Role: BMS Software Architect – Control Systems & Functional Integration
Location: Warwickshire
Rate: £30+ p/h (Outside IR35)
Hours per week: 40
Role Overview
As a BMS Software Architect, you will lead the design and integration of advanced software architectures for next-generation battery management systems. You’ll define control strategies, software interfaces, and diagnostic frameworks across SDU Controls, Cell Supervisory Controllers (CSC), and WGM platforms. Your expertise will ensure robust, scalable, and safety-compliant software solutions that drive performance, reliability, and innovation across electrified powertrains.
Key Responsibilities
Software Architecture & Design
Define And evolve the software architecture for BMS control systems across embedded platforms
Develop scalable software integration strategies for SDU, CSC, and WGM units
Optimise software performance across thermal, electrical, and safety domains
Requirements Engineering & Traceability
Translate system-level requirements into detailed software specifications and interface definitions
Ensure full traceability from stakeholder inputs through design, implementation, and validation using tools like IBM DOORS or Polarion
Support functional decomposition and model-based design using MATLAB/Simulink or SysML
Integration Strategy & Technical Leadership
Lead cross-functional teams in software development, controls engineering, and validation
Define communication protocols (CAN, LIN, SPI), timing constraints, and fault-handling logic
Oversee HIL validation, software-in-the-loop (SIL) testing, and failure mode simulations
• Compliance & Stakeholder Engagement
Ensure software compliance with ISO 26262 and other functional safety standards
Collaborate with internal teams, suppliers, and platform owners to align on software architecture goals
Influence software roadmap decisions and contribute to long-term platform scalability
Required Qualifications
Bachelor’s or Master’s degree in Software Engineering, Electrical Engineering, or related field
7+ years of experience in embedded software architecture, control systems, or BMS software integration
Strong proficiency in real-time embedded systems, control algorithms, and communication protocols
Experience with model-based development tools (MATLAB/Simulink, SysML) and software documentation platforms
Familiarity with software versioning, CI/CD pipelines, and agile development practices
Preferred Attributes
Experience with AUTOSAR Classic or Adaptive platforms
Deep understanding of lithium-ion battery behavior, cell balancing strategies, and thermal control algorithms
Strong analytical mindset with a passion for clean architecture and scalable design
Background in automotive, aerospace, or electrification domains with high-voltage system experience
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