Senior Commissioning Engineer 12 month initial contract (likelihood for extension) Outside IR35 £65 per hour Required Skillset - 5 years experience working in BESS environments - Proven track record commissioning HV / EHV substations (typically 132kV-400kV). - Strong understanding of protection relays, SCADA systems, and control panels. - Demonstrated experience working under UK DNO / TSO safety rules. - Ability to work independently and manage multiple commissioning packages concurrently.