Fullstack engineer

The Test Experience team manages the test infrastructure and tooling that underpin the client platforms. Our mission is to provide a reliable, consistent, and efficient testing ecosystem that enables client engineers to validate their code with confidence and ship high-quality products. We’re continually evolving our systems to improve developer experience, reliability, and automation through well-designed services, tooling, documentation, and support.We are seeking a platform generalist with Full Stack & Data engineering experience to join our Test Experience squad. In this role, you will leverage your curiosity and adaptability to build test infrastructure for their clients. This includes test frameworks for (Android, iOS, C++, Web), data pipelines, backend services and Backstage plugins.What You’ll DoShape and drive the technical roadmap of our test infrastructure environmentImprove testing practices across the clients ecosystemSupport engineers across the client to drive test automation and help remediate debugging failuresWho you areProficient in Java backend services, preferably using Apollo with PostgreSQL databases.Proficient in web test tooling, preferably using Mocha, React, and WebdriverIO.An understanding of CI pipelines and infrastructure tools like Bazel and Git is valued.Experienced with writing and maintaining automated tests.Proficient in data engineering, preferably using Scala and Scio.Comfortable completing tasks in different domains and codebases (Android, iOS, C++, Web, Bash, Python, etc).Strong understanding of software architecture and design principles.Familiar with designing scalable and maintainable testing systems and infrastructure.Comfortable leveraging AI agents, such as Claude or Cursors, to enhance development and tooling.

Period: 2026-04-06 to 2027-01-05

Workplace: Sweden, Stockholm.