Commissioning Expert Secondary Systems (Offshore Substations, Baltic Sea)

T.I.S. GmbH is looking for a Commissioning Expert Secondary Systems for the commissioning of two offshore substation platforms in the German Baltic Sea. You work on the owner's side for a German transmission system operator within the OSS sub-project of a grid connection scheme covering platform, export cable, land cable and onshore substation. Your subject is the secondary technology: protection, control, LV cabling and the signal chain between them. You advise the client's commissioning team, witness and run tests on the platforms, and make sure what was installed matches what was specified.

• Location: Offshore, from Rostock
• Start: End of 2026
• Duration: Until 30.09.2027, extension possible
• Workload: Rotation based work
• Contract: [Freelance]

Your tasks

• Advise the client on the secondary-systems commissioning of both platforms, from mechanical completion through energisation
• Review and witness LV cabling and communication wiring for protection and control systems against drawings, schematics and specifications
• Prepare, run and document signal tests and loop checks between field devices, protection relays, control systems and the substation SCADA
• Check the integration and testing of secondary components supplied by different contractors, and verify interfaces between them
• Record deviations, raise punch items and follow them through to close-out with the contractors
• Verify commissioning documentation, test records and as-built status before handover
• Report progress, open points and risks to the client's commissioning lead

What you bring

• Electrical engineering background, as a degree or as equivalent professional experience
• At least 5 years' experience in integrating and testing components and devices in electrical systems, ideally on offshore platforms
• Hands-on experience commissioning secondary components and running signal tests
• Experience with LV cabling and communication wiring for protection and control on offshore substations
• Working knowledge of DIN VDE, IEC and the relevant offshore codes (DNV)
• Fit for offshore work and willing to travel in Germany and abroad; valid GWO and offshore medical, or the readiness to obtain them before start