Senior Authorised Person – Data Centre Project (Frankfurt, Germany)
€95,000 – €110,000 + Rotation + Accommodation + Travel + €32,000 Net Living Allowance
Contract Type: Full-Time / Permanent
Location: Frankfurt, Germany
An experienced Authorised Person (Electrical) is required to join a major data centre project in Frankfurt, Germany. This is a critical site-based role, responsible for the safe operation, testing, and commissioning of electrical systems (LV/MV) across the site. You will work closely with Senior Authorised Persons, Energy Marshalls, and the Commissioning team to enforce electrical safety procedures, manage permits, and support energisation activities.
This is a hands-on role for qualified electricians or electrical engineers with strong high-voltage and medium-voltage experience. The position offers exposure to technically complex, mission-critical data centre infrastructure and a collaborative, safety-driven work environment.
Key Responsibilities
* Enforce Mercury’s Electrical Safe System of Work (ESSOW) and ensure adherence to Control of Hazardous Energies Procedures
* Issue, approve, and manage permits for all LV and MV electrical works
* Follow Lock-Out Tag-Out (LOTO) procedures and permit-to-work systems to ensure safe energisation and isolation
* Conduct regular audits, inspections, and reporting of site electrical safety
* Ensure segregation of hazardous areas and proper use of PPE
* Assist in internal audits such as COHE self-assessments and temporary electrics inspections
* Support Senior Authorised Persons to remain compliant with site safety standards
* Identify potential hazards and implement mitigation measures
* Perform testing, commissioning, and energisation of electrical systems including MCCs, VSDs, distribution panels, motors, lighting, and small power circuits
* Review and interpret project drawings, SLDs, wiring diagrams, schematics, and vendor manuals
* Conduct insulation resistance, point-to-point, grounding, and live-dead-live testing
* Execute switching schedules in coordination with the Energy Marshall and SAP
* Inspect and sign off panels, perform pre-energisation checklists, and approve energisation requests within nominated voltage ranges
* Participate in commissioning activities from Level 1 through Level 5, supporting the full system handover
* Monitor and advise on PPE and safety equipment condition, ensuring calibration and replacements as needed
* Assist in electrical incident investigations
* Maintain accurate records in Mercury’s snagging and progress systems
* Report all electrical events to SAP and the Commissioning Authority (CxA) promptly
* Issue weekly progress reports highlighting changes in electrical conditions
* Provide timely updates and guidance to project engineers, site supervisors, and commissioning teams
Essential Criteria
* Qualified electrician (National Craft Certificate or equivalent Level 6 qualification) or equivalent electrical engineering award
* Minimum 3+ years’ experience on MV systems, with additional LV experience preferred
* Completed recognised MV/HV switching course if nominated for MV Authorised Person
* Strong understanding of electrical testing, verification, and commissioning procedures
* Proven experience delivering HV/MV infrastructure projects, including data centres, DNO/IDNO networks, or power generation facilities
* Knowledge of EN and local electrical regulations and standards
* Experienced in supervising advanced cable works, phasing, testing, and spiking (where licenced)
What’s on Offer
* €95,000 – €110,000 base salary, dependent on experience
* Full rotational package, including accommodation and travel
* Work on a technically complex, high-profile data centre project in Germany