Finance Function Support Manager

RSM UK; City Of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A prominent consulting firm in London seeks a Finance Function Support Manager to lead client engagements and improve finance processes. The role focuses on managing relationships, ensuring delivery quality, and guiding a team of professionals. Candidates should be ACA/ACCA qualified with extensive experience in financial management and strong technical skills in UK GAAP and IFRS. Benefits include flexible working and a focus on diversity and inclusion.

Benefits

Hybrid and flexible working

27 days holiday

Health and wellbeing benefits

Access to 300+ courses

Qualifications

• At least two years post-qualification experience in professional practice.
• Proven experience managing a portfolio of clients.
• Strong understanding of VAT and reconciliations.

Responsibilities

• Lead delivery of managed finance function services.
• Acting as primary point of contact for clients.
• Supervise and coach a team of Assistants and Supervisors.

Skills

Leadership

Communication

Technical expertise in UK GAAP

Client relationship management

Team coaching

Education

ACA / ACCA qualification

Tools

MS Excel

Xero

NetSuite

Job description

Make an Impact at RSM UK

As one of the world's largest networks of audit, tax and consulting firms, RSM delivers big ideas and premium service to help middle-market businesses thrive. We are a fast-growing firm with big ambitions — we have a clear goal to become the premium adviser to the middle market, globally. This vision touches everything we do, motivating and inspiring us to become better every day. If you are looking for a firm where you can build a future and make an impact, then RSM is the place for you.

Our Consulting Team

At RSM, our consulting team brings together diverse advisory experts to deliver our six core solutions: business transformation, forensic, deal services, restructuring, finance function support, and risk and governance.

Our solutions are designed to address the unique needs, challenges, and opportunities our clients face as they strive to achieve their aspirations and organisational goals. Whether it’s supporting global expansion, developing acquisition strategies, facilitating private equity investments, or collaborating with boards to manage risk and governance, our consulting experts work as one cohesive team. We prioritise simplicity, providing data-driven insights, value-added assurance, and high-quality execution to empower our clients in building sustainable, future‑fit businesses.

About the team

RSM’s Finance Function Support solution works closely with our clients to optimise their finance function. By providing traditional outsourced and insourced operating models supplemented by deep technical, industry and digital expertise we help our clients navigate the ever‑changing financial landscape.

Our London team has grown rapidly, driven by our success in delivering insight‑led finance solutions to clients in the Private Equity and Real Estate sectors. The strength of our existing management group has been central to that success, and we are now seeking an additional Manager to join this high‑performing team and help shape the next phase of our growth.

About the role

As a Finance Function Support Manager, you will take ownership of the delivery, quality, and profitability of a portfolio of client engagements, ensuring the team delivers a premium partnering service.

You will lead the delivery of managed finance function services across a portfolio of clients, with responsibility for accounting operations, management reporting, and driving improvements in finance processes. In addition to your client‑facing work, you will support the development of the team through coaching and performance management, and build strong internal relationships across service lines to champion our solution. You will also serve as a key technical resource, providing guidance on complex accounting matters, responding to client queries, and ensuring compliance with relevant reporting standards.

Your responsibilities will include:

• Acting as the primary point of contact for clients, developing strong relationships with senior stakeholders, and ensuring the consistent delivery of high‑quality, value‑added service.
• Leading on the planning, execution, and review of client deliverables, including overseeing accounting operations, periodic management accounts and VAT returns.
• Reviewing and advising on finance function process improvements to enhance the efficiency, effectiveness, and quality of the reporting close process — through the implementation of strengthened controls, adoption of technology solutions, or refinement of deliverables to achieve a premium standard.
• Taking responsibility for profitability, resource planning, WIP and billing management, and monitoring overall engagement performance.
• Supervising and coaching a team of Assistants and Supervisors, reviewing their work, providing constructive feedback, and supporting their professional and personal development.
• Developing deep industry knowledge in Private Equity, Real Estate, or both, to better understand client needs, tailor service delivery, and contribute to thought leadership and market positioning.
• Providing accounting and technical support on complex matters, such as accounting treatment, journal adjustment, consolidated reporting for group structures, and acquisition accounting.
• Identifying opportunities to develop existing client relationships, supporting fee negotiations, and contributing to proposals and business development initiatives.
• Leading on one or more aspects of team management, such as delivery quality, technology adoption, training, resource planning, or process improvement.
• Working closely with Directors and Partners to deliver strategic initiatives that support the ongoing growth of the AFR team and wider firm.

The type of candidate we are looking for

Core attributes

• Demonstrates strong leadership, organisation, and communication skills, with the ability to motivate and inspire teams
• Delivers work to a consistently high standard, maintaining professionalism and accuracy under pressure.
• Builds trusted relationships with clients and proactively identifies opportunities to add value.
• Collaborative and adaptable, contributing positively to the wider team culture and firm initiatives.
• Demonstrates ambition, curiosity, and a commitment to continuous learning and technical excellence.

Qualifications, skills & experience

• ACA / ACCA qualified, with at least two years post‑qualification experience in professional practice.
• Proven experience managing a portfolio of clients, ideally within a finance function support, outsourcing, or management accounting environment.
• Strong technical knowledge of UK GAAP and IFRS, with experience reviewing management reports.
• Proven ability to oversee multiple engagements simultaneously, ensuring deadlines, quality, and profitability targets are met.
• Strong commercial awareness with proven experience in delivering sound financial management for client engagements.
• Experience leading and coaching teams, reviewing work, and supporting development of junior colleagues.
• Excellent written and verbal communication skills, with confidence in presenting to clients and managing key relationships.
• Strong understanding of VAT, reconciliations, and core accounting processes.
• Proficient in MS Excel and accounting systems, with an aptitude for learning and implementing new technologies.
• Demonstrated industry experience and/or a strong interest in specialising in Private Equity or Real Estate, with a commitment to contributing to the ongoing growth of our Finance Function Support offering within these sectors.

Desirable skills

• Experience using Xero, NetSuite or CCH.
• Experience preparing or reviewing accounts under FRS102 or IFRS, with the ability to identify technical accounting issues, ensure compliance with disclosure requirements, and provide clear technical guidance to junior team members on the application of accounting standards.
• Experience preparing fee proposals or contributing to business development efforts.
• Experience supporting clients through year‑end audits and liaising with auditors.
• Experience leading complex projects such as IFRS transitions, adoption of updated FRS 102 standards, acquisition accounting, or group consolidations.
• Awareness of international GAAP and accounting issues arising from multi‑entity or group structures.

What we can offer you

We recognise that our people are our most important assets. That’s why we offer a flexible reward and benefits package that will help you have fulfilling experience, both in and out of work.

• Hybrid and Flexible working
• 27 Days Holiday (with the option of purchasing additional days) (confirm appropriate days per role)
• Lifestyle, Health, and Wellbeing including financial wellbeing benefits such as financial tools, electric car scheme and access to a virtual GP
• Access to a suite of 300+ courses on demand developed by our in‑house Talent Development team

Diversity and Inclusion at RSM

At RSM, we want to create a strong sense of belonging so that people of all identities, backgrounds, and cultures feel they can bring their true self to work. Our clients come from all walks of life. We aim to achieve that same diversity of background, experience and perspective in our own teams, so that we can genuinely understand our client's needs. Diverse teams bring a broader range of ideas and insights to work. That’s why we’re working together to ensure our firm's principles and processes support a firm culture that embraces difference and strengthens inclusion.