Sustainability & Climate Consultant

About the role

Sia is seeking a motivated Consultant to support its Climate and Sustainability practice. You will work on internal projects that help clients navigate transformation, focusing on techno‑economic studies, data‑driven analysis and change management.

Key responsibilities

• Conduct techno‑economic and market studies related to climate initiatives.
• Coordinate and organise project activities, including people and culture change programmes.
• Perform document analysis, benchmarking and data analysis to generate insights.
• Prepare presentations, reports and workshop materials for internal knowledge sharing.
• Contribute to the creation of publications and facilitate workshops that disseminate best practices.

Required profile

• Master’s degree in Civil Engineering (preferred), Business Engineering, Economics or Management.
• Strong academic record and a genuine interest in sustainable development across sectors.
• Analytical mindset with the ability to synthesize complex information into clear conclusions.
• Autonomous, dynamic, result‑oriented and rigorous work style.
• Fluency in Dutch (mandatory) and proficiency in French and English; German is a plus.
• Eligibility to work in the country without employer‑provided work permit.

Required skills

What we offer

• Opportunity to develop consulting expertise in a fast‑growing, globally‑present firm.
• Exposure to cross‑sector sustainability projects and data‑AI topics.
• Collaborative, optimistic culture that values innovation and responsibility.