QA Automation Engineer

SUMMARY 💰 130 - 150 PLN/h (B2B) 📍 Remote 100% 📆 Duration: Until 16.04.2027 💼 Senior Project Join a project focused on API migration and validation, ensuring functional and performance parity between existing MuleSoft APIs and their new implementations in Quickwork. The role involves designing and executing automated API tests, validating end-to-end business flows, conducting performance tests, and supporting User Acceptance Testing (UAT). The main objective is to ensure that migrated APIs behave consistently, meet performance requirements, and do not negatively impact existing integrations. You will Design and execute automated API tests using Postman and NewmanCompare API responses between MuleSoft and Quickwork to verify functional parityDevelop automated tests using RestAssured, pytest-requests, or equivalent toolsPerform performance testing using JMeter, k6, or GatlingDesign regression and end-to-end tests for business flowsIntegrate automated tests into GitLab CI/CD pipelinesExecute UAT tests and document resultsAnalyse API performance and investigate defects Must have At least 5 years of experience in API integration testingPractical experience with API migration or parity testingStrong knowledge of Postman and NewmanExperience with RestAssured, pytest-requests, or equivalent toolsHands-on experience with JMeter, k6, or GatlingExperience with GitLab CI/CD and test automationKnowledge of OpenAPI 3.0 and API test designExperience with regression testing and end-to-end scenariosAbility to analyse test results and prepare test reportsFluent English and Polish Nice to have Experience with MuleSoft and QuickworkKnowledge of Pact or other contract testing toolsExperience with TM Forum Open APIs or MEF Sonata APIsGerman language skills Our offer Relocation package (4500 PLN total value), paid in three installments (1500 PLN per month) in case your permanent presence in the office is mandatory, and you need to relocate from another cityBenefits: Extended medical care (over 2000 medical facilities in Poland, 80 in Kraków) for you and your family; Multisport Benefit card; life insurance