Job Title: Senior Design Engineer – Primary
Location: Glasgow (Hamilton)
Reporting to: Section Lead – Primary
Business Unit: Omexom Design
Purpose of the Position
To deliver technically robust and compliant primary plant designs for high-voltage (HV) substations, supporting project delivery across all phases from concept to construction. The Senior Design Engineer will develop substation layouts, coordinate with multi-disciplinary teams, and ensure that client specifications and industry standards are fully met.
Key Responsibilities and Duties

Including but not limited to:

• Design DevelopmentProduce HV substation primary layout designs for voltage levels typically between 132kV and 400kV, including busbar configurations, equipment positioning, and clearances.
• Technical DocumentationPrepare and review drawings and documentation including general arrangements, plant layout plans, elevation views, sections, and cable routing plans.
• Standards ComplianceEnsure that all designs comply with relevant client specifications (e.g. SSEN, National Grid TS, ENA TS) and industry standards (e.g. IEC, BS EN, CDM 2015).
• Design CoordinationWork closely with civil, secondary, protection, and control engineers to deliver coordinated and constructible designs. Support multidisciplinary design reviews.
• Client and Stakeholder EngagementSupport technical discussions with clients and participate in design reviews, HAZID workshops, and progress meetings when required.
• Quality and AssuranceContribute to internal design reviews and ensure technical quality of deliverables. Support the development of standard drawings and design processes.
• Mentoring and SupportAssist junior engineers and graduate designers with technical development, drawing interpretation, and compliance with engineering procedures.
• Construction SupportRespond to technical queries (TQs) and requests for information (RFIs) during construction. Assist with redlining and as-built documentation.

Person Specification

Essential Qualifications and Experience

• Degree in Electrical Engineering or a related discipline.
• Experience in the design of HV substation primary plant and layouts.
• Strong understanding of substation layout principles, clearances, operational access, and plant selection.
• Proficient in the use of AutoCAD and capable of interpreting and producing detailed engineering drawings.
• Knowledge of UK substation specifications, particularly ENA TS, NG TS, and IEC 61936.
• Experience working on client frameworks such as National Grid, SPEN, or SSEN.
• Understanding of CDM regulations and the application of Safety by Design principles.

Desirable Attributes

• Working towards or holding Chartered Engineer (CEng) status.
• Familiarity with 3D design tools and BIM workflows (e.g. Revit, Navisworks, BIM 360).
• Experience supporting the delivery of large multidisciplinary infrastructure projects.
• Ability to lead technical discussions and resolve design issues in a timely manner.

Please refer the Job description for details