Electrical Supervisor

CTS Group; Seinäjoki; On-site; EUR 70,000 - 100,000; Full time

Benefits offered by this job

Competitive compensation

Lunch benefit

Job summary

CTS Group, a leading data centre contractor, is hiring four Electrical Site Supervisors to support a large-scale data centre project. Each supervisor will own one electrical scope area: Energy Marshall, HV/MV Systems, Generator Package, or Containment & Small Power.

You will oversee installation activities on site, coordinate subcontractors and resources, and ensure safety, quality, and delivery in line with the project programme.

Qualifications

• Relevant electrical trade qualification, technical qualification in Electrical Engineering, or equivalent practical experience.
• Strong communication and leadership skills for on-site coordination.
• Fluency in English and ability to read drawings and QA/QC documentation.

Responsibilities

• Supervise day-to-day electrical installation activities on site.
• Coordinate subcontractors, labour, materials, and access requirements to ensure installations meet drawings and program.
• Oversee specific scope areas: Energy Marshall, HV/MV, Generator, Containment & Small Power.
• Ensure compliance with QA/QC procedures and safety standards including permit-to-work systems.
• Support testing, commissioning and energization activities.
• Maintain site records including daily reports and progress updates.

Skills

Electrical site supervision

Coordination

Leadership

English fluency

Education

Electrical trade qualification or degree

Tools

Microsoft Office

Job description

About Us

CTS Group is a leading data centre general contractor delivering mission-critical infrastructure for global hyperscale and enterprise clients. Our projects require high-performance electrical systems delivered safely, efficiently, and to the highest quality standards.

The Role

We are hiring four Electrical Site Supervisors to support the delivery of a large-scale data centre project. Each supervisor will take ownership of one of the following areas of the electrical scope:

• Energy Marshall (Temporary Power & LOTO)
• HV/MV Systems Supervisor
• Generator Package Supervisor
• Containment & Small Power Supervisor

You will oversee installation activities within your assigned scope, coordinate subcontractors and resources, and ensure the works are delivered safely, to the required quality, and in line with the project programme.

Key Responsibilities

• Supervise day-to-day electrical installation activities on site.
• Coordinate subcontractors, labour, materials, and access requirements to ensure installations are completed in accordance with drawings, specifications, method statements, and the project programme.
• Oversee works within your specialization:
  • Energy Marshall: manage temporary power, energization processes, LOTO procedures, and safe energization control.
  • HV/MV: installation of switchgear, transformers, cabling, terminations, and energization readiness.
  • Generator Package: installation and integration of generator systems, fuel systems interfaces, and testing.
  • Containment & Small Power: cable tray, ladder, trunking systems, and low-voltage small power installations.
• Ensure compliance with QA/QC procedures, ITPs, and inspections.
• Enforce strict adherence to health & safety standards, including permit-to-work systems.
• Support testing & commissioning (T&C) and energization activities.
• Monitor installation progress against the project programme, identify emerging delays, and coordinate recovery actions to protect key delivery milestones.
• Identify and resolve technical, coordination, and installation issues.
• Liaise with QA/QC, HSE, design, and commissioning teams.
• Maintain accurate site records, including daily reports, labour hours, completed quantities, inspection status, constraints, and progress updates.

Requirements

• Relevant electrical trade qualification, technical qualification in Electrical Engineering, or equivalent practical experience.
• 5+ years of electrical site supervision experience on large-scale construction projects, preferably in data centres or other mission-critical environments.
• Proven experience in at least one of the following areas:
  • Energization / energy isolation (LOTO) and temporary power
  • HV/MV electrical systems
  • Generator installations and integration
  • Cable containment and LV distribution / small power

• Experience in data centres or mission-critical environments is strongly preferred.
• Strong understanding of electrical installation practices, QA/QC requirements, and safety procedures.
• Ability to read and interpret electrical drawings and schematics.
• Experience coordinating multiple subcontractors on site.
• Strong focus on safety, quality, and schedule delivery.
• Strong communication, leadership, and organizational skills.
• Fluency in English.
• Good working knowledge of Microsoft Office for site reporting and progress updates.

Preferred Qualifications

• Previous experience on hyperscale data centre projects.
• Familiarity with energization procedures and commissioning workflows.
• Knowledge of international standards (IEC, ISO, etc.) and local electrical codes.
• Experience working in fast-track, multi-contractor environments.

What We Offer

You’ll be part of a high-profile data centre project and work alongside an experienced international delivery team in a dynamic, fast-paced site environment. With responsibility for a defined area of the electrical scope, you’ll have the opportunity to work closely with subcontractors and different project teams, solve challenges as they arise, and see your work through from installation to energization and commissioning. We offer competitive compensation and a lunch benefit, along with the opportunity to gain hands-on experience in a complex, large-scale data centre project.