Role: IT Test Roles - UAT Tester / Business Tester As part of the IT project SPACE@HAW (introduction of a new M2C (meter to cash) IT landscape), extensive software tests of the new IT systems in the grid connection process environment for our electricity and gas customers and feeders will be carried out in the period April 2025 to September 2025. For our internal test team, we are looking for a full-time tester who will test individual measurement concepts E2E over different systems/frontends and roles in the planned test cycles via defined test scripts in JIRA. The test is carried out via -specific IT applications on clients of the Hansewerk Group, starting with the incoming customer enquiry and continuing with the selection of measurement concepts, devices and tariffs to the installation of measuring instruments and the creation of a billable and accountable construct in SAP/4. The availability of the tester is 100% necessary during this time and should also be planned on site in premises in Quickborn or Rendsburg. Description of services: - Coaching in the creation and maintenance of test cases - Advice on the creation and maintenance of test case catalogs - Execution of cyclic and ADHOC tests in different IT systems for grid connection processes in the energy industry - Audit-proof documentation of test results - Analysis and tracking and retesting of defects - Work closely with developers to analyze and fix errors - Ensure system configurations are aligned across development, test, and production environments