Senior Commissioning Engineer – Battery Energy Storage (Contract) Location: UK-wide (site-based travel required) Contract: Freelance / Contract ONLY

Edison Smart are seeking senior-level Commissioning Engineers with proven expertise in Battery Energy Storage Systems. You’ll lead commissioning on grid-scale projects across the UK, ensuring systems are delivered, tested, and handed over on time and to specification.

What do we need from you?

Lead commissioning of utility-scale BESS, including LV/MV equipment, inverters, transformers, and switchgear. Execute FAT/SAT, protection testing, and functional validation of systems. Troubleshoot BMS, SCADA, PLCs, and communication networks. Ensure compliance with BS 7671, G99/G100, and site safety protocols. Produce commissioning documentation and client handover packages.

Requirements:

5+ years’ commissioning experience on BESS or comparable large-scale power systems. Strong knowledge of HV/LV electrical distribution, grid codes, and protection schemes. Experience with SCADA/BMS integration and industrial communication protocols. HV Authorised Person and 18th Edition highly desirable. Flexibility to travel nationwide, CSCS/ECS required.

What's in it for you?

Continuous pipeline of LONG TERM projects across the UK. Work with leading developers, EPCs, and OEMs on cutting-edge energy storage projects.