Charging Performance Engineer

Responsibilities

• Take end-to-end ownership of charging performance testing quality for HPC chargers (≥350 kW)
• Define and improve end-to-end charging test scenarios, including manual and partially automated regression testing
• Perform conformance and interoperability testing for EV-charger communication protocols (CCS Type 2, ISO 15118, DIN SPEC 70121)
• Analyze and debug charging issues using pcap traces (Wireshark), charger logs, and backend communication logs (OCPP, OCPI/OICP)
• Work hands-on with testing and simulation tools, including PLC communication boards and vehicle emulators
• Collaborate with charger manufacturers, backend teams, and OEMs to align on technical improvements
• Contribute to testing standards and provide data-driven recommendations for software quality and interoperability

Requirements

• Degree in Electrical Engineering, Energy Engineering, Industrial Engineering, or a comparable technical field
• Minimum 2–3 years of experience in testing, ideally within the electromobility sector
• Solid understanding of quality assurance principles and testing processes
• Familiarity with charging communication standards including ISO 15118-2/20, DIN SPEC 70121, and OCPP 1.6/2.1
• Experience with protocol-level debugging using Wireshark and pcap traces
• Strong communication skills in English; basic German knowledge is a plus
• Ability to work effectively in international, cross-functional environments

About the Company

IONITY is a joint venture of the car manufacturers BMW Group, Ford Motor Company, Hyundai Motor Group, Kia, Mercedes-Benz AG and Volkswagen Group with Audi and Porsche, along with BlackRocks Climate Infrastructure Platform as financial investor.