# Commissioning Expert OSS Onshore/Offshore at TIS GmbH

> Remote · Germany · Unspecified · Other · open. Source: https://alderhq.app/jobs/recruitee%3Atisgmbh%3A2283282 (read 2026-11-10).

## Facts (observed)

- Company: [TIS GmbH](https://alderhq.app/companies/tis-gmbh)
- Location text: Charlottenburg, Berlin, Germany
- Where it can be done from (inferred): Remote · Germany (evidence: "Location: Charlottenburg, Berlin, Germany")
- Posted: 2026-02-24 (259 days ago)
- First seen by alder: 2026-11-07 · last verified: 2026-11-07
- Reposted: 0 times · edited: 0 times
- Apply on the employer's site: https://tisgmbh.recruitee.com/o/commissioning-expert-oss-onshoreoffshore

## Pay and sponsorship

- Posted pay: not posted
- Market band for similar posted roles (Berlin, n 148): p25 €42k, median €56k, p75 €80k

## Description (the employer's text)

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 (FiFi) 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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Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/recruitee%3Atisgmbh%3A2283282 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.