Interim Finance Business Partner – Opex & Budgeting

About the role

We are supporting a high‑growth international tech business that needs an experienced finance professional to lead the budgeting and forecasting cycle for Opex, headcount and central functions. This is a three‑month contract with the possibility of extension, based in London with a hybrid working model.

Key responsibilities

• Own the end‑to‑end budgeting and forecasting process for Opex and headcount.
• Partner with senior stakeholders across central functions to provide financial insight and challenge.
• Consolidate headcount and overhead data across multiple business areas.
• Prepare variance analysis, commentary and first‑draft outputs for senior review.
• Identify data issues, propose practical solutions and support month‑end activities during the budgeting cycle.
• Help improve reporting, planning and budgeting processes where capacity allows.

Required profile

• ACA, ACCA, CIMA or equivalent qualification.
• Proven experience in a Finance Business Partner, Commercial Finance or FP&A role.
• Strong background in budgeting, forecasting and financial modelling.
• Experience with Opex, overheads and headcount planning.
• Excellent stakeholder management and the ability to work independently.

Required skills

• Advanced Excel
• Power Query
• Pivot tables

What we offer

• Competitive day rate of £450‑£500 (outside IR35).
• Hybrid working arrangement in London.
• Opportunity to contribute to a fast‑growing international tech business.