Commissioning Engineer x2

  • Rubicon Consulting
  • Jun 23, 2026
Contractor Engineering

Job Description

Rubicon Consulting is currently recruiting for 2x Commissioning Engineers on a 9 month contract, based in Scotland.

Overview

Our Client is seeking 2 experienced Commissioning Engineers to support commissioning activities on a major transmission substation project in Scotland. Candidates will have proven experience working on 132kV, 220kV and 400kV transmission substations and possess a strong background in protection, control and commissioning activities within the transmission and distribution sector.

The successful candidates will be responsible for carrying out testing, inspection and commissioning of high-voltage electrical plant and protection systems, ensuring all equipment is commissioned safely and in accordance with project specifications and industry standards.

Key Responsibilities

Perform commissioning activities on 132kV, 220kV and 400kV transmission substations.

Test and commission high-voltage plant and associated protection and control systems.

Conduct Current Transformer (CT) and Voltage Transformer (VT) testing and verification.

Carry out testing and checking of protection schemes, including Busbar Protection Systems.

Perform interface testing of:

o Power Transformers

o Circuit Breakers (CBs)

o Reactors

o Gas Insulated Switchgear (GIS)

Execute Primary Injection Testing.

Execute Secondary Injection Testing.

Review commissioning documentation, test procedures and commissioning plans.

Identify and resolve commissioning issues and defects.

Ensure compliance with project commissioning procedures and safety requirements.

Produce test records, commissioning reports and handover documentation.

Liaise with commissioning managers, project engineers, protection engineers and client representatives.

Support energisation and final handover activities.

Mandatory Requirements

Proven experience commissioning 132kV, 220kV and/or 400kV transmission substations.

Strong knowledge of protection and control systems within HV substations.

Experience testing:

o CTs

o VTs

o Transformers

o Circuit Breakers

o Reactors

o GIS Equipment

Experience performing:

o Primary Injection Testing

o Secondary Injection Testing

o Protection Scheme Testing

o Interface Testing

Ability to read and interpret protection drawings, schematics and commissioning documentation.

Strong understanding of transmission network commissioning processes.

BESC / Persons Substations Certification.

Excellent fault-finding and problem-solving skills.

Full UK Driving Licence.

Desirable Requirements

National Grid Competencies.

Competent Person Authorisation.

IEC 61850 experience.

Protection Relay Testing experience.

Previous experience on major transmission infrastructure projects.

Key Skills

HV Substation Commissioning

Protection & Control Systems

CT / VT Testing

Busbar Protection Testing

Transformer Testing

Circuit Breaker Testing

Reactor Testing

GIS Commissioning

Primary Injection Testing

Secondary Injection Testing

Interface Testing

Fault Finding

Energisation Support

Transmission Networks (132kV / 220kV / 400kV)

Our Company

Rubicon Consulting is a Talent management consultancy which helps you to optimise business performance and competitive advantage by choosing the right people first time!