We are seeking an experienced Management Accountant to join a fast-growing advertising company based in London. You'll own key month-end processes, partner with budget holders, and deliver accurate reporting and insights. Working closely with the Financial Controller, you'll help drive process improvements and strengthen controls across the business. Client Details Our client is a fast-growing advertising scale-up headquartered in London, with offices worldwide. This role sits within the UK Finance team, supporting the UK Financial Controller and the wider business. They offer a competitive benefits package and are committed to employee happiness, recognition, and work-life balance. Description Month-End & Reporting: Manage the month-end close process, prepare journals, accruals, and prepayments, perform variance analysis, and deliver accurate reporting packs to strict deadlines. Business Partnering: Lead monthly reviews with budget owners, providing insights, challenges, and actionable recommendations. Controls & Process Improvement: Support the Financial Controller in maintaining compliance, improving processes, and driving automation in reporting and journals. Systems & Accuracy: Ensure effective use of ERP system and accurate GL coding across AP and AR. Intercompany & Compliance: Handle intercompany reconciliations and assist with audit deliverables. Planning & Analysis: Contribute to budgeting, forecasting, and deliver ad hoc analysis as needed.Profile ACA/ACCA/CIMA qualification with post-qualified experience within industry Strong commercial and financial awareness, with the ability to turn data into actionable insights. Advanced Excel skills are highly desirable. Proven ability to thrive under pressure, managing multiple priorities and tight deadlines. Self-driven, proactive, and hands-on, with a willingness to dive into detail when needed. Excellent relationship-building skills and credibility when engaging stakeholders across the business.Job Offer Competitive salary between £60,000 and £70,000 per annum. Generous benefits, including flexible core hours and a birthday day off. 10 days abroad for personal use and a day off for charity work. Comprehensive private healthcare, dental, and life insurance coverage. Competitive maternity & paternity leave Sociable company culture, with regular in-office and post-work social activities and team bonding