Sr. BMS Engineer – HW Design

Supernal is at the forefront of creating emerging mobility solutions that will foster the development of human-centered cities. We are designing a completely new electric vertical take-off and landing (eVTOL) aircraft tailored to the mobility needs of future cities. This allows passengers a seamless intermodal journey that safely transports them to their final destination. We fuse research in autonomy, robotics, aviation and services to define a new category of mobility for the world’s communities. We believe in creative thinking and collaboration to help build a better mobility experience for everyone, improving people’s ability to move – whether for work or play.

What we do:

The Sr. Battery Management System Engineer - HW Design focuses on architecting, design & development of BMS HW (hardware) and electrical systems at Module level and Pack level from concept to completion for our Energy Storage Systems (ESS). The role is responsible for detailed HW design, design analysis, prototype verification and production support for testers and product manufacturability. This role works closely with other SW / Algo / Cell Engineers in the Battery team and other multi-functional team members to develop SW requirements and to support integration testing at the Powertrain, ESS system, or Cell module level.

This position will be required to work on-site 5 days a week.

What you can do:

• Responsible for the overall architecture and validation of high-voltage battery management system (HVBMS) at module and system level
• Responsible for functional safety and redundancy architecture of HVBMS
• Responsible for interface definition development between peer sub systems
• Develop architectures for HVBMS for new and innovative ESS solutions
• Ensure requirement traceability between BMS and other higher and lower-level system
• Develop and release board level and system level requirement specifications
• Simulate ESS and BMS using MATLAB/ Simulink and linking with aircraft level models and hardware-in-the-loop (HIL) systems for parallel validation of BMS functionality
• Analyze the schematic and layout designs to verify its conformance to the design requirements
• Conduct and participate in design reviews, incorporate team feedback, and release design documents
• Develop validation requirements for HVBMS and approve validation results confirming agreed upon performance
• May require up to 25% of domestic and international travel
• Other duties as assigned

What you can contribute:

• Bachelor’s degree in electrical engineering or electronics engineering required; Master’s or PhD degree preferred
• Minimum of 5 years of demonstrated experience in BMS hardware or mixed signal and power electronics hardware development for industrial, automotive, large consumer products or aerospace applications (an equivalent combination of education and experience may be considered)
• Proven technical experience in HV battery management system and HW development
• Experience in low voltage BMS HW design and good analog / mixed signal / power electronics design experience also acceptable
• Expert in architecting and designing analog & mixed signal high voltage, high accuracy and medium speed PCB design using latest cell monitors and master BMS microcontrollers
• Expert in HV DC/DC, contactors, fuses selection for HV ESS applications with excellent understanding of HV safety and protection methods
• Expert in HW simulation tools like PSpice and modeling tools like MATLAB, SIMULINK
• Expert understanding of lithium based cell chemistries, their protection requirements, and gauging challenges
• Expert in HV circuit design, protection, and safety aspects as applicable to HV batteries
• Expert in ECAD tools like Altium for schematics and layout
• Experience in designing with varies communication interfaces like CAN, SPI, SCI, I2C and Ethernet
• Experience in ECAD tools like Altium for schematics and layout
• Ability to design HW to meet environmental, EMI/EMC, thermal, shock & vibration
• Experience in conducting and documenting tolerance analysis, part stress analysis, safety hazard analysis, FMEA, and FTA
• Excellent skills required in technical communication, and reliance on data for issue resolution and decision making
• Sense of urgency, proactive delivery of communication and follow-up
• Excellent organizational skills and attention to detail
• Proficiency with MS Office Suite specifically for data analysis, document creation and reporting

Any offer of employment is conditioned upon the successful completion of a background check. We are an equal opportunity employer and value diversity at our company. We