Commissioning Expert - Mechanical & Auxiliary Systems (Offshore / Onshore Substations)

We’re Hiring: Commissioning Expert - Mechanical & Auxiliary Systems (Offshore / Onshore Substations)

Are you a seasoned commissioning professional with a strong background in mechanical and auxiliary systems?

We are looking for a Commissioning Expert to support the delivery, integration, and testing of auxiliary mechanical systems on offshore and onshore substations — as part of large-scale renewable energy infrastructure across Europe.

This is a long-term assignment (until end of 2027) on major offshore wind projects.

Locations: The Netherlands (Vlissingen, Schiedam, Stormpolder), Offshore Baltic Sea, Berlin

Type: Freelance or employment

Level: Professional / Expert

Your Mission:

Plan, execute, and supervise commissioning of mechanical & auxiliary systems, including HVAC, LV switchboards, firefighting systems, cranes, communication, and safety systems.
Ensure full compliance with technical specifications, certification, and HSE standards.
Conduct FAT/SAT (Factory and Site Acceptance Testing), signal testing, and inspections.
Identify and report deviations and maintain up-to-date snag lists, punch lists, and documentation.
Support partial and final system acceptance in factory, yard, and offshore locations.
Collaborate with construction, QA/QC, and engineering teams for smooth integration.

Your Profile:

5+ years of experience in commissioning and integration of auxiliary/mechanical systems on substations or industrial platforms.
In-depth knowledge of DIN VDE, IEC standards, and relevant certification requirements.
Experience with QA/QC processes during fabrication and commissioning phases.
Valid GWO (Global Wind Organisation) certification for offshore work.
Fluent English required; German is a plus.

Ready to take on the challenge — or know someone who fits? Let’s connect!

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Tis Gmbh