QA Engineer – Streaming

4 days ago

Stockholm, Stockholm, Sweden Rasulson Consulting Full time 900,000 - 1,200,000 per year
Role description

You will ensure end-to-end quality for recommendation, experimentation, and real-time analytics services in a microservice, event-driven environment. The scope spans data ingestion through to client experience on mobile and web, with a focus on robust automation, clear release criteria, and measurable outcomes. Full-time assignment.

Responsibilities
  • Define and execute test strategy across data pipelines, services, and client applications.
  • Validate experiments and A/B flows, including targeting, telemetry, and result integrity.
  • Test microservices and streaming events (e.g., Kafka/Kinesis), including contract tests.
  • Build and maintain automated tests in CI/CD for web and mobile.
  • Drive test planning, risk analysis, and release readiness in cross-functional teams.
  • Monitor data quality and system health using modern observability practices.
  • Produce clear defect reports and test summaries.
Requirements
  • 4+ years of QA/testing experience in distributed systems.
  • Strong API and contract testing skills; experience with Postman/newman and Pact or similar.
  • Test automation for web and mobile: Cypress or Playwright; Appium, XCUITest, or Espresso.
  • Solid understanding of observability and logging (Grafana, Prometheus, OpenTelemetry).
  • Comfortable with Jira/Confluence and concise, evidence-based reporting.
  • Experience testing microservices and event streams (Kafka/Kinesis).
Meriting
  • Hands-on with A/B platforms, feature flags, and experiment analysis.
  • Familiarity with data-pipeline tooling (dbt, Airflow) and SQL/Python.
  • Performance and network testing for media playback and CDN behaviors.
Start/Duration

Start: ASAP or by agreement

Duration: by agreement

Location

Stockholm

About Rasulson Consulting

Rasulson Consulting is a specialized staffing and recruitment firm within the IT sector. We partner with established technology companies as well as innovative startups to offer attractive career opportunities for professionals looking to grow within digital development and IT. With our strong technical expertise and extensive network, we effectively match the right consultant with the right assignment. At Rasulson Consulting, you will receive personalized guidance, ongoing feedback, and the opportunity to take the next step in your career.

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