ACT is the world’s leading provider of market-based sustainability solutions. Working at the center of the global energy transition, ACT helps organizations hit their climate action targets, no matter how ambitious. Since 2009, ACT has become a trusted brand in high-impact climate projects, renewable energy markets, energy efficiency, renewable fuels, and carbon credits. 

What you will do: 

• Oversee and coordinate corporate income tax (CIT) compliance, including tax returns, tax accounting, reconciliations, and audit support across multiple jurisdictions.
• Manage indirect tax compliance, such as VAT, including returns, intra-community reporting, and transaction-level reviews across multiple jurisdictions.
• Adaptability to support the preparation and review of international tax compliance, including transfer pricing documentation, local files, master file inputs, and CbCr reports.
• Ensure timely delivery of all tax filings and statutory tax disclosures in collaboration with internal teams and external tax advisors.
• Monitor changes in global and local tax regulations (e.g., Pillar 2, DAC6, BEPS) and assess implications for reporting and compliance.
• Maintain and improve tax control processes and documentation for audit readiness.
• Work with Finance to ensure accurate tax provisioning and alignment between tax and accounting treatment.
• Contribute to internal process improvements that increase efficiency and data quality in tax reporting.
• Collaborate with external tax advisors while strengthening internal capabilities, with the aim of reducing reliance and managing costs more effectively over time.
• Advising on all tax aspects of commercial structuring for new deals, business models, and market entries.
• Support in tax projects like implementation of the global tax strategy, ensuring alignment across jurisdictions and functions.

Your profile:  

• Master’s degree in Tax Law, Fiscal Economics, Accounting, or a related discipline, or a recognized professional qualification (e.g. CPA, ACCA, ADIT).
• 5+ years’ of relevant experience ideally from a Big 4 or multinational environment. • Demonstrated experience with CIT, VAT, and preferably international tax compliance.
• Solid understanding of tax accounting concepts, including reconciliations and compliance-related filing processes.
• Excellent written and verbal communication skills in English.

Preferred: 

• In-house experience or demonstrated ability to independently manage tax matters across multiple jurisdictions.
• Proficiency in Dutch and/or another EU language.
• Strong Excel and data-handling skills; ERP system familiarity (e.g., Microsoft Dynamics NAV).
• Exposure to ESG-linked tax considerations, tax governance, or reporting under Pillar 2.
• A collaborative mindset and ability to work cross-functionally with finance and legal stakeholders.
• Working knowledge of Dutch tax law and/ US tax law. • Understanding of transfer pricing documentation, OECD guidelines, and international reporting requirements.
• Experience supporting tax audits and conducting or contributing to tax due diligence processes

What we offer: 

• An in-house position in a fast-growing organization.
• Being part of an ambitious international team of dynamic young professionals.
• Innovative environment where personal and professional development is key.
• Competitive remuneration, corporate pension, and bonus schemes.
• Business- and communication-related training.
• Relocation budget and NS Business Card (when applicable).
• Exciting quarterly target incentives.
• In-house Life Coach.