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Sustainability Reporting Specialist – CSRD Implementation

AVENTA Belgium Added on Aug 10, 2026
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This role acts as a central operator for a major European electricity transmission group, taking ownership of the technical and governance-related aspects of their sustainability disclosures. You will manage the end-to-end preparation of specific governance chapters for the 2026 reporting cycle and lead the development of a digital sustainability data catalog. Your work involves bridging the gap between various departments to ensure that every datapoint is audit-ready and accurately reflects the group’s progress.

Positioned at the heart of the energy transition, this role is critical because the company is among the first wave of CSRD implementers. You are not just filling out templates; you are building the governance architecture and digital infrastructure that will define transparency for the utility sector in Belgium and Germany. Your efforts directly influence how stakeholders perceive the company’s commitment to social responsibility and human rights.

This suits someone who possesses a master’s degree and at least five years of experience, combining deep technical knowledge of ESRS with the trilingual skills to navigate complex regulatory environments in Dutch, English, and French.

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What are the main missions and responsibilities of this role?

The primary focus of this role is the end-to-end implementation of the CSRD framework for the 2026 reporting cycle. You will be responsible for drafting the governance chapters of the sustainability statement, ensuring they meet strict ESRS standards. This includes documenting internal processes for human rights governance and supporting the group-wide due diligence implementation. Beyond drafting, you will own the delivery of an online sustainability data and policies catalog. This requires managing the project timeline and collaborating with digital and communication teams to ensure transparency and accessibility for all external stakeholders. You will also support the Double Materiality Assessment and general ESRS2 requirements. Coordinating the audit process is a vital component. You will act as the technical point of contact for internal teams and external auditors, ensuring that all 2026 data collection points are accurate, documented, and fully compliant with the evolving regulatory landscape across the Belgian and German entities.

Key learning opportunities for this job

Candidates will gain unparalleled hands-on experience in one of the first corporate implementations of the Corporate Sustainability Reporting Directive (CSRD). This is a rare opportunity to move past theory and actually build the reporting architecture for a large-scale, cross-border energy transition leader, providing a deep understanding of European Sustainability Reporting Standards (ESRS). You will also develop expertise in digital sustainability transformation. By leading the creation of an online data catalog, you will learn how to bridge the gap between static regulatory disclosures and dynamic digital communication, a skill set in high demand as ESG reporting matures. Exposure to cross-border regulatory environments and utility-specific ESG metrics will be a significant asset. Navigating the legal and operational nuances between Belgium and Germany while working with diverse departments like Finance, IT, and Infrastructure provides a holistic view of how sustainability is integrated into a major industrial group.

How does the ideal candidate look like (experience, skills)?

The ideal candidate brings approximately five years of professional experience specifically within the realm of sustainability reporting or ESG assurance. A master’s degree in finance, environmental science, or engineering is preferred, as it provides the analytical foundation needed to process complex data and regulatory requirements. Technical mastery of ESRS and the CSRD framework is a non-negotiable requirement. The hiring team is looking for someone who has already supported Double Materiality Assessments and understands the rigors of financial or ESG auditing processes, whether from a consultancy or an in-house corporate environment. Linguistic versatility is a critical gatekeeper for this role. You must be trilingual, with professional fluency in Dutch and English, and a strong proficiency in French. This allows you to communicate effectively with Belgian stakeholders and interpret local regulatory contexts accurately.

Advice to stand out and make a successful application

To stand out, focus your application on specific examples of reporting cycles you have managed or supported. Rather than listing tasks, explain the complexities of the data you handled and how you ensured it was audit-ready. Highlighting experience with ESRS gap analysis or materiality assessments will be particularly impactful. Since this role is trilingual, consider submitting parts of your portfolio or a cover letter that demonstrates your multilingual technical communication skills. Show that you can translate complex regulatory jargon into clear instructions for non-expert stakeholders in Dutch, French, and English. Research the specific challenges of transmission system operators (TSOs) in the energy transition. Demonstrating an understanding of how infrastructure projects and grid stability intersect with social and environmental governance will prove you have the strategic mindset needed to support the Group Social Sustainability Reporting Officer.

What aspects of the company's sustainability is this role likely to focus on?

The role is heavily weighted toward governance and transparency (G) within the ESG spectrum. You will be defining the structures that ensure human rights are protected throughout the supply chain and that the company’s internal controls are robust enough for public scrutiny under the CSRD. There is a strong focus on social sustainability reporting. By documenting processes for governance over human rights and supporting due diligence, you help the group manage its social impact and maintain its social license to operate in highly regulated European markets. Finally, the role supports the double materiality approach, which looks at both how sustainability issues affect the company and how the company’s activities impact society and the environment. This ensures that the energy transition the company leads is both ecologically sound and socially responsible.

What are the main challenges someone in this role might face?

One of the primary challenges will be the complexity of cross-entity coordination. Ensuring that reporting processes and data points are aligned between the Belgian and German headquarters requires significant diplomacy and technical precision, especially when dealing with different operational cultures and legacy systems. The timeline and regulatory pressure are also significant. Being in the 'first wave' of CSRD implementers means there are fewer templates to follow and more scrutiny from auditors. You will need to remain agile as European standards and interpretations continue to evolve during the project. Managing diverse stakeholders who may not have a sustainability background is a constant task. You will need to convince departments like IT, HR, and Asset Management of the importance of precise ESG data collection, often competing with their other high-priority operational responsibilities.

How could a typical day look like for someone in this position?

A typical day might begin with a cross-border synchronization meeting with the reporting team in Berlin to align on the documentation of human rights governance for the upcoming audit. You might spend the mid-morning analyzing data for the General Requirements (ESRS2) section of the sustainability statement. In the afternoon, your focus might shift to a project management session with the Digital and Communications teams. You would review the latest wireframes or data sets for the online sustainability catalog, ensuring that the technical disclosures are translated into a user-friendly digital format for stakeholders. The day often concludes with analytical work, such as reviewing the results of a Double Materiality Assessment workshop or preparing a stakeholder briefing in Dutch or French to explain new data collection requirements for the 2026 cycle.

What are the opportunities for professional growth and development in this role?

This role offers a clear path toward becoming a Senior Sustainability Reporting Manager or a Lead ESG Controller. Having a major CSRD implementation on your resume is a gold-standard credential that will be highly sought after as more companies fall under the directive’s scope. There is also the potential for specialization in digital ESG transformation. As companies move away from static PDF reports toward dynamic online disclosures, your experience building a sustainability catalog positions you at the forefront of a growing niche in the corporate world. Given the group's central role in the European energy sector, you will have high-level visibility with leadership. Success in this role could lead to strategic positions in corporate governance, compliance, or sustainability strategy within the wider energy and utility industry.

The main stakeholders you might be interacting with

You will interact daily with the Group Sustainability Reporting Manager and the Group Social Sustainability Reporting Officer, who provide the strategic direction for your workstreams. These internal experts will be your primary mentors and collaborators. External auditors and consultants are key stakeholders during the assurance process. You will need to defend the methodology used for data collection and governance documentation, ensuring that the group’s disclosures meet the 'limited assurance' and eventually 'reasonable assurance' standards. Internal functional leads across Finance, HR, IT, and Asset Management are also essential. You will act as a consultant to them, helping them understand their role in the CSRD process and ensuring the data they provide is timely, accurate, and properly documented.

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