Site Manager (Freelance/Temporary)

This is a temporary role running through the end of the year — with a good chance of extension until the end of March 2026

What will you do?

As an on-site manager, you will oversee and coordinate the execution of works at the SIF yard (Maasvlakte, Port of Rotterdam). This includes the installation of sensors, internal and external piping, and the forerunner on three monopiles. You will act as the primary point of contact between GBM Works, SIF, and all subcontractors during on-site execution.

There is a possibility that you may also be asked to manage a second site for the execution of a follow-up pump test.

Your role includes:

• Acting as GBM Works’ main representative at the SIF site
• Coordinating all on-site activities related to:
  • Sensor installation on monopiles
  • Internal and external piping installation
  • Forerunner installation
• Liaising with SIF yard representatives, subcontractors, Ecowende, and other stakeholders to align daily operations and logistics
• Leading daily toolbox talks and weekly coordination meetings
• Monitoring delivery, staging, and installation of equipment
• Ensuring safety inductions, access permits, and PPE requirements are met for all on-site personnel
• Ensuring compliance with HSSE management systems
• Tracking progress against the schedule and flagging any issues (e.g., installation quality, handover delays)
• Coordinating and supporting additional site activities as they arise during execution

GBM Works’ Story:

While working as an intern for an offshore contractor that builds offshore wind farms, a young engineer discovered that their ships and installation methods were far from sustainable. Marine life suffers from humanity’s efforts to replace fossil fuels with renewable sources, yet the infrastructure and techniques used for installation are still light years behind. Determined to change this, he set out to design his own solution.

That’s how, more than 7 years ago, Ben Arntz founded GBM Works and developed a disruptive and innovative method to silently install offshore foundations. Today, we are advancing our Vibrojet® tool for the next generation of XXL monopiles used in offshore wind energy. Our patented method addresses major challenges in the offshore wind industry, including harmful noise to marine life, potential delays, fatigue damage to piles, and scaling issues associated with current 'piling' methods.

Workplace

Our flexible workplace is located at the Maasvlakte, Rotterdam.

What do we offer?

• A great place to work
• Working together with a great (international) team on a sustainable future

We are a dynamic team of 25 professionals, united by diverse experiences, cultural backgrounds, and perspectives. More importantly, we foster an inspiring environment filled with highly motivated individuals who are driven to achieve ambitious goals.

About you

• Bachelor’s or Master’s degree in Engineering, Energy, Environmental Sciences, or a related field
• Proven experience in a similar on-site role
• Practical and hands-on mindset
• Excellent communication and collaboration skills
• Available full-time and based in the Netherlands

Recruitment agencies - no thank you!