Interim Financial Controller | High-Growth Tech Business

Interim Financial Controller | High-Growth Technology Business | London

The Client

Harmonic are delighted to be supporting a rapidly scaling technology business as they look to bring in an experienced Interim Financial Controller to strengthen their finance function during an exciting period of growth.

The company operates internationally and has built a strong presence across multiple markets. Backed by institutional investors, the business is continuing to scale its operations and is now seeking an experienced finance professional who can bring structure and ownership to core financial processes as the organisation continues to expand.

The team operates in a fast-moving and collaborative environment where finance plays a critical role in supporting operational decision-making and maintaining strong financial discipline during growth.

The Role

This position will take ownership of core financial operations across a multi-entity international structure, supporting the business through an important period of development.

Working closely with senior leadership, the successful candidate will oversee the integrity of financial reporting and balance sheet processes, while improving and embedding scalable finance procedures that can support the organisation as it grows.

This role is particularly well suited to someone comfortable working in a hands-on capacity within a scaling environment, where the ability to bring clarity and structure to finance operations is essential.

Responsibilities

• Owning the year-end close process, including trial balance reviews, journal postings, and balance sheet reconciliations.
• Managing intercompany accounting and reconciliations across multiple international entities.
• Ensuring accuracy and completeness of financial records across the group.
• Reviewing and strengthening existing finance processes and controls, identifying opportunities to streamline operations.
• Improving processes around payment reconciliations, FX adjustments, and intercompany settlements.
• Supporting the development of repeatable and scalable month-end and year-end procedures.
• Ensuring financial information is well structured and reliable to support reporting and business decision-making.
• Collaborating with senior stakeholders across the business to ensure finance operations run efficiently.

Essential Skills

• Qualified Accountant (ACA, ACCA, CIMA, or equivalent)
• Strong experience operating as a Financial Controller or senior finance lead within a fast-paced environment.
• Experience managing multi-entity or international finance structures.
• Proven experience owning month-end or year-end close processes and maintaining balance sheet integrity.
• Track record of improving or implementing finance processes and controls.
• Comfortable working in a hands-on role within a scaling business environment.

Contract Length: 3-6 month

Location: London (Primarily office based)

Start Date: ASAP

Please feel free to get in touch with Ewan Fenley for more information ()

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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.