Principal Engineer Building Services & Auxiliary Power

Base Location

We're proud to offer a Flexible First approach to work, and this role is no exception. Your base "office" location must be one of our SSEN offices or depots around Scotland:
Aberdeen, Inverness, Perth.

£58,100 to £87,100 + performance‑related bonus + car/car allowance + a range of other benefits to support your family, finances and wellbeing.

Permanent | Full Time | Flexible First options available.

Network Engineering are part of the Asset Management and Operations Directorate. Their purpose is to ensure that engineering activities for all Transmission projects and business areas are safe, sound and supported. They carry out the Design and Technical Engineering Governance functions for the Transmission Business, ensuring that the design of the network and the equipment used operates safely, reliably and in compliance with the relevant legislation.

As part of our journey, we're looking for a Principal Engineer – Building Services & Auxiliary Power to join our team. You'll play a vital role in defining technical policy, influencing industry standards, driving project decision making and supporting the delivery of innovative, future‑ready projects across our transmission network.

• Write, maintain and own technical specifications required for substation Electrical services and Auxiliary Systems and their interfaces to plant and equipment used on the Transmission network (e.g. LVAC/LVDC systems, Standby Generators, Automatic Voltage Regulators, EV charging, Smart Monitoring, Battery Systems, Building Services such as Fire Protection, Building Lightning Protection, Building and substation lighting, Substation Security, Innovative new technologies etc.) and review existing specifications and update them based on lessons learnt from projects and to include development of technology.
• As part of the Technical Authority review perform approval of apparatus/equipment, Inspection Test Plan, Inspection Test Record, witness tests to ensure that all technology and apparatus/equipment selected is adequately tested, proven and validated and write Technical Authority reports.
• Provide Subject Matter Expert input to design reviews carried out by the Design Authority, provide specialist input where required and verify project proposals are fit for purpose and identify any scope changes required.
• Provide technical consultancy services across the SSEN Transmission business, encouraging the development of staff and have a willingness to share your specialist expert knowledge.
• Represent SSEN Transmission at industry body events such as ENA, IEC or CIGRE working groups and attend conferences to support engineering development and feedback best practice to our business.

• A degree in Electrical Engineering or another relevant engineering discipline and Chartered Engineer status with a relevant institution or working towards chartered status.
• Demonstrable experience on an expert level in the design, specification, construction, operation and maintenance of Electrical Services and Auxiliary Systems in a data centre, substation or industrial background.
• The ability to technically assess issues and/or problems and critically assess a range of technical solutions and adetailed knowledge and understanding of a range of National and International Standards including National Grid, Energy Network Association, British and European specification/standards.
• Experience in the management of various stakeholders, e.g. engineering, asset management, contractors, etc.
• Experience in manufacturing or testing and commissioning of transmission voltage substation Electrical Services and Auxiliary Systems in substations would also be advantageous.
• Demonstrable experience in development of a data‑led approach to design validation and specification compliance of transmission substation specific building requirements. Be comfortable to technically assess issues and critically assess a range of proposed technical solutions.

SSE’s purpose is to provide energy needed today while building a better world of energy for tomorrow. We do this by developing, building, operating and…