Jobs in London - Financial Controller • Central London

Company: Harper May

Central London

Harper May is partnering with a cutting-edge AI start-up that is rapidly scaling its operations and product reach. As the company builds momentum in the market, they are seeking a commercially astute Financial Controller to establish and lead the finance function, ensuring robust financial processes and supporting strategic growth.Role Overview: As Financial Controller, you will work closely with the leadership team to drive the financial strategy and deliver timely, accurate insights to support decision-making. This is a hands-on role ideal for someone who thrives in fast-paced, agile environments and is excited about working at the intersection of finance, innovation, and technology.Key Responsibilities: Lead the preparation of monthly management accounts, including P&L, balance sheet, and cash flow Build scalable financial processes, controls, and reporting frameworks to support rapid growth Support budgeting, forecasting, and scenario modelling across departments Manage compliance with financial regulations and prepare for external audits Provide regular reporting and analysis to founders, board members, and investors Own financial systems and data integrity, implementing improvements as the company scales Collaborate with product, operations, and commercial teams to support business case development Assist with funding rounds, financial due diligence, and investor reporting Oversee transactional finance and support the development of a small finance team as the company grows Key Requirements: ACA / ACCA / CIMA qualified with strong post-qualified experience Experience within a high-growth start-up, preferably in the AI, SaaS, or wider tech sector Strong understanding of technical accounting and financial control in a scaling business Proven ability to implement and improve finance systems and reporting tools Commercially minded, confident working with founders and external stakeholders Highly organised with excellent attention to detail and strong Excel skills Comfortable operating both strategically and hands-on in a lean team environment