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Sustainability Reporting Specialist – CSRD Implementation

Published on August 10, 2026

Project Snapshot

Location

Brussels, Belgium (Keizerslaan 20, 1000 Brussels)

Work mode

Hybrid – minimum 2 days on-site per week; occasional travel to Berlin

Contract type

Contract

Work regime

Full-time (100%)

Compensation

Competitive

Start date

To be confirmed

Duration

To be confirmed

Languages

Dutch: fluent (mandatory) | English: fluent (mandatory) | French: proficient (required)

Right to work

Valid Belgian/EU work authorisation required

Client

Confidential – European electricity transmission system operator

Description

A leading European electricity transmission system operator at the heart of Belgium's and Germany's energy transition. The Group operates across two main entities — one in Belgium and one in Germany — and plays a central role in ensuring the reliability and sustainability of electricity supply across both countries. As part of the first wave of CSRD implementers, the Group published its first CSRD-compliant sustainability report in March 2025 and is now entering a phase of process stabilisation, governance improvement, and data digitalisation.

Role overview

The Sustainability Reporting Specialist supports the Group Sustainability Reporting team in implementing and improving CSRD-compliant reporting processes across both entities. The role is positioned at Medior level (approximately 5 years of relevant experience) with a strong hands-on operational focus. The specialist works as a cross-functional connector, engaging stakeholders from Finance, Controlling, HR, Sustainability, Infrastructure, Asset Management, IT, and external auditors across Belgium and Germany.

Required Qualification

The role covers three workstreams with clearly defined time allocations.

Workstreams and responsibilities

Workstream 1 — Governance chapters for the 2026 CSRD audit (35%)

Reporting to the Group Social Sustainability Reporting Officer.

• Act as a cross-entity connector across client and 50Hertz Transmission Germany for governance-related matters

• Lead end-to-end preparation of the two governance-related chapters of the 2026 Sustainability Statements

• Support the Group-wide implementation of a due diligence process

• Drive stakeholder engagement for the 2026 data collection covering 2–3 governance-related datapoints for the Sustainability Statements

• Document existing processes for governance over human rights

• Coordinate the CSRD audit process with internal stakeholders for the governance chapters

Workstream 2 — General requirements implementation (ESRS2) (30%)

Reporting to the Group Sustainability Reporting Manager.

• Prepare disclosures for the General/ESRS2 section of the 2026 Sustainability Statements

• Support operational aspects of the Double Materiality Assessment

• Engage stakeholders across the Group to ensure alignment and accuracy of reported information

Workstream 3 — Online sustainability data and policies catalog (35%)

Reporting to the Group Sustainability Reporting Manager.

• Lead and own the delivery of an online sustainability catalog on the Elia Group website, ensuring it is live according to the agreed project plan

• Implement decisions taken by the Group sustainability reporting and Communications teams for this deliverable

• Collaborate across Communication, Digital, Strategy, Sustainability, and Compliance departments

Requirements

Education

• Master's degree, preferably in finance, environmental science, engineering, economics, sustainability management, or a related field

Experience

Must-have:

• Approximately 5 years of relevant professional experience (4–7 years) in sustainability reporting, CSRD/ESRS, and related assurance activities

• Direct, hands-on knowledge of ESRS and the CSRD reporting framework

• Experience with Double Materiality Assessment methodology per ESRS/CSRD

• Prior experience supporting ESG or financial assurance processes – from a consultancy or in-house sustainability reporting team

Nice-to-have:

• Experience with other ESG frameworks: GRI, SASB, TCFD

• Exposure to multi-entity or cross-border sustainability reporting environments

• Energy sector or regulated utility background

Skills

• Analytical and critical thinking: ability to process and synthesise complex sustainability and governance data

• Project and time management: capable of managing multiple reporting workstreams simultaneously with tight deadlines

• Communication: ability to translate complex CSRD requirements into clear stakeholder-facing content in multiple languages

• Collaboration and autonomy: team player who also works with high accountability for their own deliverables

Languages — critical gate

• Dutch: professional fluency – mandatory (team working language)

• English: professional fluency – mandatory (Group reporting language, 50Hertz interface)

• French: proficient – required (Belgian stakeholder communications, regulatory context)

All three languages are required. Profiles unable to operate in Dutch and English cannot be considered.

Additional information

Work regime: 100% full-time

Travel: Occasional travel to the Berlin headquarters (50Hertz)

For non-EU candidates: a valid work permit authorising employment in Belgium and a valid Belgian residence permit are required before any assignment can commence.

Summary

  • Bruxelles, Belgique
  • Freelance
  • Based on experience

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