System Design Engineer

12V Systems Design Engineer is a key contributor within the Product Development & Technology (PDT) organization, operating in the Electrified Hardware Engineering (EHE) and Hardware Engineering (HWE) perimeter. The role supports the design, integration, validation, and vehicle‑level performance of the 12V Energy Provider subsystem
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This position is responsible for defining robust, cost‑effective, and innovative 12V electrical system solutions by ensuring alignment between vehicle needs, system and subsystem strategies, and architectural constraints. The engineer works cross‑functionally on system architecture, requirements definition, component sizing, vehicle testing, diagnostics, and validation to ensure correct vehicle behavior and customer satisfaction.

Hands‑on experience with vehicle electrical systems, communication networks, testing tools, and data analysis is essential.

• Gather, analyze, and consolidate stakeholder inputs from vehicle systems and 12V sub‑domains
• Identify and manage environmental, operational, and architectural constraints
• Define and manage upper‑level 12V system requirements, constraints, and use cases
• Define functional system architectures aligned with Quality, Cost, Timing, and Performance (QCTP) objectives
• Perform functional decomposition and allocation across hardware, software, and processes
• Provide system‑level synthesis of system behavior, operating strategies, and vehicle interactions

• Perform battery sizing calculations based on vehicle load profiles, duty cycles, and customer usage scenarios
• Perform alternator sizing and capability analysis to ensure adequate power generation under all operating conditions
• Conduct Ignition Off Draw (IOD) and parasitic load analysis, including network and module sleep behavior
• Support definition and optimization of charging and power management strategies

• Define high‑level functional and technical requirements for hardware, software, and validation teams
• Ensure full requirements traceability throughout the development lifecycle
• Ensure clear understanding, alignment, and acceptance of system requirements across stakeholders
• Support diagnostics and functional behavior definition related to the 12V system

• Define and execute system‑level and vehicle‑level validation plans for the 12V electrical system
• Plan, set up, and conduct vehicle tests covering:
  • 12V lead‑acid and future lithium battery systems
  • Alternators and charging systems
  • 120V / 230V DC/AC inverters
  • Battery sensors and intelligent power components
  • LIN‑ and CAN‑based loads and control modules
  • Execute testing under various environmental and operating conditions (hot, cold, key on/off, high load, charging, sleep modes)
• Review, approve, and document system validation and test results
• Ensure system strategies are correctly implemented and validated to achieve expected vehicle behavior

• Use CANoe and CANalyzer to analyze CAN and LIN communication, signal behavior, and diagnostics
• Validate network behavior during key‑on, key‑off, and sleep transitions
• Diagnose LIN communication issues including wake‑up behavior, timeouts, and configuration issues
• Use PICO Scope and oscilloscopes to analyze voltage, current, ripple, transients, and communication signals
• Perform root cause analysis of electrical, communication, and sleep current issues
• Track, manage, and resolve issues and deviations across the development lifecycle

• Work closely with systems, software, hardware, and validation teams to align architecture and requirements
• Support supplier coordination for batteries, alternators, inverters, sensors, and LIN/CAN‑controlled components
• Participate in design reviews, technical reviews, issue resolution meetings, and program milestones

• Create and maintain technical documentation including system analyses, requirements, test plans, and reports
• Support compliance with internal development processes, system engineering methodologies, and…