Role: Commissioning Engineer – Battery Energy Storage (BESS)
Location: North London/Essex – Site based
Start Date: 18/05/2026
Type: Contract
Rate: Up to £50 p/h
Key Responsibilities
* Carry out installation and commissioning of battery energy storage systems in line with technical requirements
* Perform testing, debugging, and fault finding on BESS equipment (including inverters, PCS, and associated systems)
* Support site planning and coordination of commissioning activities
* Troubleshoot and resolve system issues to restore performance efficiently
* Assist with maintenance and technical upgrades of energy storage systems
* Work closely with internal teams and international engineering support functions
Requirements
* 2+ years’ experience in BESS commissioning or similar energy storage projects
* Strong background in electrical engineering, HV/LV systems, or power electronics
* Experience with on-site commissioning, testing, and fault finding
* Relevant certifications such as CSCS, IOSH, NEBOSH, SMSTS, or equivalent
* HV/LV authorisation or electrical qualifications highly desirable
* Strong communication skills and ability to work in a site‑based, hands‑on environment
* Proficient in standard office/software tools
* Willingness to travel and work on projects across multiple locations
* Experience working with battery OEMs or inverter systems
* Exposure to international teams or projects
What’s on Offer
* Opportunity to work on cutting‑edge energy storage projects
* Join a fast‑growing sector at the forefront of the energy transition
* Competitive rate + benefits + career progression
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