Project Manager

GSES

Operations · Full-time Rotterdam, Netherlands · Remote Posted on Oct 9, 2026

Do you want to turn sustainability ambitions into real-world impact?

At GSES, we make sustainability measurable and actionable at organisational, product, asset, and event levels. Through our platform and the Nature Impact Score (NIS), we provide retailers and manufacturers with clear insights into the environmental impact of their products. This enables them to make better decisions and communicate their sustainability efforts with confidence.

This is becoming increasingly important. We are also working on exciting projects in the retail sector with clients such as ACTION, Leen Bakker, Xenos, and Kwantum.

As our client base continues to grow, we are looking for an experienced Project Manager who can turn sustainability ambitions into successful implementations. Someone who takes ownership, brings structure to complex projects, and ensures that great ideas become real-world solutions. That's where you come in.

Your role

As a Project Manager, you will help clients turn their sustainability ambitions into practical solutions. You translate their needs into clear action plans, keep projects on track, and ensure everyone knows what needs to happen next.

Of course, you won't be doing this alone. You will work closely with clients and colleagues in an international team, based in the heart of Rotterdam.

What will you do?

• Lead client projects from kick-off to delivery, managing scope, timelines, milestones, and deadlines
• Translate client needs into clear, practical, and achievable project plans
• Act as the main point of contact for clients throughout the implementation process
• Coordinate internal teams, including data specialists, IT professionals, and sustainability experts, to ensure smooth project execution
• Monitor progress, identify potential risks early, and keep stakeholders informed
• Identify opportunities to improve ...