Senior/Assistant Manager – Sustainability Technical – Sustainability Assurance

Senior/Assistant Manager – Sustainability Technical – Sustainability Assurance

Department: Audit and Assurance

Sub-Team: Sustainability Technical – Sustainability Assurance

Location: Any of Grant Thornton Ireland’s Offices 

Reports to: Head of Sustainability Technical, Grant Thornton Ireland

About Grant Thornton:

At Grant Thornton, we go beyond business as usual, so you can too. With nearly 3,000 people across 9 offices in Ireland, the Isle of Man, Gibraltar, and Bermuda—and a presence in over 145 countries with more than 68,000 professionals globally—we bring together local knowledge, national expertise, and a global reach. As trusted advisors, we help businesses of all sizes succeed by building lasting relationships and empowering them to make smart decisions, now and for the future.

At Grant Thornton Ireland, we don’t just predict your future—we build it. If you are looking for a career that values fresh thinking, collaboration, and diversity, Grant Thornton is the place for you.

About the position:

We are looking for a motivated and technically skilled Senior/Assistant Manager to join our Sustainability Assurance Technical team. You will play a key role in supporting the sustainability assurance engagement team. As part of our team, you will develop detailed methodologies and resources for conducting sustainability assurance engagements, helping them to navigate the rapidly changing regulatory environment and meet the highest standards of sustainability assurance.

This is an opportunity to join a firm that values diversity of thought and inclusivity, where you can bring your authentic self to work every day. We’re committed to helping you grow, both personally and professionally, and ensuring that your contributions are recognized and celebrated.

Key Responsibilities:

Methodology & Technical Development:

• Develop and/or maintain comprehensive methodologies and procedures for sustainability assurance engagements.

• Draft technical guidance, templates, and examples to support engagement teams in delivering consistent and high-quality sustainability assurance engagements.

• Draft technical guidance, templates and examples to support engagement teams in understanding the connectivity considerations and boundaries of different sections in the annual report.

• Stay up to date with evolving sustainability standards, regulatory frameworks, and trends.

• Build and maintain detailed knowledge of sustainability assurance standards, legislation and other requirements.

Collaboration & Team Building:

• Establish strong relationships with audit and assurance teams, working with subject matter experts and other stakeholders to ensure a unified approach to sustainability assurance.

• Collaborate with other departments across Grant Thornton to deliver top-tier client services.

Technical Support & Consultation:

• Provide comprehensive support to engagement teams conducting sustainability assurance engagements, ensuring the delivery of accurate and reliable assurance.

• Research complex sustainability assurance issues and provide practical solutions to assurance, audit and consulting teams.

Training & Development:

• Prepare and deliver content for internal training sessions, equipping engagement teams with the knowledge and skills needed to perform sustainability assurance engagements.

Required Skills and Experience:

• A Qualified Accountant - e.g. ACA, ACCA, CPA qualified. Minimum of 3 years’ relevant experience in practice or industry.

• Knowledge of sustainability- and corporate reporting environments and the interconnectivity with financial reporting.

• Detailed knowledge of ISA (Ireland).

• Understanding and awareness of ISAE 3000 (Revised), ISAE Ireland 3000 ISAE 3410 and ISSA 5000 (ED).

• Understanding or awareness of sustainability reporting frameworks and standards e.g. ESRS, IFRS S1 and S2, TCFD, GRI etc.

• Understanding of financial reporting frameworks, preferably IFRS, IFRS as adopted by the EU, UK-adopted International Accounting Standards.

• Desire to be part of a high performing team covering a range of sustainability matters, in a dynamic, challenging environment.

• Strong analytical skills and attention to detail.

• Good communications skills, both written and verbal.

• Comfort and ability in presenting complex topics.

• Proficiency with MS Word, MS Excel, MS PowerPoint, MS SharePoint etc.

• Ability to work on your own initiative.

• Ability to foster, maintain and grow relationships across key stakeholders

What We Offer:

At Grant Thornton, we care about our people and offer an environment where your contributions are valued, and your development is a priority. We provide:

• A supportive, flexible working environment that prioritizes collaboration and diversity.

• Opportunities for career growth, continuous learning, and professional development.

• A culture of recognition, where successes are celebrated through initiatives like our “Shout Out” recognition scheme.

• A comprehensive rewards and benefits package that supports your well-being and promotes a healthy work-life balance.

Grow with Us:

At Grant Thornton, we value your unique experiences and perspectives. We are committed to helping you achieve your career goals in an inclusive, collaborative, and flexible environment. Bring your authentic self to work and be part of a high-performing team that is shaping the future of sustainability assurance.

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