Embedded Software Engineer

KO2 Embedded Recruitment Solutions Ltd; Warwick; Hybrid; GBP 65,000 - 75,000; Full time

Benefits offered by this job

Health insurance

Pension

Employee share scheme

Flexible/hybrid working

Job summary

KO2 Embedded Recruitment Solutions Ltd is seeking an Embedded Software Engineer for battery management systems in Warwick. You will own firmware architecture and work with real-time power management for energy storage applications.

The role requires embedded C/C++, experience with BMS or energy storage, and strong real-time skills. Hybrid/onsite work pattern with competitive benefits and pension.

Qualifications

• Embedded software development in C/C++ for microcontrollers, RTOS or embedded Linux.
• Experience with battery management systems or energy storage.
• Strong real-time fundamentals and deterministic timing.
• Proficiency with CAN, Modbus, or RS485.
• IEC 61508/functional safety experience is a plus.

Responsibilities

• Design and develop embedded C/C++ firmware for battery management controllers, including state estimation and thermal management.
• Evolve BMS architecture for next-gen energy storage topologies and distributed monitoring.
• Implement real-time power control logic for 50–240kW+ systems with 99%+ uptime.
• Define and debug power electronics interfaces and CAN/Modbus stacks.
• Develop test strategies and provide field support for deployed systems.

Skills

Embedded C/C++

Real-time systems

CAN/Modbus/RS485

BMS/energy storage

Git

Tools

Embedded Linux

Debugging tools

Job description

Embedded Software Engineer – Battery Management Systems

Location: Warwick – Onsite 3–4 days/week

About the Role

A rapidly expanding commercial energy infrastructure company is looking for an experienced Embedded Software Engineer to join their growing team. You'll own firmware architecture for battery energy storage systems delivering mission‑critical power resilience to customers across oil and gas and beyond — working with cutting‑edge battery topologies and real‑time power management algorithms.

Key Responsibilities

• Design and develop embedded C/C++ firmware for battery management controllers, including state estimation, cell balancing, and thermal management
• Evolve BMS architecture to support next‑gen energy storage topologies, including ring‑topology configurations and distributed cell monitoring
• Implement and optimise real‑time power control logic for fast‑response systems (50–240kW+), ensuring 99%+ reliability and uptime
• Define and debug power electronics interfaces, CAN/Modbus communication stacks, and safety‑critical monitoring systems
• Develop test strategies and provide field support for deployed systems

Required Experience

• Embedded software development in C/C++ (microcontrollers, embedded Linux, or real‑time systems)
• Battery management systems, power electronics, or energy storage
• Strong real‑time fundamentals: interrupt handling, state machines, deterministic timing
• Proficiency with CAN bus, Modbus, or RS485
• Understanding of power electronics: voltage/current sensing, SoC/SoH estimation, thermal modelling
• Git and embedded debugging/test automation tools
• IEC 61508/functional safety experience a strong advantage

Battery chemistry knowledge (Li-ion, LFP), industrial IoT/cloud-connected systems, FPGA/ASIC design, automotive/aerospace power systems, and wireless integration (Bluetooth/WiFi/4G/5G).

What They Offer

• £65,000–£75,000
• flexible/hybrid working
• employee share scheme
• modern engineering toolkit
• genuine technical autonomy within a small, fast‑growing team
• plus pension
• health insurance
• comprehensive benefits

Equal opportunities employer — applications welcome from all backgrounds.