Senior Design Engineer - HV Plant
| Posting date: | 27 November 2025 |
|---|---|
| Salary: | Not specified |
| Additional salary information: | £50000-65000 per annum |
| Hours: | Full time |
| Closing date: | 25 December 2025 |
| Location: | Cannock Office (2021000014), - |
| Company: | J Murphy & Sons |
| Job type: | Permanent |
| Job reference: | 22591-43808792 |
Summary
Murphy is a leading international, specialist engineering and construction company founded in 1951 with a purpose to improve life by delivering world-class infrastructure. Operating in the United Kingdom, Ireland, Canada and America, Murphy provides better engineered solutions to infrastructure sectors including transportation; natural resources; energy and water. Headquartered in London, Murphy has a number of related businesses – Ground Engineering; Utility Connections; Murphy Plant; Murphy Process Engineering; Pipeline Testing Services; Specialist Welding Services; and Electrical Services. Murphy is a specialist in delivering pipelines, design, structural steel, tunnelling, fabrication, bridges and piling, and has a substantial holding of plant, equipment and facilities. Murphy employs around 4,000 engineers, professional managers and skilled operatives around the world. Together, they work as ‘One Murphy’
- directly delivering the people, plant and expertise needed to make projects a success. Visit www.murphygroup.com or follow us on LinkedIn, Facebook, Instagram and X: #MoretoMurphy
A day in the life of a Murphy Senior Design Engineer
- Work with the Principal Engineer (HV Plant) to prepare 3D models, of substation HV plant layouts for new build and extensions of electrical substations up to 400kV.
- Prepare technical specifications for electrical plant items like circuit breaker, disconnector, earth switches, instrument transformers, for Air Insulated and Gas Insulated switchgear.
- Review Original Equipment Supplier (OEM) quotations and documentation to ensure compliance and to integrate these into the overall designs.Prepare client drawings, using AutoCAD of detailed design aspects, such as layout and elevations, earthing, mechanical interlocking schemes as requirements in line client’s technical specification.
- Work with Assistant Engineer and CAD operators to prepare Design Packages for final checking before Client review and issue for construction purposes, undertaking checking to ensure quality and high standards are maintained.
- Provide technical support during construction & commissioning including formal response to site technical queries, i.e., preparation of mods for design modification to rectify design error or any other reason that compels to amend the design to fulfil the functional requirements.
- Work closely with other sections of substation engineering design team to enable effective collaboration on multi-disciplinary projects and facilitate an optimal engineering function.
- Establish and promote best practice in health, safety and environmental matters in conjunction with the SHQE department.
- Provide supervision of assistant engineers, apprentice engineers or CAD operators, providing mentoring, where required.
- Work closely with Principal Engineer, other Senior Engineers and Engineering Manager to support tenders, drive innovation and produce cost effective integrated substations solutions.
- Work closely with Operations and Site Management teams to produce construction methodologies, Impressed Voltage (IV) management plans and CDM drawings to support tenders.
- To develop knowledge of National Grid Specifications with the view to applying for National Grid TP137 Contractor Design Approval Engineer as and when required.
Still interested, does this sound like you?
- HV Electrical Plant layout designs Experience – At least 3-4 Years.
- Should know the working principal of different types of Electrical Plant and instruments transformers.
- Understanding of protection and control interfaces for AIS and GIS substations.
- Familiar with National Grid technical specification for substation design.
- Efficient in Revit, Navisworks (or other relevant 3D systems) and AutoCAD software application for making 3D models and 2D drawings.
- Knowledge of National Grid Technical Specifications
- directly delivering the people, plant and expertise needed to make projects a success. Visit www.murphygroup.com or follow us on LinkedIn, Facebook, Instagram and X: #MoretoMurphy
A day in the life of a Murphy Senior Design Engineer
- Work with the Principal Engineer (HV Plant) to prepare 3D models, of substation HV plant layouts for new build and extensions of electrical substations up to 400kV.
- Prepare technical specifications for electrical plant items like circuit breaker, disconnector, earth switches, instrument transformers, for Air Insulated and Gas Insulated switchgear.
- Review Original Equipment Supplier (OEM) quotations and documentation to ensure compliance and to integrate these into the overall designs.Prepare client drawings, using AutoCAD of detailed design aspects, such as layout and elevations, earthing, mechanical interlocking schemes as requirements in line client’s technical specification.
- Work with Assistant Engineer and CAD operators to prepare Design Packages for final checking before Client review and issue for construction purposes, undertaking checking to ensure quality and high standards are maintained.
- Provide technical support during construction & commissioning including formal response to site technical queries, i.e., preparation of mods for design modification to rectify design error or any other reason that compels to amend the design to fulfil the functional requirements.
- Work closely with other sections of substation engineering design team to enable effective collaboration on multi-disciplinary projects and facilitate an optimal engineering function.
- Establish and promote best practice in health, safety and environmental matters in conjunction with the SHQE department.
- Provide supervision of assistant engineers, apprentice engineers or CAD operators, providing mentoring, where required.
- Work closely with Principal Engineer, other Senior Engineers and Engineering Manager to support tenders, drive innovation and produce cost effective integrated substations solutions.
- Work closely with Operations and Site Management teams to produce construction methodologies, Impressed Voltage (IV) management plans and CDM drawings to support tenders.
- To develop knowledge of National Grid Specifications with the view to applying for National Grid TP137 Contractor Design Approval Engineer as and when required.
Still interested, does this sound like you?
- HV Electrical Plant layout designs Experience – At least 3-4 Years.
- Should know the working principal of different types of Electrical Plant and instruments transformers.
- Understanding of protection and control interfaces for AIS and GIS substations.
- Familiar with National Grid technical specification for substation design.
- Efficient in Revit, Navisworks (or other relevant 3D systems) and AutoCAD software application for making 3D models and 2D drawings.
- Knowledge of National Grid Technical Specifications