Are you a qualified, hands-on Site Controller with a strong SME background and a passion for driving change? Do you thrive in challenging environments where your expertise in finance, controls, and leadership can make a real difference? If so, this could be the perfect interim opportunity for you. The Role: We're seeking an experienced Interim Site Controller to join our team in Barnsley on a six-month contract. This is a fully on-site position, requiring a dynamic professional who can lead, support, and improve a finance function undergoing significant change. You'll be expected to: Challenge and validate the work of management accountants to ensure accuracy, data integrity, and quality reporting. Apply your financial accounting and management accounting expertise to provide reliable insight and control. Develop and implement robust financial controls in a historically low-control environment, driving process improvement and efficiency. Provide mentorship, guidance, and support to a team of junior finance staff, uplifting capability and confidence. Partner with the business and group stakeholders, ensuring reporting is accurate, timely, and insightful. Navigate and support through a significant change environment, using your experience to lead from the front. Operate with a can-do attitude, acting independently and confidently to move the finance function forward. What We're Looking For: Qualified accountant (AC...