Sr. Design Engineer-HVBMS

Job description

Job Description

Lead OR Sr. Design Engineer - HVBMSRole SummaryThe HVBMS Design Engineer will be responsible for architecting, developing, and validating high-voltage battery management systems (400V–1500V) for advanced energy storage and electrification platforms.

This role demands mastery of circuit design, embedded control, functional safety, and system integration, with a strong emphasis on technical excellence and compliance.---Core Responsibilities· System Architectureo Define HVBMS topology, sensing, isolation, and protection strategies for large-format Li-ion packs.o

• Develop redundancy and fail-safe mechanisms aligned with ISO 26262 ASIL-D requirements.o Architect communication interfaces (CAN FD, Ethernet, ISO 15118) for seamless integration with vehicle/grid controllers.· Hardware Designo
• Design precision measurement circuits for voltage, current, and temperature sensing with high CMRR and isolation.o
• Develop balancing circuits (active/passive) optimized for efficiency and thermal performance.o Specify high-voltage contactors, pre-charge circuits, and solid-state switching elements.· Software & Algorithmso Implement SOC, SOH, SOP estimation using Kalman filters, neural networks, or equivalent advanced methods.o
• Develop real-time fault detection and diagnostic algorithms for over-voltage, over-current, thermal runaway, and isolation faults.o
• Ensure compliance with cybersecurity standards (ISO/SAE 21434), and real-time OS constraints.· Validation & Testingo Conduct HIL/SIL simulations for algorithm robustness and edge-case scenarios.o EMC/EMI compliance validation.o Lead FMEA, FTA, and DFMEA processes for risk mitigation.· Cross-disciplinary Integrationo
• Collaborate with mechanical engineers on pack enclosure, cooling, and vibration isolation.o Interface with inverter and charger teams to ensure seamless HV system operation.o
• Provide technical documentation for certification bodies and customer audits.---Required Qualifications· Master’s/PhD in Electrical Engineering, Power Electronics, or Control Systems.· 5+ years of hands-on experience in HVBMS design and validation.· Expertise in Li-ion chemistries (NMC, LFP, solid-state) and degradation modelling.· Strong command of embedded C/C++, MATLAB/Simulink, and model-based design workflows.· Proven track record with ISO 26262, IEC 61508, UL 2580, SAE J2464 compliance projects.---Preferred Expertise· Knowledge of advanced balancing (bi-directional active balancing, switched capacitor).· Familiarity with CFD-based thermal modelling for battery packs.· Hands-on experience with PCB design (Altium), circuit simulation (PSpice), and CAN tools (CANalyzer, Vector).---Key Attributes· Precision-driven, safety-first mindset.· Ability to synthesize complex technical requirements into robust designs.· Strong analytical and documentation skills for technical audiences.· Innovative thinker with a focus on reliability and scalability.---

Qualifications

Bachelor of Technology (BTech)