Test Engineer (m/f/d) Bidirectional Charging and Home Energy Solution

• Help shape our vision of an emission-free energy and mobility future 
• High levelof responsibility and rapid development in a growing and innovative company
• Open, diverse & international team
• Flexible working hours and additional vacation days
• Mobile working from home and 20 days in other European countries 
• Choice between the latest Apple and Dell IT equipment
• Subsidy for Deutschlandticket job
• Wellpass membership
• Lease of your preferred car and bike via FINN orJobRad
• Modern office with good public transport connections
• And much more!

As Test Engineer, you will ensure the reliability and performance of our smart charging solutions by validating end-to-end system behaviour across the entire ecosystem (EV, EVSE, CPMS, and user applications). This is not a pure testing role. You will own the full testing lifecycle - from understanding system requirements and designing comprehensive test strategies to executing validation activities and ensuring that identified issues are resolved effectively, guaranteeing high-quality and robust software releases.

• Understand end-to-end requirements of the bidirectional (BiDi) charging ecosystem (EV, EVSE, CPMS, user applications) through close collaboration with engineers and development teams
• Design, build, and maintain a technical test setup for integration with residential energy systems, including PV simulation, home battery storage, and related components.
• Design and develop comprehensive test cases covering functional requirements, edge cases, and corner scenarios 
• Establish, maintain, and continuously refine detailed test plans to support timely and reliable software releases
• Execute end-to-end testing activities (functional, regression, and conformance) and ensure clear and timely reporting of test results
• Create, document, and manage defect tickets, including initial analysis, and coordinate with development teams across multiple partners

• Bachelor’s degree in Engineering or a related technical field, with a focus on electrical and energy engineering 
• Preferred: Technical qualification with TREI certification for installation of the test setup
• Experience in testing environments, with a focus on smart charging technologies; ISTQB certification is considered a plus 
• Familiarity with ISO 15118, OCPP and Modbus protocols is a plus
• Fluency in English and German (written and spoken)