Electrical Engineer

Ingénieur électricien

Mercury est le leader européen des solutions de construction.

Electrical Engineer, Paris, France
Mercury is the European leader in construction solutions.

We build and manage complex engineering & construction projects for the world’s leading corporations. Our solutions help deliver technologies and life changing advancements that connect people, communities, and businesses, giving them the power to achieve incredible things. Our people have the courage to be innovative. Their determination and sharp focus enable us to deliver with certainty, time and time again.

We deliver our clients’ visions through leading edge construction solutions across multiple sectors, including Enterprise Data Centres, Advanced Technology & Life Sciences, Hyperscale Data Centres, Fire Protection.

At Mercury, it is our duty to encourage and back our people to realise their vision of themselves. We place them at the heart of what we do, providing challenging opportunities to develop within a great team in a supportive environment that allows them to reach their full potential.

Scope Of The Role

Reporting to the Electrical Project Manager, the Electrical Design Engineer will support the development, coordination and delivery of electrical building services designs for mission-critical and data centre projects from concept through detailed design, construction, commissioning and handover.

Working closely with consultants, vendors, subcontractors and multidisciplinary project teams, the successful candidate will ensure designs are technically compliant, fully coordinated and aligned with client requirements, project specifications and programme milestones.

The role will also provide technical support to project delivery teams throughout procurement, installation, testing and commissioning activities.

Key Responsibilities Of The Role

Design Development & Coordination

• Develop, review and coordinate electrical building services designs throughout all project stages from concept to completion.
• Support the production and review of electrical design deliverables including drawings, specifications, calculations, technical submittals and equipment schedules.
• Coordinate with consultants, specialist vendors, subcontractors and internal project teams to ensure timely delivery of design information.
• Review consultant and vendor design packages to ensure compliance with client requirements, project standards and applicable regulations.
• Review and manage RFIs, technical queries and design change requests throughout the project lifecycle.
• Participate in multidisciplinary design coordination meetings and BIM reviews to identify and resolve design clashes and interface issues.
• Maintain electrical design trackers, asset registers and equipment schedules.

Technical Engineering

• Review and coordinate electrical infrastructure designs including:
• HV and MV distribution systems
• LV power distribution systems
• Standby generation systems
• UPS systems and critical power infrastructure
• Switchgear and protection systems
• Earthing and lightning protection
• Lighting and emergency lighting systems
• Small power systems
• Building Management Systems (BMS)
• Electrical Monitoring Systems (EMS)
• Security and ICT infrastructure
• Fire alarm and life safety systems
• Ensure coordination between electrical, mechanical, CSA, controls and commissioning disciplines.
• Evaluate alternative technical solutions and support value engineering initiatives while maintaining system reliability and redundancy requirements.
• Support procurement teams in equipment selection and technical evaluations.

Construction & Commissioning Support

• Provide technical support to site teams during installation, testing and commissioning activities.
• Participate in Factory Acceptance Testing (FAT).
• Participate in Site Acceptance Testing (SAT).
• Support Integrated Systems Testing (IST) and commissioning activities.
• Assist with energisation planning and system handover activities.
• Support the preparation of O&M manuals, as‑built documentation and project close-out deliverables.
• Monitor design deliverables against project programme requirements and identify potential risks to procurement and construction activities.

Pre-Construction & Continuous Improvement

• Support tender reviews and technical bid evaluations.
• Assist with constructability reviews and design risk assessments.
• Contribute to lessons learned workshops and continuous improvement initiatives.
• Provide mentoring and technical guidance to graduate and junior engineers where required.