Senior Power Systems Technician

Lead product commissioning of e-STORAGE products across UK LTSA sites (SolBank, string inverters, MVSkids and associated MV plant) to OEM standard and project scope.

Own and set first power-on initialization parameters (OEM-trained personnel requirement per product manuals); incorrect settings risk equipment damage and certification non-compliance.

Own product commissioning standards, procedures, test records, and documentation packs; ensure consistency across all UK projects.

Provide product-level technical support to the site Cx team during energisation.

Support the site Cx team during SAT and witness testing; provide product-level technical sign-off.

Competent for appointment to carry out MV/HV isolations, earthing, and safety document duties under the prevailing site safe system of work, as a mandatory precursor to intrusive PM/CM works. Site HV authorisation arrangements are defined per contract and phase (see MV/HV Authorisation & Control of Work).

Carry out operational HV/MV switching during the service phase, including switching for planned PM outages, CM interventions, and restoration on return to service, where CSE holds control of work under the contract.

Provide HV/MV support to the service team during PM and CM activities: isolations, earthing, switching, and safe access where service team work interfaces with HV/MV plant.

Lead HV/MV preventative maintenance across CSE, SMA and Power Electronics MV skids, RMUs, transformers, and protection systems per OEM schedules.

Lead corrective maintenance and fault investigation on HV/MV equipment: root cause analysis, rectification and return to service.

Provide safety leadership and oversight for all HV/MV activities in region, including supervision of third-party HV contractors where used.

Subject-matter expert across all inverter platforms (CSE string inverters, SMA, Power Electronics) for HV/MV maintenance activities; product commissioning expertise applies to e-STORAGE products.

Assess and develop service team competency for HV/MV support roles; deliver toolbox talks, training, and authorisation recommendations.

Feed field learnings back into standards, RAMS/SOPs, and OEM escalations.

Routine non-HV/MV maintenance (LV PM, BESS enclosure servicing, HVAC, general CM). This is delivered by the regional service team, with this role providing HV oversight only where work interfaces with HV/MV plant.