BMS Controls Engineer Rimac Energy Oxfordshire UK, United Kingdom

Rimac Group; Oxford; Remote; GBP 70,000 - 110,000; Full time

Job summary

Rimac Group in the United Kingdom seeks a Battery Controls Engineer to develop embedded control algorithms for battery management systems using MATLAB/Simulink. You will design models, generate C code for microcontrollers, and support MIL/SIL/HIL validation across energy storage applications.

You will collaborate with hardware, software and system teams, ensure traceability to requirements, and apply ISO 26262 or ASPICE principles while maintaining versioned models in Git.

Qualifications

• 5+ years of experience with MATLAB/Simulink for control system development.
• Hands-on experience with Simulink code generation for embedded targets.
• Strong understanding of battery systems and state estimation.
• Experience in HIL testing platforms such as dSPACE or Typhoon HIL.
• Working understanding of CAN data networking and Vector tools.

Responsibilities

• Develop control models for embedded hardware, including battery state estimation, thermal management, cell balancing, voltage and current limits, and protection/diagnostics.
• Design, simulate, and validate models in Simulink/Stateflow.
• Generate embedded C code using Simulink Coder / Embedded Coder for deployment on microcontrollers.
• Support MIL, SIL, and HIL testing workflows for model validation.
• Collaborate with system, hardware, and software teams to integrate control logic into battery systems.
• Ensure traceability from requirements to model and code using ISO 26262 or ASPICE with Simulink requirements and tests.
• Debug, analyse, and optimise real-time embedded control performance.
• Maintain and version control models using Git or similar systems.

Skills

MATLAB/Simulink

Embedded coding

HIL testing

CAN data networking

Vector tools

Control theory

Battery systems

Education

Bachelor's or higher in Electrical Engineering

Tools

dSPACE

Typhoon HIL

Simulink Coder

CANoe

CANape

Canalyzer

Embedded Coder

Infineon XMC7200 / TI C2000 / STM32 / NXP

Job description

About us

We are a technology powerhouse that designs, engineers, and manufactures the world's most advanced automotive technology and hypercars. Bytes to bolts, Rimac is where everything happens.

Our teams develop and produce both hardware and software solutions for our flagship, record-breaking hypercar, the Nevera, as well as for other automotive manufacturers’ vehicles. Working on technology solutions for partners such as Porsche, Hyundai, Aston Martin, Koenigsegg, Automobili Pininfarina, and others, gives Rimac a unique position of a technology leader in the high-performance electric vehicle industry. The stakes are high.

As a fast-moving company, we nurture a high-performing culture. If you are interested in joining, you must be prepared for relentless learning, adapting, and embracing new technologies. We expect an easy-going person, but also self-driven, entrepreneurial, and highly independent in their work, that will enjoy rising to the challenge and have fun pushing the limits of technology.

Our expectations are high. And we can only achieve our goals with the dedication and collaboration of our exceptional team. Our ambition is to deliver and go the extra mile. We need to expand our already industry-leading team, find the best people, and lead the charge.

We are looking for a skilled and motivated Battery Controls Engineer with expertise in model-based design (MBD) using MATLAB/Simulink and automatic code generation. You will be responsible for developing and deploying embedded control algorithms for battery management systems (BMS) and battery-powered systems across energy storage applications.

This is a hands-on engineering role working at the intersection of control systems, embedded software, and battery technology.

Responsibilities

• Develop control models for embedded hardware, including:
  • Battery state (SoC, SoH, SoP, SoE, etc.) estimation
  • Thermal management
  • Cell balancing
  • Voltage and current limits
  • Battery protection and diagnostics
• Design, simulate, and validate models in Simulink / Stateflow.
• Generate embedded C code using Simulink Coder / Embedded Coder for deployment on microcontrollers (e.g., Infineon XMC7200, TI C2000, STM32, NXP).
• Support MIL, SIL, and HIL testing workflows for model validation.
• Collaborate with system, hardware, and software teams to integrate control logic into battery systems.
• Ensure traceability from requirements to model and code (ISO 26262 or ASPICE preferred) using Simulink Requirement and Test.
• Debug, analyse, and optimise real-time embedded control performance.
• Maintain and version control models using Git or similar systems.

Requirements

• B.Sc. or higher in Electrical Engineering, Mechatronics, Control Systems, or related field.
• 5+ years of experience with MATLAB/Simulink for control system development.
• Hands-on experience with Simulink code generation for embedded targets (Embedded Coder, Simulink Coder).
• Strong understanding of battery systems and state estimation
• Experience in HIL testing platforms such as dSPACE or Typhoon HIL.
• Working understanding of CAN data networking
• Proficient with Vector tools (Canalyzer, CANape, CANoe)
• Solid foundation in control theory