Interim Head of Finance High-Growth Technology Consultancy

Interim Head of Finance High-Growth Technology Consultancy Remote

Harmonic are delighted to be partnering exclusively with a fast-growing technology consultancy in their search for an experienced Interim Head of Finance on a 6 month contract basis. There is a high-likelihood of the role transferring to permanent employment.

The business has scaled rapidly in recent years and is now at a key stage in building out its in-house finance capability. With revenues around £25m and looking to increase by 50% YoY. This is a genuine opportunity for someone who enjoys creating structure from first principles, embedding robust processes, and helping shape the financial infrastructure of a scaling business.

The Role Reporting into the CFO, this is a broad, high-impact role spanning financial accounting, management reporting, FP&A, treasury, and wider finance transformation. You will play a central role in bringing finance fully in-house, building processes and controls from the ground up, and creating the reporting and commercial insight needed to support the next phase of growth.

You will also partner closely with the CFO on strategic finance priorities, including lender reporting, cashflow management, and preparations for future refinancing activity.

Key Responsibilities

• Own the monthly management accounts process end-to-end, ensuring accurate and timely delivery of P&L, balance sheet, and working capital reporting.
• Lead the year-end process, coordinating statutory accounts preparation and managing the external audit process.
• Build and strengthen the financial control environment, including reconciliations, accruals, revenue recognition, and process discipline.
• Develop and lead the budgeting, forecasting, and reforecasting cycle, partnering with operational and commercial stakeholders.
• Take ownership of the rolling cashflow forecast and working capital model, identifying key risks and opportunities.
• Build financial models and analysis to support commercial decision-making, including pricing, profitability, resource planning, and scenario analysis.
• Support the CFO on strategic finance projects, financing preparation, lender reporting, and covenant tracking.
• Oversee tax compliance across VAT, payroll tax, and corporation tax, working with external advisors where appropriate.
• Lead and develop the existing finance team, while helping shape the future structure and capability of the function.
• Drive continuous improvement across finance processes, systems, and reporting, embedding scalable ways of working across the business.

What We Need to See (Essential)

• Fully qualified accountant (ACA / ACCA / CIMA or equivalent) with strong post-qualified experience.
• Comfortable building processes and controls from first principles in a scaling environment.
• Confident communicator, able to partner effectively with senior stakeholders and non-finance teams.
• Experience working in a scaling SME environment (£10-30m revenue).

What We'd Like to See (Bonus)

• Experience operating in a professional services, consultancy, or project-based business is highly desirable.

Day Rate: £500-£600 per dayContract Length: Initial 6 monthsStart Date: ASAPLocation: Remote (UK)

If you are interested - to be considered for the role please forward your CV

At Harmonic, we are dedicated to fostering an inclusive and equitable workplace. We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.

At Harmonic, we are dedicated to fostering an inclusive and equitable workplace. We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.