Job Requirements

At Quest Global, it's not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place-to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster.

Job Purpose

The Commissioning Engineer is responsible for executing, and completing the commissioning of HV substations to ensure that all primary and secondary systems are installed, tested, and energised safely, in accordance with project specifications, statutory regulations, and client requirements.

Key Responsibilities

Protection Relay Tests

• Carry out commissioning and testing of protection relays for HV substations typically ranging from 33 kV to 400 kV.
• Test and commission protection schemes including:
  • Overcurrent and earth fault
  • Distance protection
  • Transformer differential and REF
  • Busbar protection
  • Feeder, breaker failure, and backup protection
• Verify Configuration, parameterize, and test numerical protection relays in accordance with approved settings and protection philosophies.

Testing & Verification

• Perform secondary and primary injection testing using approved test equipment (e.g. Omicron, Megger, Sverker).
• Carry out CT and VT tests and end-to-end protection tests.
• Test inter-tripping, interlocking, alarms, indications, and trip circuits.

Protection Schemes & Interfaces

• Verify correct operation of:
  • Trip, close, and lockout circuits
  • Auto-reclose schemes
  • Synchronising and synch-check functions
  • Tele-protection and inter-tripping interfaces
• Coordinate with SCADA, control, and communications engineers to ensure correct data mapping, indications, and remote control.
• Validate IEC 61850 GOOSE and station bus communications where applicable.

Safety and Compliance

• Carry out all commissioning activities in strict compliance with:
  • Client and company's Safety Rules and EHS procedures
  • Approved method statements and risk assessments
• Maintain safe systems of work when interfacing with live or adjacent HV plant.
• Stop work and escalate any unsafe conditions, non-compliances, or protection anomalies.

Documentation & Quality

• Produce, review, and sign off protection test records, relay settings verification sheets, and commissioning certificates.
• Ensure test results comply with approved Inspection & Test Plans (ITPs).
• Support resolution and closure of commissioning defects and punch-list items.
• Contribute to as-built documentation and handover packs.

Interface & Support

• Work closely with:
  • Lead Commissioning Engineer
  • Site Manager
  • Client commissioning teams
• Support commissioning panels, energisation reviews, and outage planning activities.
• Provide technical input during fault investigations or commissioning issues.

Authorisations

• CAT-1 for non-energised SSEN stations and CAT-3 for energised SSEN stations
• NGP for non-energised NG stations and NGCP for energised NG stations
• CCNSG or equivalent ticket

Typical Work Environment

• HV substations during construction, outage, and commissioning phases.
• Site-based testing, and commissioning activities.
• 10 hours/day with 6 days/week and 11 days/fortnight rotations for onshore stations.
• 12 hours/day, 14 days rotation for offshore stations.

We are known for our extraordinary people who make the impossible possible every day. Questians are driven by hunger, humility, and aspiration. We believe that our company culture is the key to our ability to make a true difference in every industry we reach. Our teams regularly invest time and dedicated effort into internal culture work, ensuring that all voices are heard.

We wholeheartedly believe in the diversity of thought that comes with fostering a culture rooted in respect, where everyone belongs, is valued, and feels inspired to share their ideas. We know embracing our unique differences makes us better, and that solving the worlds hardest engineering problems requires diverse ideas, perspectives, and backgrounds. We shine the brightest when we tap into the many dimensions that thrive across over 21,000 difference-makers in our workplace.