GAIN Finance Business Partner

Team: Finance Reporting to: Head of FP&A Location: London (office 2 days a week + hybrid + potential UK travel) ABOUT GAIN is a creative‑led, insight‑driven company that blends data, tech and creativity. We believe the best ideas emerge where intelligence and creativity unite, where insight sparks imagination, and where innovation turns possibility into progress. We are explorers of new frontiers, shaping bold strategies that move people, brands, and businesses forward. Individually and together, our specialist teams provide the vision, data, and confidence brands and organisations need to make braver, more impactful decisions. Today as GAIN, we work as a united force, using data to fuel creativity, and technology to unlock new possibilities. As imagineers we don't just embrace innovation – we engineer it, transforming information into action, and ideas into breakthroughs. This is where rebel thinking, smart technology, and data‑driven creativity shape the future. Through our five specialist teams – Creative Studio, Conversion, Customer Science, Experience and Performance. Individually, and together, we work to fuel growth, and deliver measurable impact. THE ROLE The right candidate will be a qualified accountant with experience in influencing strategic decisions of a business using a variety of data sources to back up recommendations and analysis. They will ideally have a background in private equity (not a requirement) and are used to a dynamic business environment where problem‑solving and process implementation are attractive challenges. The candidate will be comfortable using large datasets to produce complex models which will support their understanding and forecasting of the Business Unit. RESPONSIBILITIES The Finance Business Partner plays a strategic role in driving business performance by providing insightful financial analysis, forecasting, and decision support. Partnering with business leaders across functions, this role ensures alignment between financial planning and operational execution, delivering value through data‑driven insights. Where there are gaps in processes, the FBP will highlight them and provide potential solutions. Month‑end processing and analysis Accruals / Pre‑payments / WIP / Deferred postings Balance‑sheet reconciliations Production of departmental management accounts before presentations to CFO / Head of FP&A Forecasting Annual budget Monthly rolling forecasts Business partnering financial & non‑financial stakeholders Scenario planning Ad‑hoc analysis required by Business Unit Commercial analysis (Client profitability, resource utilisation, etc.) Capex & Investment Committee papers / business cases REQUIREMENTS 5+ Years PQE (ACA/CIMA/ACCA) Experience business partnering Senior Leadership Teams Experience using large datasets, strong Excel modelling and data‑driven skills Ideally experience of working within a marketing, digital or creative agency environment HOW YOU'LL WORK Constant curiosity: You can think critically and understand the data, knowing where you need to take action. You're analytical with the ability to investigate and resolve. Pushing boundaries: You'll make the most efficient use of technology, suggesting process improvements. The power of our imagination: You're a problem solver who goes the extra mile. You'll know the best approach to take with clients to get results. Making it happen: You're proactive and you know you can make a difference. You use your sound judgement when making decisions and you take responsibility for your decisions and actions. Putting people first: You'll build effective relationships with people, internally and externally, understanding both business and client needs. BENEFITS Private Medical Insurance BUPA Life Assurance Income protection Employee Assistance Programme Cycle to Work salary sacrifice scheme Tech & Wearables salary sacrifice scheme Octopus EV Scheme Discounts and deals on a range of items from hotels, holidays and hormone testing to cinema, gyms and will writing GAIN is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of sex, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, or pregnancy and maternity. #J-18808-Ljbffr