BMS Hardware Engineer

BYD Europe; Rotenberg; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Competitive remuneration

Team building events

Zero-emission impact on decarboniz

Job summary

BYD Europe is seeking an experienced BMS engineering professional for its Stuttgart-based team. The role emphasizes circuit design, BMS architecture, and high-voltage system expertise to support EV energy storage development.

Responsibilities include CAN/CANFD interfaces, EMC/EMI considerations, and validation activities; English and Chinese are preferred, with German a plus. The position is full-time and on-site in Stuttgart.

Qualifications

• Capacities for circuit design with high-voltage isolation.
• Understanding BMS control strategy and front-end shunting is preferred.
• Familiar with Simulink or embedded software development tools is preferred.
• Knowledge of battery pack electrical and electronic systems is preferred.
• Fluent in English and Chinese, German is preferred.

Responsibilities

• Capacities for circuit design and BMS expert work on main/CMU/HV boards.
• Proficient in CAN / CANFD, RS485 / 232, SPI, I2C, UART interfaces.
• Test validation and certification using oscilloscopes and analyzers.
• Experience in EMC/EMI design, safety standards, and functional safety concepts.

Skills

Circuit design

BMS architecture

CAN / CANFD

UDS / OBD

EMC / EMI design

Safety standards ISO 26262

High voltage systems

Power electronics

PCB layout

Analog & digital electronics

Simulink

Embedded software tools

English & Chinese

Education

Electrical / electronics / automation / vehicle engineering major

Tools

Altium Designer

Cadence (OrCAD / Allegro)

PADS

Protel

Job description

About BYD

Our Purpose is to build a zero-emission future that reconnects humanity with nature. We are looking for talent that connects with this mission and want to create positive impact by joining a diverse and dynamic team.

BYD is a leading, high-tech multinational, based in Shenzhen, China. Operates in four core fields of IT, automotive, new energy, and rail transit and employs over 300,000 people worldwide. As a global pioneer in New Energy Solutions BYD is dedicated to building a zero-emission ecosystem.

Key Responsibilities:

• Capacities for circuit design
  Proficient in analog circuit and digital circuit design, familiar with high-precision ADC acquisition, DC-DC isolated power supply, MOSFET driver, active / passive equalization circuit.
  Proficient in at least one EDA tool: Altium Designer, Cadence (OrCAD / Allegro), PADS, Protel.
  Experience in multilayer PCB Layout, able to complete layout and routing independently, focusing on high voltage isolation, thermal design, signal integrity.

• BMS Expertise
  Deep understanding of the BMS system architecture: Main Control Board (BMU), Acquisition Board (CMU / CSB), High Voltage Board (HVU) function division and design.
  Familiar with core device selection: AFE chip (such as TI, NXP, ADI series), MCU, isolation communication chip, SBC chip, etc.
  Understand the charging and discharging characteristics of lithium batteries, the principle of SOC / SOH estimation, and the equalization strategy.

• Communication and Interface Protocol
  Proficient in CAN / CANFD, RS485 / 232, SPI, I2C, UART and other bus interface design.
  Understanding UDS / OBD diagnostic protocols.

• Test validation and certification
  Skilled use of test equipment such as oscilloscopes, logic analyzers, spectral analyzers and electronic loads, heat sinks.
  Experience in EMC / EMI design and rectification (filtering, shielding, grounding, etc.).
  Knowledge of safety standards (IEC / GB / UL / CE) and functional safety concepts (ISO 26262 / IEC 61508).
  Experience in DV / PV validation, FCT / EOL testing is preferred.

• Other points
  Experience in full R&D of BMS production project (from solution to SOP).
  There is a case of BOM cost reduction.
  Understanding the ASPICE process.
  High voltage (≥ 1500 V) high current energy storage product development experience.

Skills, Qualifications, and Experience Required:

• Full-time subject learning experience, with work experience is preferred.

• Electrical and electronics, automation, vehicle engineering and other related majors, familiar with analog and digital electronics.

• Familiar with BMS control strategy and front-end shunting experience is preferred.

• Knowledge of battery pack electrical and electronic systems (including BMS, distribution box, wiring harness, etc.) is preferred.

• Familiar with Simulink or embedded software development tools is preferred.

• Fluent in English and Chinese, German is preferred.

We Offer:

• Competitive remuneration based on performance and experience.

• Opportunities for department and company-wide team building events.

• A chance to contribute to the transition towards zero-emission transportation and the decarbonization of the economy.

Location: Stuttgart Germany
Type of Employment: Full-time