[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Larsen & Toubro jobs](https://jobs.opennash.com/companies/larsen-toubro/) · [Search jobs](/search/) Larsen & Toubro · India>Karnataka>Bengaluru # Sr. Design Engineer-HVBMS India>Karnataka>Bengaluru Senior individual contributor Design Listed on Larsen & Toubro’s official careers site. Posted October 7, 2026. Check that it is still open and apply there. [Apply on Larsen & Toubro’s careers site →](https://larsentoubrocareers.peoplestrong.com/job/detail/LNT_-D_1882180) [OpenNash Jobs](https://jobs.opennash.com/) / [Larsen & Toubro](https://jobs.opennash.com/companies/larsen-toubro/) / 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) ## At a glance - Posted by the employer: Oct 7, 2026 - First seen by OpenNash: Oct 12, 2026 - Last checked: Oct 19, 2026 - Listed for: 12 days - Location: India>Karnataka>Bengaluru[Apply on Larsen & Toubro’s careers site →](https://larsentoubrocareers.peoplestrong.com/job/detail/LNT_-D_1882180) ## More jobs at Larsen & Toubro ### [Algorithm Architect - ADAS1](https://jobs.opennash.com/companies/larsen-toubro/jobs/4ce8e1e3dab54c64f37b/) India>Karnataka>Bengaluru ### [BESS Electrical Design Engineer](https://jobs.opennash.com/companies/larsen-toubro/jobs/1447a6cfb07abaa2026d/) India>Karnataka>Bengaluru ### [BESS Mechanical Design](https://jobs.opennash.com/companies/larsen-toubro/jobs/9f9ec11cccd839f4ec23/) India>Karnataka>Bengaluru ### [BESS Mechanical Design Engineer](https://jobs.opennash.com/companies/larsen-toubro/jobs/42381820d8512e380c46/) India>Karnataka>Bengaluru ### [Battery Pack Design Engineer](https://jobs.opennash.com/companies/larsen-toubro/jobs/4f8f374569cd9eb2d7dd/) India>Karnataka>Bengaluru ## Similar jobs at other companies ### [Senior Staff Datapath Design Engineer and Circuit Design Engineer, VLSI Design Engineering](https://jobs.opennash.com/companies/sandisk/jobs/9c9c9ee8de475c168163/) Sandisk ### [Senior Technologist Datapath Design Engineer and Circuit Design Engineer, VLSI Design Engineering](https://jobs.opennash.com/companies/sandisk/jobs/04c89e21c7a143aa3d7b/) Sandisk ### [Staff / Senior Staff Engineer Digital Design (RTL Design)](https://jobs.opennash.com/companies/infineon-technologies/jobs/bcdb3b7a61b92eede1d2/) Infineon Technologies · Singapore ### [Electrical Design Engineer - Substation Bengaluru, Karnataka Bengaluru, Karnataka ENGINEERING / DESIGN STUDIES / METHODS ENGINEERING / DESIGN STUDIES / METHODS Permanent](https://jobs.opennash.com/companies/vinci/jobs/226b30542f183b716535/) VINCI · Bengaluru, Karnataka ### [Senior Design Engineer - UGC Scotland Gate, England Scotland Gate, England ENGINEERING / DESIGN STUDIES / METHODS ENGINEERING / DESIGN STUDIES / METHODS](https://jobs.opennash.com/companies/vinci/jobs/e05c4ba864beb3623d58/) VINCI · Scotland Gate, England OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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