HV Technical Specialist – Battery & Component Analysis

T&S (Technology & Strategy); Frankfurt; On-site; EUR 80,000 - 140,000; Full time

Job summary

We are looking for a talented HV Technical Specialist – Battery & Component Analysis to join our automotive engineering team in Frankfurt. You will investigate and resolve failures in high-voltage battery systems and electrified powertrain components, supporting warranty, quality, and engineering activities in an international environment.

Experience with HV systems, battery tech, power electronics, and automotive diagnostics is essential.

Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Automotive Engineering, Mechatronics, Power Electronics, or a related field.
• Several years of professional experience in battery systems, electrified powertrain systems, quality engineering, diagnostics, or failure analysis within the automotive industry.
• Valid High Voltage qualification (e.g. DGUV 209-093 Level 3S or equivalent).
• Hands-on experience opening, inspecting, diagnosing, and repairing high-voltage battery systems.
• Strong knowledge of lithium-ion battery technologies and Battery Management Systems (BMS).
• Practical experience with inverters, on-board chargers (OBC), DC/DC converters, and electric drive systems.
• Experience performing root cause analysis and technical investigations on complex failures.
• Knowledge of automotive diagnostic methodologies and tools.
• Experience analyzing vehicle measurement data, fault memory data, and communication logs.
• Strong problem-solving, analytical, and reporting skills.
• Ability to work independently and within multidisciplinary international teams.
• Willingness to travel when required.
• Fluent English communication skills, both written and spoken.

Responsibilities

• Perform technical analysis and root cause investigations on high-voltage batteries and electrified powertrain components.
• Diagnose failures related to Battery Management Systems (BMS), inverters, on-board chargers (OBC), DC/DC converters, and electric drive systems.
• Safely open, inspect, and analyze high-voltage battery packs, modules, and components.
• Execute electrical, mechanical, and functional testing on returned components and vehicles.
• Analyze diagnostic logs, measurement data, and CAN communication traces to identify failure mechanisms.
• Support warranty and field quality investigations by providing technical findings and recommendations.
• Lead and contribute to structured Root Cause Analysis (RCA) activities using industry-standard problem-solving methodologies.
• Collaborate with design, validation, manufacturing, supplier quality, and service teams to drive corrective actions.
• Support technical discussions with suppliers regarding component failures and quality concerns.
• Prepare detailed technical reports documenting analysis results, conclusions, and corrective action proposals.
• Contribute to continuous improvement initiatives focused on product quality, reliability, and customer satisfaction.
• Support vehicle diagnostics and troubleshooting activities on electrified vehicle platforms.
• Participate in cross-functional and international project teams.

Skills

Root cause analysis

HV systems

BMS

Power electronics

Diagnostics

CAN traces

Cross-functional collaboration

Independent work

Education

Bachelor’s or Master’s degree in Electrical/Automotive/Mechatronics/Power Electronics

Tools

CANoe

CANalyzer

CANape

JIRA

Confluence

VIDA

GNDS

DSA

Job description

We are looking for a talented and experienced HV Technical Specialist – Battery & Component Analysis to join our customer's engineering team in the automotive sector. In this role, you will be responsible for the investigation, diagnosis, analysis, and resolution of failures related to high-voltage battery systems and electrified powertrain components. You will support warranty, quality, and engineering activities by performing detailed root cause investigations on returned parts and vehicles, while working closely with development, quality, manufacturing, and aftersales teams in an international environment. The position requires strong expertise in high-voltage systems, battery technologies, power electronics, and automotive diagnostics.

Responsibilities

• Perform technical analysis and root cause investigations on high-voltage batteries and electrified powertrain components.
• Diagnose failures related to Battery Management Systems (BMS), inverters, on-board chargers (OBC), DC/DC converters, and electric drive systems.
• Safely open, inspect, and analyze high-voltage battery packs, modules, and components.
• Execute electrical, mechanical, and functional testing on returned components and vehicles.
• Analyze diagnostic logs, measurement data, and CAN communication traces to identify failure mechanisms.
• Support warranty and field quality investigations by providing technical findings and recommendations.
• Lead and contribute to structured Root Cause Analysis (RCA) activities using industry-standard problem-solving methodologies.
• Collaborate with design, validation, manufacturing, supplier quality, and service teams to drive corrective actions.
• Support technical discussions with suppliers regarding component failures and quality concerns.
• Prepare detailed technical reports documenting analysis results, conclusions, and corrective action proposals.
• Contribute to continuous improvement initiatives focused on product quality, reliability, and customer satisfaction.
• Support vehicle diagnostics and troubleshooting activities on electrified vehicle platforms.
• Participate in cross-functional and international project teams.

Required Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Automotive Engineering, Mechatronics, Power Electronics, or a related technical field.
• Several years of professional experience in battery systems, electrified powertrain systems, quality engineering, diagnostics, or failure analysis within the automotive industry.
• Valid High Voltage qualification (e.g. DGUV 209-093 Level 3S or equivalent).
• Hands-on experience opening, inspecting, diagnosing, and repairing high-voltage battery systems.
• Strong knowledge of lithium-ion battery technologies and Battery Management Systems (BMS).
• Practical experience with inverters, on-board chargers (OBC), DC/DC converters, and electric drive systems.
• Experience performing root cause analysis and technical investigations on complex failures.
• Knowledge of automotive diagnostic methodologies and tools.
• Experience analyzing vehicle measurement data, fault memory data, and communication logs.
• Strong problem-solving, analytical, and reporting skills.
• Ability to work independently and within multidisciplinary international teams.
• Willingness to travel when required.
• Fluent English communication skills, both written and spoken.

Nice-to-Have

• Experience with Vector tools such as CANoe, CANalyzer, or CANape.
• Knowledge of warranty analysis and field quality processes.
• Experience using JIRA, Confluence, or similar engineering tracking tools.
• Knowledge of structured problem-solving methodologies such as 8D, 5 Whys, and Ishikawa.
• Experience working with Volvo, Polestar, Geely, or other electrified vehicle platforms.
• Knowledge of diagnostic and service tools such as VIDA, GNDS, or DSA.
• Experience working directly with battery cell, module, and pack-level analysis.
• German and/or Chinese language skills.
• Background in automotive OEMs, Tier-1 suppliers, battery manufacturers, or e-mobility projects.
• Experience working in multicultural and geographically distributed teams.