Commissioning Engineer – Battery Energy Storage (BESS)
UK (Ayrshire - site-based)
MDE Group are working with a global leader in renewable energy and energy storage solutions to support the growth of their UK delivery team.
We are looking for a Commissioning Engineer with experience in Battery Energy Storage Systems (BESS) to support installation, commissioning, and troubleshooting activities across multiple project sites.
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
Desirable
* 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 salary + benefits + career progression