Finance Integration Manager Interim

Intro

A growing, acquisitive professional services business backed by private equity is seeking a Finance Integration Manager to support the Finance Director through a period of continued expansion and integration activity.

This is a highly visible role focused on post-acquisition integration, group reporting, financial operations, systems development, and management information. The successful candidate will play a key role in embedding newly acquired businesses into the group, strengthening reporting frameworks, and supporting wider finance transformation and automation initiatives.

The Company

A leading UK professional services firm with a long-established reputation and a diverse client base. The business has grown significantly through both organic growth and acquisition and continues to invest heavily in technology, automation, operational efficiency, and financial infrastructure. Finance sits at the heart of this growth agenda, supporting integration, reporting, and strategic decision-making across the group.

The Role

Reporting to the Finance Director, you will support group-level reporting, acquisition integration activities, financial operations, and systems development across a growing multi-entity environment.

The role combines technical reporting, project delivery, stakeholder management, and process improvement, requiring someone who is comfortable operating in a fast-paced environment undergoing significant change.

Key responsibilities include:

• Leading the financial integration of newly acquired businesses into group systems, processes, and reporting frameworks
• Aligning chart of accounts, controls, reporting structures, and finance processes across entities
• Acting as the finance lead during post-acquisition integration activities
• Supporting consolidated group reporting across multiple entities
• Partnering with operational teams, acquired businesses, and external advisers throughout integration programmes
• Supporting the implementation and optimisation of finance systems, including Business Central and associated finance modules
• Designing and improving finance processes across accounts payable, approvals, purchasing, and reporting workflows
• Developing and maintaining complex Excel models for group consolidation and management reporting
• Driving improvements in reporting automation, efficiency, and data quality
• Supporting the production of board-level reporting, performance analysis, and management information
• Translating financial data into clear commentary and actionable insight for senior stakeholders
• Building reporting packs to support integration progress, growth initiatives, and business performance monitoring
• Supporting financial controls, governance, and reporting consistency across newly integrated entities
• Assisting with month-end processes, audit activity, and statutory reporting requirements

Your Profile

• Fully qualified accountant (ACA, ACCA, or CIMA)
• Strong post-qualification experience within professional services, multi-entity organisations, or acquisitive businesses
• Demonstrable experience supporting post-acquisition integration programmes
• Strong group reporting and consolidation experience
• Experience preparing senior management, executive, or board-level reporting
• Advanced Excel capability, including complex modelling, consolidation, and reporting packs
• Strong analytical skills with the ability to convert financial data into meaningful business insight
• Comfortable operating in changing environments with multiple concurrent priorities
• Strong communication and stakeholder management skills across finance and non-finance teams
• Highly organised with excellent attention to detail

Compensation & Benefits

This role offers a rate of £450-550 per day inside IR35 alongside hybrid working, with a minimum of three days per week in the London office. The position provides significant exposure to acquisition activity, senior leadership, finance transformation initiatives, and strategic business projects within a growing and evolving organisation.