Senior Sustainability Consultant

Forvis Mazars is a leader in audit, tax and advisory services, operating worldwide across 100+ countries and territories. Join our 40,000+ strong team to grow your career through global opportunities, diverse projects and continuous learning. Belong to a supportive environment where your unique perspective is valued and success comes from working together. Impact with your bold ideas and help drive us forward.

Your Role: Autonomy, Expertise, and Growth

We are seeking a driven Senior Advisory Consultant to support Sustainability Reporting & Assurance and Internal Controls related missions. In this role, you will play a pivotal part in delivering sustainability reporting and assurance services, while also supporting clients with internal audit and internal control engagements.

Key Responsibilities

• Deliver high-quality projects in collaboration with managers, including:
• Agreeing on project timetables, scopes, and deliverables
• Conducting and reviewing fieldwork for both sustainability and internal control assignments
• Managing reporting and overall project coordination
• Review data sets and develop detailed, clear working papers – with the ability to start from a blank page
• Research and contribute to improvements in sustainability reporting, assurance, and internal control best practices
• Prepare and review draft reports before submission to senior management

• Internal Controls Focus:
• Perform and review internal audit procedures and internal control assessments
• Evaluate and strengthen clients’ internal control frameworks to ensure compliance and operational efficiency
• Provide recommendations for process improvements and risk mitigation
• Sustainability Focus:
• Work on assurance and support clients in implementing sustainability strategies and integrating ESG considerations into governance and reporting processes on consultancy engagements
• Business development : Assist in developing business plans, pitches, and client proposals for sustainability and internal control services
• Work with colleagues across various countries on international projects
• Build strong relationships with client staff and act as a Mazars ambassador
• Be flexible for occasional short-term international trave

About you:

• Education: Master’s degree in Economics, Business Engineering, Engineering, Environmental Science, or Sustainability
• Experience: 2–3 years of experience in a relevant field such as sustainability reporting, measurement, assurance, or internal audit/internal controls
• Technical Knowledge:
• Strong understanding of sustainability reporting frameworks (GRI, Value Reporting Foundation, ISSB)
• Familiarity with legislative frameworks (NFRD, CSRD, EU Taxonomy)
• Knowledge of internal control and risk management frameworks (e.g., COSO, ISO standards)
• Experience with internal audit methodologies and assurance processes
• Language Skills: Fluency in Dutch or French and English
• Analytical & Process Skills:
• Strong observational skills with a love for analysing and optimising processes
• Ability to start from a blank page and structure clear, detailed working papers
• Critical thinking and problem-solving mindset
• Soft Skills:
• Hands-on and pragmatic approach to solving client challenges
• Excellent communication and interpersonal skills to build strong client relationships
• Ability to work collaboratively in international teams
• Project Management:
• Strong organisational skills to manage multiple projects and deadlines
• Ability to agree on scopes, deliverables, and timetables with stakeholders
• Attention to Detail:
• Deliver high-quality work with meticulous accuracy
• IT Literacy:
• Proficiency in Excel, Word, and PowerPoint
• Familiarity with data analysis tools and digital reporting platforms (an asset)
• Flexibility:
• Willingness to travel internationally for short-term assignments
• Certifications (a plus):
• CIA, ACCA, or sustainability-related certifications (e.g., GRI Certified, ISSB training)

Ready to make a difference?

We offer a dynamic work environment with opportunities for professional growth and development. If you’re a sustainability champion with a strong work ethic and a collaborative spirit, we encourage you to apply!