Interim Financial Controller (Outside IR35)

OakRock is recruiting an experienced Financial Controller to join a medium sized business on an interim basis to take ownership of financial operations, with a particular focus on VAT (including partial exemption), billing, invoicing, and revenue processes.

This is a hands-on, operational role suited to someone who is comfortable operating across the full breadth of finance, bringing structure, clarity, and control to a complex and evolving environment.

You will be responsible for:

• Acting as the in-house VAT expert, with specific responsibility for designing and embedding a partial exemption process
• Leading the development and implementation of robust billing and invoicing processes, including templates and standardised workflows
• Managing end-to-end invoicing and collections across a broad customer base
• Taking ownership of a detailed data collection and process scoping exercise to improve financial accuracy and consistency
• Supporting and improving revenue recognition and financial controls
• Working closely with internal stakeholders to ensure timely, accurate, and pragmatic financial decision-making
• Providing clear, commercially focused communication around billing and cash collection activities

• Broad, hands-on Financial Controller-style role within a complex operating environment
• Requires someone comfortable operating both strategically and operationally
• Hybrid working

• Proven experience as a Financial Controller or senior finance professional operating at that level
• Strong VAT expertise, particularly partial exemption experience (essential)
• Experience designing or improving billing, invoicing, or revenue processes
• Strong operational finance capability and attention to detail
• Comfortable working in a hands-on, fast-moving environment
• Strong stakeholder management and communication skills
• Pragmatic, solutions-focused approach with the ability to bring structure quickly