Amazon Battery Management System BMS Hardware Development Engineer II Prime Air 

United States, Washington, Seattle 

423313377

Prime Air is seeking an experienced Electrical Engineer to design and develop power electronics hardware and related electrical power systems for Prime Air Drones. This includes, battery chargers, DC-DC converters, DC-AC inverters, Motor Controllers and power distribution systems. In this role you will be working with our Seattle based team to help to deploy new hardware and electrical power systems for Prime Air Drones. You will work with internal and external vendors to support hardware development, manufacturing and test. You will also be supporting other ongoing development and testing efforts for the Drone.Key job responsibilities-Designs, develops, and tests Battery Management System (BMS) hardware for Li-ion batteries.
-Design and test other analog/digital devices components such as inverters, battery chargers, DC-DC converts and protection circuitry.
-Perform electrical analyses, circuit simulation, components sizing and selection, create electrical schematics and PCB layouts.
-Support engineering trades, estimates and interact with suppliers/partners on critical components and develop hardware from concept to mass production.
-Support developing hardware and component level requirements/specifications.
-Increase the engineering rigor behind designs, verification, and documentation.
-Perform prototype hardware and systems in labs.
-Perform formal verification testing including DO-160 and DO-254
-Support BMS software development and testing per DO-178

- B.S. in Electrical Engineering or related fields
- Minimum 4+ years’ experience developing Battery Management Systems(BMS) for Li-Ion batteries
- A strong foundation in electrical engineering principles, including circuit design, power electronics, and analog/digital systems
- Experience programming microcontrollers and designing embedded systems. Knowledge of C/C++, familiarity with communication protocols (e.g., CAN, I2C, SPI), and experience with real-time operating systems (RTOS).
- Experience in PCB (Printed Circuit Board) design and layout. This includes proficiency in PCB design software (e.g., Altium Designer, KiCad, Eagle), understanding of EMI/EMC principles, and knowledge of high-speed design techniques.
- System-Level Design and Integration experience. Ability to conceptualize and implement complete BMS solutions. This involves understanding how various components interact, designing for scalability and modularity, and considering factors like cost, manufacturability, and regulatory compliance.
- Experience designing and analyzing inverter and converter circuits including gate drivers
- Knowledge and experience with embedded control of power electronic circuits.
- Skilled working in lab environment with batteries, high voltages/current and testing batteries.
- Experience leading PCBA Board bring-Up, validation testing, generating test plans/procedures/reports
- Ability to work in a fast-paced development environment

- Master's Degree in Electrical Engineering
- 6+ years’ experience developing Battery Management Systems(BMS) and battery chargers for Li-Ion batteries
- Proficiency in programming microcontrollers and designing embedded systems. Proficiency of C/C++, familiarity with communication protocols (e.g., CAN, I2C, SPI), and experience with real-time operating systems (RTOS).
- Proficiency in PCB (Printed Circuit Board) design and layout. This includes proficiency in PCB design software (Altium preferred), understanding of EMI/EMC principles, and knowledge of high-speed design techniques.
- Experience with CAD software (CATIA preferred)
- Experience working with commercial standards (DO-254, DO-160G, DO-178)
- Experience with EMI/EMC filter design for power electronics products
- Experience developing Inverters and DC-DC converters
- Experience in Python, Matlab, or equivalent scripting languages
- Experience in aerospace or automotive industry
- Knowledge or experience using FEA simulation tool such as Ansys Maxwell/Q3D or equivalent