IMMEDIATE START, OUTSIDE IR35 CONTRACT - Senior Electrical Engineer I m in search of a contract Senior Electrical Engineer who can deliver the detailed electrical design for a containerised ammonia cracker system, supporting safe, reliable, and standards-compliant operation within a modular container environment. The scope of work includes development of the overall electrical architecture, load calculations, and power distribution design, including single line diagrams, protection philosophy, cable sizing, and equipment specification (switchgear, distribution boards, UPS, and associated systems). The contractor shall design and integrate control systems, including PLC hardware selection, I/O definitions, and communication networks, ensuring full compatibility with process and instrumentation requirements. The work shall address hazardous area requirements associated with hydrogen, including equipment selection (ATEX/IECEx where required), area classification support, intrinsic safety design, and appropriate segregation and grounding. Design of earthing, bonding, and lightning protection systems shall also be included. The contractor shall produce all the required electrical layouts for the containerised installation, including lighting, HVAC power integration, cable routing, and space constraints. All designs must consider thermal management, manufacturability, and maintainability. Deliverables include design basis documentation, load lists, single line diagrams, detailed w