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Commissioning Engineer

Job in Belfast, County Antrim, BT1, Northern Ireland, UK
Listing for: NSG Environmental Ltd
Full Time position
Listed on 2026-07-30
Job specializations:
  • Engineering
    Civil Engineering, Environmental Engineer, Quality Engineering, Mechanical Engineer
Job Description & How to Apply Below

NSG Environmental Ltd has been delivering work programmes in the nuclear industry for over 40 years. Traditionally in the areas of decommissioning and waste management, NSG now has a broad customer base and provides a wide spectrum of services across the nuclear project lifecycle, ranging from expert consultancy support, R&D and engineering design to rekit and refurbishment, site installation services and high-hazard physical decommissioning works, amongst others.

This work is delivered at NSG’s own offices and purpose-built facilities and nuclear sites across the UK. The delivery and management of these projects and programmes of work is carried out by a skilled workforce composed of both white-collar and blue-collar personnel in technical, administrative, and physical roles.

Our core values of Passion, Integrity, Challenge and Collaboration drive performance and ensure we add significant value. If joining us as a member of staff, we will support your professional development in an exciting and challenging work environment that will enable you to use, develop and hone your technical expertise in a supportive and collaborative working environment.

DV only
- All applicants must have DV Security Level Clearance. Please only apply if you are eligible to obtain DV clearance and are happy to go through the process.

Nationwide only
- Candidate must be willing to travel and work away from home as and when required. Please only apply if you are able to travel.

The Role

To have responsibility for the commissioning activities associated with the delivery of the project for the assigned site, ensuring the delivery of the project in full compliance with the pre-determined standards of safety, quality, environmental and security and the conditions of contract.

Key Objectives Project Delivery

Documentation

  • Input to the commissioning strategy and other high-level control documentation.
  • Control Plans
  • Setting to Work documents
  • Method Statements
  • LTQR documentation
  • Liaise with sub-contractors and suppliers to support the generation and review of:
  • Control Plans
  • Factory Acceptance Testing documents
  • Setting to Work documents
  • Site Acceptance Testing documents
  • LTQR documentation
Project Delivery Services
  • Attendance at FATs ensuring that the supplier carries out the testing in accordance with the agreed test plan.
  • Ensuring that the supplier’s equipment is installed as per the installation documentation and inspection has been undertaken to allow acceptance to proceed to Setting to Work.
  • Witnessing Setting to Work and ensuring that the documented procedure is being followed developed and signed off.
  • Liaise with the Client site commissioning manager
  • Management of project engineers and technicians in support of StW, SAT and inactive commissioning activities
  • Reporting any plant and equipment issues through to the NSG site Project Manager and support the rectification process in a timely manner.
  • Ensure and promote effective communication and working between disciplines to support the overall delivery of the project objectives.
Technical Competency

Technical Competence

  • Ensure personal, professional, technical, and engineering competency through continuing professional development
  • Understand the technical aspects of a project and develop design and engineering solutions with our in-house specialists or supply chain support as necessary.
  • Consolidation and collation of design and engineering documentation for internal approvals and presentation to the client as necessary.
Person Specification Qualifications
  • Engineering degree
    - Desirable
  • Higher National Certificate in Engineering
    - Desirable
  • Membership of appropriate technical / professional body
    - Desirable
  • IOSH Managing Safely or Level 2 Health & Safety in the Workplace or equivalent
    - Relevant training will be provided if required
Experience & Knowledge
  • Well organised with the ability to work to timescales and demonstrate attention to detail
    - Essential
  • Routine recording and reporting of information both verbal and numerical
    - Essential
  • Commissioning experience on a nuclear licenced site
    - Essential
  • Supplier witness testing
    - Essential
  • Experience of developing test documentation
    - Essential
  • General knowledge of…
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