Location: National Grid Melksham Substation, Wiltshire Start Date: 13th April 2026 End Date: 13th October 2026 Hours: 08:00 - 17:30 (5 days per week) Job Type: Temporary Contract Rate: £650-£700 per day (Umbrella) IR35 Status: Inside IR35 (LTD not permitted) Overview of the Role: This position invol