Site Manager - HV/MV Substations

IOTA GROUP; Frankfurt; On-site; EUR 129,000 - 203,000; Full time

Job summary

IOTA Group is seeking an experienced Site Manager – HV/MV Substations to oversee the on-site execution of a 110 kV AIS substation project in Frankfurt, Germany. You will lead multidisciplinary teams, manage safety, quality, and scheduling, and coordinate interfaces with engineering and the customer.

The role requires 15+ years in HV substation EPC projects, fluency in English and French, and strong experience with IEC standards and protection/control systems.

Qualifications

• 15+ years in HV substation EPC construction projects.
• Strong background in electromechanical or electrical engineering with MV/HV substations knowledge.
• Proven experience managing construction on 110 kV AIS substations.
• Ability to lead multidisciplinary construction teams and subcontractors.
• Solid understanding of IEC standards, protection, control and substation construction.
• Experience with construction scheduling, QA/QC and HSE management.
• Proficiency in MS Project, AutoCAD, Microsoft Office or similar tools.
• H2V/B2V electrical accreditations or local equivalent.
• Fluent English and French mandatory; German is a plus.

Responsibilities

• Manage all site construction activities from mobilisation to RFC, energisation and handover.
• Coordinate civil, structural, high-voltage electrical, protection & control and commissioning activities.
• Supervise subcontractors and multidisciplinary site teams; ensure compliance with specs and contracts.
• Ensure effective site preparation, logistics, resource allocation and construction planning.
• Develop and monitor construction schedules, resource plans and KPIs.
• Coordinate engineering docs, drawings and interfaces with engineering teams and customer.
• Enforce HSE, QA/QC standards throughout execution; manage ITPs and quality inspections.
• Handle project risks, subcontractor performance and deviations; drive corrective actions.
• Lead progress meetings and maintain communication with engineering, procurement and commissioning teams.

Skills

Electrical engineering

Project management

Leadership

English and French fluency

German a plus

Tools

MS Project

AutoCAD

Microsoft Office

Job description

IOTA Group is an international engineering and technical assistance company supporting major industrial and energy projects worldwide.

For one of our leading partners in the energy and power transmission sector, we are seeking an experienced Site Manager – HV/MV Substations to oversee the construction and execution of a high-voltage electrical substation project in Frankfurt, Germany.

Job Description

As Site Manager, you will take overall responsibility for the on-site execution of a major 110 kV AIS substation project, ensuring compliance with safety, quality, technical, contractual and scheduling requirements.

The project involves the installation and integration of 110/11.5 kV power transformers, MV switchboards, AIS equipment, protection and control systems, SCADA and substation automation systems.

Key Responsibilities:

• Manage all site construction activities from mobilisation through Mechanical Completion, Ready for Commissioning (RFC), Energisation and Final Handover.
• Coordinate civil, structural, high-voltage electrical, protection & control and commissioning activities.
• Supervise subcontractors, installation teams and multidisciplinary site operations, ensuring compliance with technical specifications and contractual obligations.
• Ensure effective site preparation, logistics, resource allocation and construction planning.
• Develop and monitor construction schedules, resource plans, progress reports and project KPIs.
• Coordinate engineering documentation, technical drawings and construction interfaces with engineering teams and the customer.
• Implement and enforce HSE policies, Zero Harm principles and QA/QC standards throughout project execution.
• Oversee Inspection & Test Plans (ITPs), quality inspections and technical compliance.
• Manage project risks, subcontractor performance, contractual deviations and corrective actions.
• Coordinate Punch Lists, Non-Conformance Reports (NCRs) and close-out activities.
• Organise progress meetings and maintain effective communication with engineering, procurement, construction and commissioning teams.
• Report directly to the Construction Manager based in Grenoble, France.

Qualifications

• Minimum 15 years of experience in HV substation EPC construction projects.
• Strong background in Electromechanical or Electrical Engineering, with extensive knowledge of MV/HV substations and power systems.
• Proven experience managing construction activities on 110 kV AIS substations.
• Demonstrated ability to lead multidisciplinary construction teams and manage subcontractors.
• Strong understanding of IEC standards, electrical protection, control systems and substation construction requirements.
• Experience in construction scheduling, project coordination, quality assurance and HSE management.
• Knowledge of MS Project, AutoCAD, Microsoft Office or similar engineering/project management tools.
• H2V/B2V electrical accreditations or local equivalent.
• Excellent communication, organisational and leadership skills.
• Fluent English and French required.
• German is considered an advantage.

Additional Information

• Position: Site Manager – HV/MV Substations
• Starting Date: 16 November 2026
• Duration: 6 months (renewable)
• Contract Type: Freelance or Contract
• Languages: English and French mandatory; German is a plus
• Travel: Occasional business trips to Grenoble, France

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