quality through various testing tools and methodologies in an Agile environment.

Manual QA Engineer responsible for end-to-end manual testing of a SaaS cybersecurity product across UI, APIs, integrations and backend workflows. Analyze requirements, create and maintain test documentation in Zephyr, validate data via PostgreSQL queries, review automated test results, report bugs, and suggest product/documentation improvements while collaborating with PO/PM and dev teams.

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.

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.

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

Embed within an agile engineering team to design, build, and maintain manual and automated test suites and frameworks. Advocate quality practices, participate in sprint rituals, author test documentation, analyze defects, and communicate findings to improve platform reliability and scalability across multiple markets.

Embed within an agile engineering team to design, build and maintain manual and automated end-to-end tests and frameworks (Playwright/Postman/JS). Advocate QA best practices, author test plans and documentation, analyse defects, participate in sprint rituals, and mentor engineers to ensure platform reliability across multiple markets for a 4-month maternity cover.