Job Title: Software Development Engineer in Test (SDET)
Location: Lisbon, Portugal
Work Regime: Full-time & Hybrid
1 time per week for the 1st month;
1-2 days a month after the 1st month.
Overview / Summary:
We are looking for a Software Development Engineer in Test (SDET) to strengthen the quality of our partners platform by building scalable test automation and tooling with
a strong focus on backend services and APIs. You will work alongside engineers, product managers, and DevOps to ensure every release is reliable, observable, and tested end-to-end.
Responsibilities and Tasks:
* Design and implement automated API and integration tests for backend microservices;
* Develop reusable test frameworks and libraries in collaboration with backend engineers;
* Maintain test coverage across multiple services, ensuring data consistency and reliability;
* Contribute to CI/CD pipelines, integrating automated tests to run at every stage (build, deploy, release);
* Investigate and reproduce complex backend issues, analyzing logs, metrics, and traces to isolate root causes;
* Continuously improve test infrastructure and tooling with a focus on scalability and maintainability.
Requirements
Mandatory Requirements:
* 2–4 years of experience in software testing or automation engineering, with strong backend/API focus;
* Programming experience in at least one backend language (etc. Java, Kotlin, Go);
* Strong understanding of REST/GraphQL APIs, messaging systems, and event-driven architectures;
* Hands-on experience with API testing frameworks (e.g., REST-assured, Ktor, Playwright API,Postman/Newman);
* Experience with CI/CD systems (GitHub Actions, GitLab CI, Jenkins) and version control(Git);
* Practical knowledge of containerized environments (Docker, Kubernetes);
* Strong debugging skills using logs, metrics, and distributed tracing (Datadog,OpenTelemetry, Grafana);
* Solid understanding of QA methodologies (test strategies, defect lifecycle, coverage analysis);
* Fluent English.
Complementary Requirements:
* Experience with service mocking and test doubles for distributed systems;
* Contributions to test frameworks or open-source QA tooling;
* Exposure to event streaming platforms (Kafka, RabbitMQ) and testing asynchronous flows.
Benefits
Important:
* Our company does not sponsor work visas or work permits. All applicants must have the legal right to work in the country where the position is based.
Only candidates who meet the required qualifications and match the profile requested by our clients will be contacted.
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