Embedded Software Engineer

KO2 Embedded Recruitment Solutions Ltd; Royal Leamington Spa; On-site; GBP 65,000 - 75,000; Full time

Benefits offered by this job

Employee share scheme

Pension

Health insurance

Hybrid working

Job summary

KO2 Embedded Recruitment Solutions Ltd is seeking an Embedded Software Engineer to own firmware architecture for battery energy storage systems in Warwick. You will design embedded C/C++ firmware for BMS controllers, implement real-time power control, and work with safety-critical monitoring across cutting-edge topologies.

The role offers onsite/hybrid work with competitive salary and comprehensive benefits, including pension and health insurance, within a small, fast-growing team committed to

Qualifications

• Embedded software development in C/C++ on microcontrollers, embedded Linux, or RTOS.
• Experience with battery management systems, power electronics, or energy storage.
• Strong RT fundamentals: interrupt handling, state machines, deterministic timing.
• Git and embedded debugging/test automation tools.
• IEC 61508/functional safety experience is a strong advantage.

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.

Job description

Embedded Software Engineer - Battery Management Systems

Location: Warwick - Onsite 3-4 days/week
Salary: £65,000-£75,000

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
• Git and embedded debugging/test automation tools
• IEC 61508/functional safety experience a strong advantage

Desirable

• 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, and genuine technical autonomy within a small, fast‑growing team. Plus pension, health insurance, and comprehensive benefits.

Equal opportunities employer - applications welcome from all backgrounds