Multiple Mechanical Fitters
CV-LibraryNationwidecontractPosted: 17 July 2026
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Rubicon Consulting is recruiting experienced Mechanical Fitters on behalf of Tier 1 framework contractors delivering critical national infrastructure across National Grid, SSEN Transmission and SP Energy Networks (SPEN) programmes. These are long-term, rolling contract positions offering continuity of work across multiple live substation and transmission projects for candidates operating through their own Limited Company.
Successful applicants will be deployed to HV/EHV substation and associated mechanical installation works, with the opportunity to move between projects as programme demand dictates — offering strong job security and sustained earning potential for the right candidates.
Key Responsibilities:
* Mechanical installation, assembly and fit-out of plant and equipment within live and new-build HV/EHV substation environments
* Installation of switchgear, transformers, busbars, earthing systems, cable support systems, structural steelwork and associated mechanical fixings
* Installation and mechanical support of GIS (Gas Insulated Switchgear) equipment in line with manufacturer and client specifications
* Working from engineering drawings, method statements and RAMS to a high standard of accuracy and finish
* Carrying out pre-use checks on plant and equipment and reporting defects through the correct channels
* Working safely and collaboratively within multi-disciplinary site teams across mechanical, electrical and civils
* Completing all required quality documentation, ITPs and sign-off records as work progresses
* Maintaining full compliance with client and framework-specific site safety standards at all times
Requirements:
* Proven experience as a Mechanical Fitter within high-voltage substation, power transmission or wider critical infrastructure environments
* Hands-on experience with busbar installation and alignment, earthing systems, and GIS (Gas Insulated Switchgear) equipment
* Valid CSCS/ECS card and relevant trade qualifications (NVQ Level 2/3 Mechanical Engineering or equivalent)
* Strong understanding of RAMS, permit-to-work systems and safe systems of work on live infrastructure sites
* Willingness and ability to travel to and work across multiple UK project sites as required
* Must operate and be engaged through a Limited Company for the duration of the contract
Tickets & Certifications:
Candidates must either already hold, or be willing to invest in obtaining, the following tickets to maximise deployability across projects. Rubicon can advise on training routes for candidates without a full portfolio:
-Lifting Operations Supervisor (LOLER Appointed Person / Lift Supervisor)
-Slinger/Signaller
-Telehandler (RTITB/CPCS or equivalent)
-360° Excavator / Roto Telehandler
-IPAF (MEWP categories relevant to site — e.g. 1b/3a/3b)
-First Aid at Work (desirable)
-Relevant Client Authorisations (NG persons, SSE or SPEN.)
Candidates without a full ticket portfolio are still encouraged to apply, provided they are committed to investing in the additional qualifications above to broaden their eligibility across all three frameworks.
Contract Details:
-Engagement strictly via Limited Company (Outside IR35)
-Opportunity to work across National Grid, SSEN Transmission and SPEN frameworks as project demand requires
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
Rubicon Consulting is recruiting experienced Mechanical Fitters on behalf of Tier 1 framework contractors delivering critical national infrastructure across National Grid, SSEN Transmission and SP Energy Networks (SPEN) programmes. These are long-term, rolling contract positions offering continuity of work across multiple live substation and transmission projects for candidates operating through their own Limited Company.
Successful applicants will be deployed to HV/EHV substation and associated mechanical installation works, with the opportunity to move between projects as programme demand dictates — offering strong job security and sustained earning potential for the right candidates.
Key Responsibilities:
* Mechanical installation, assembly and fit-out of plant and equipment within live and new-build HV/EHV substation environments
* Installation of switchgear, transformers, busbars, earthing systems, cable support systems, structural steelwork and associated mechanical fixings
* Installation and mechanical support of GIS (Gas Insulated Switchgear) equipment in line with manufacturer and client specifications
* Working from engineering drawings, method statements and RAMS to a high standard of accuracy and finish
* Carrying out pre-use checks on plant and equipment and reporting defects through the correct channels
* Working safely and collaboratively within multi-disciplinary site teams across mechanical, electrical and civils
* Completing all required quality documentation, ITPs and sign-off records as work progresses
* Maintaining full compliance with client and framework-specific site safety standards at all times
Requirements:
* Proven experience as a Mechanical Fitter within high-voltage substation, power transmission or wider critical infrastructure environments
* Hands-on experience with busbar installation and alignment, earthing systems, and GIS (Gas Insulated Switchgear) equipment
* Valid CSCS/ECS card and relevant trade qualifications (NVQ Level 2/3 Mechanical Engineering or equivalent)
* Strong understanding of RAMS, permit-to-work systems and safe systems of work on live infrastructure sites
* Willingness and ability to travel to and work across multiple UK project sites as required
* Must operate and be engaged through a Limited Company for the duration of the contract
Tickets & Certifications:
Candidates must either already hold, or be willing to invest in obtaining, the following tickets to maximise deployability across projects. Rubicon can advise on training routes for candidates without a full portfolio:
-Lifting Operations Supervisor (LOLER Appointed Person / Lift Supervisor)
-Slinger/Signaller
-Telehandler (RTITB/CPCS or equivalent)
-360° Excavator / Roto Telehandler
-IPAF (MEWP categories relevant to site — e.g. 1b/3a/3b)
-First Aid at Work (desirable)
-Relevant Client Authorisations (NG persons, SSE or SPEN.)
Candidates without a full ticket portfolio are still encouraged to apply, provided they are committed to investing in the additional qualifications above to broaden their eligibility across all three frameworks.
Contract Details:
-Engagement strictly via Limited Company (Outside IR35)
-Opportunity to work across National Grid, SSEN Transmission and SPEN frameworks as project demand requires
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