Senior QA Automation Tester

Lisbon, Poland Posted on March 5, 2026

Job Description

We are looking for a Senior QA Tester Engineer to join our team and support the quality and reliability of a cross-media measurement platform developed in partnership with industry leaders such as Google, Meta, TikTok, and Amazon. This role focuses on test automation, API testing, and data validation within a modern API-first and cloud-native architecture. The engineer will work closely with development teams to ensure platform reliability and embed quality into the CI/CD pipeline. Please find the details below:

Location

Lisbon, Braga, or Coimbra (hybrid)

Need to go to the office 2 times a week.

Candidates must be living in Portugal.

Industry: International Marketing & Media Industry Organization

Language Requirements

Minimum English level: B2 (fluency required)

Tech Stack

Languages & Frameworks: Python, JavaScript, TypeScript, NestJS

Automation & Testing: Playwright, Cypress, Puppeteer, Supertest, API testing, Test automation frameworks

Data & Databases: SQL, data validation, analytics pipelines

Cloud & DevOps: Google Cloud Platform (GCP), Docker, Kubernetes, CI/CD (Cloud Build)

Other / Nice to Have: Generative AI tools for testing, API-first architectures, Microservices

Key Responsibilities:

Design, develop, and maintain automated test suites to ensure strong regression coverage.

Implement API-level testing (contract, integration, and component testing) for microservices and service layers.

Develop automated checks to validate complex data pipelines and ensure the accuracy of measurement outputs.

Maintain and improve the automation ecosystem using tools such as Playwright, Supertest (NestJS), and GCP Cloud Build.

Collaborate with software engineers to integrate testing into development lifecycle and CI/CD workflows.

Monitor and improve quality metrics such as test stability, execution time, and coverage.

Required Skills:

Strong experience with test automation frameworks for web applications and distributed systems.

Solid experience testing RESTful APIs and microservices.

Hands-on experience with Playwright, Cypress, Puppeteer, or similar testing tools.

Strong programming skills in JavaScript or TypeScript.

Good knowledge of SQL and experience validating data-driven platforms.

Experience integrating automated tests into CI/CD pipelines.

Experience working with containerized environments.

Nice to Have:

Experience with Google Cloud Platform (GCP) or other cloud environments.

Experience testing data pipelines or analytics platforms.

Exposure to Generative AI tools for test generation or synthetic data creation.

Experience contributing to open-source projects or familiarity with WFA standards.

About emagine Polska

emagine is a high-end business & IT consulting company challenging the way businesses leverage high-end expertise. Enabled by our vast network of expert consultants, we tailor our services to the unique needs of each business, powering progress, solving challenges, and delivering real results. As the world evolves, scalability becomes increasingly important in modern, technology-driven organizations. And it is around this critical need that emagine stands out with a unique business model and delivery capacity. With emagine, companies gain the flexibility needed to navigate and succeed in a complex and ever-changing technological landscape. Through a seamless and tailored delivery model, we help you scale your business. We help organizations across all industries and sectors; these are our services: • Team extension: Scale with dedicated consultants on time & material • Nearshoring as a Service: Leverage a fully scalable development department in Poland • Teams: Power up with a dedicated team to help you build, develop and execute your projects • Managed Services: Let us tailor and manage your projects, delivering on your specific requirements and needs emagine was founded in 1989 and has a long track record of delivering expertise and business impact for blue-chip companies across Europe. Today, we are 900+ permanent employees working from departments in 10 countries. Furthermore, we own three state-of-the-art nearshore centres in Poland and one offshore centre in India. With 40.000 experts in our network and 4500+ partnered consultants on active contracts, we currently help our 500+ clients worldwide with high-end expertise.

Industry: IT Services and IT Consulting