Authorised Person

Authorised Person

Full-Time 40000 - 50000 £ / year (est.) No working from home possible
Mercury

At a Glance

  • Tasks: Ensure electrical safety and compliance on construction sites while managing energisation and isolation processes.
  • Company: Join Mercury, the European leader in innovative construction solutions.
  • Benefits: Competitive salary, training opportunities, and a commitment to safety and equality.
  • Other info: Opportunity for career growth and development in a supportive team.
  • Why this job: Make a real impact in a dynamic environment focused on safety and engineering excellence.
  • Qualifications: Qualified electrician with experience in commissioning and troubleshooting electrical systems.

The predicted salary is between 40000 - 50000 £ per year.

Overview

Mercury is the European leader in construction solutions. We build and manage complex engineering follow safe working practices. Understand Mercury site-specific ESSOW (Electrical Safe System of Work). Review and understand Sub-Contractor COHE (Control of Hazardous Energies) and Sub-Contractor Electrical RAMS; ensure works align with client directives.

Operational control of LOTO systems and safe switching (Energisation/Isolations) during the commissioning phase. Ensure warning signs are in place and checked regularly; report electrical incidents to SAP and Energy Marshall. Ensure proper segregation of hazardous areas and correct use of Electrical PPE; secure areas under permit control. Complete training deemed necessary by Mercury; identify hazards and implement mitigation measures. Assist Senior Authorised Persons with internal audits (Self-Assessment COHE Audit, inspection of temporary electrics).

Be conversant with arc flash mitigation, PPE selection, condition and maintenance; authorise Energisation and Isolation Requests when criteria are met for the nominated voltage range; follow Senior Authorised Person instructions. Provide evidence of required qualifications (e.g., colour vision test) if not provided during proof of qualification.

Technical / Essential Criteria

  • Be a qualified electrician awarded the National Craft Certificate or equivalent, verified by Naric, or have a suitable electrical award equivalent to Level 6 or higher on the National Framework of Qualifications.
  • Ability to interpret and work from project drawings (SLDs, Wiring Diagrams, schematics) and understand EN and local code regulations; stay conversant with latest local electrical regulations.
  • Complete recognised courses in Verification, Testing and Certification where required.
  • Experience inspecting, commissioning, troubleshooting control systems and power circuits; perform commissioning duties (MCCs, VSDs, distribution panels, motors, lighting, small power circuits).
  • Demonstrate understanding of policies and work methods for commissioning electrical equipment; interpret documentation such as Punchlist, As Built Procedures, Vendor Manuals.
  • Perform testing (Insulation Resistance, Point to Point, grounding) with appropriate equipment; ensure pre-connection/dead test results are compliant; take live readings post-energisation and record results; perform Live Dead Live testing as required.
  • Execute switching schedules/notes post-approval; perform safe energisations and isolations; apply correct tags to equipment awaiting energisation; assist in the commissioning process from Level 1 to Level 5.
  • Enforce Electrical Permit to Work system; manage electrical safety permits for the relevant voltage range (Low/Medium Voltage).
  • Establish positive working relationships with site supervisors, peers and vendors; review commissioning processes; assist in electrical incident investigations.
  • Monitor PPE and safety equipment; advise on calibration or replacement as required; have completed a recognised MV/HV switching course if appointed as MV Authorised Person; minimum three years’ experience working on MV systems.

Communication / Reporting

Manage Mercury’s “In Progress” snagging system to ensure safe and controlled works; report electrical events to SAP; issue weekly progress reports highlighting changes in electrical conditions. Maintain timely, clear, and precise communication with SAP and CxA regarding switching operations; communicate concerns to the Person in Charge of an Electrical Installation and Senior Engineer.

Equality

Mercury is an equal opportunities employer.

Authorised Person employer: Mercury

Mercury is an exceptional employer, offering a dynamic work environment in London where safety and innovation are at the forefront of our operations. We prioritise employee growth through comprehensive training programmes and encourage a culture of collaboration and respect, ensuring that every team member feels valued and empowered. With a commitment to excellence in construction solutions, we provide our employees with the opportunity to work on complex engineering projects while adhering to the highest safety standards.

Mercury

Contact Details:

Mercury Recruitment Team

We think you need these skills to ace Authorised Person

Electrical Safety Systems
Control of Hazardous Energies (COHE)
Lockout/Tagout (LOTO) Systems
Electrical PPE Usage
Arc Flash Mitigation
Commissioning Electrical Equipment
Interpreting Project Drawings