Interim Finance Business Partner - Opex / Budgeting

Interim Finance Business Partner - Opex / Budgeting

Full-Time 50000 - 65000 £ / year (est.) No working from home possible
Harmonic Finance™ | Certified B Corp

At a Glance

  • Tasks: Support budgeting and forecasting processes while collaborating with senior finance stakeholders.
  • Company: High-growth international tech business with a dynamic work culture.
  • Benefits: Hybrid working, competitive pay, and potential for contract extension.
  • Other info: Inclusive workplace welcoming diverse applicants.
  • Why this job: Join a fast-paced environment and make a real impact on financial strategies.
  • Qualifications: Finance qualification (ACA, ACCA, CIMA) and experience in budgeting and forecasting.

The predicted salary is between 50000 - 65000 £ per year.

  • Interim Finance Business Partner - Opex / Budgeting
  • 3 Month Contract
  • London (Hybrid)
  • We are supporting a high growth, international Tech business in the search for an

Interim Finance Business Partner to provide additional support during a key budgeting and forecasting period.

This is an initial 3 month contract, with the potential to extend depending on business requirement.

Working closely with senior Finance and operational stakeholders, this person will play a key role in supporting the budgeting process across Opex, headcount and central business functions.

The Role

  • Reporting into the Commercial Finance team, responsibilities will include:
  • Supporting the end to end budgeting and forecasting process across Opex and headcount.
  • Partnering with senior stakeholders across central functions to provide financial insight and challenge.
  • Consolidating headcount and overheads across a number of business areas.
  • Preparing analysis, variance commentary and first draft outputs for senior review.
  • Reviewing data, identifying issues and suggesting practical solutions.
  • Supporting month end where required during the budgeting cycle.
  • Helping improve reporting, planning and budgeting processes where capacity allows.
  • Working closely with the wider Finance team to deliver accurate, timely and useful analysis.

About You

We're looking for an experienced Finance Business Partner who can quickly integrate into a fast-paced commercial environment.

You will ideally have

  • ACA, ACCA or CIMA qualification, or equivalent.
  • Previous experience in a Finance Business Partner, Commercial Finance or FP&A role.
  • Strong budgeting, forecasting and financial modelling experience.
  • Good experience across Opex, overheads and headcount planning.
  • Advanced Excel skills, with Power Query / pivot table experience useful.
  • Strong stakeholder management skills, with the confidence to work with senior leaders.
  • The ability to analyse data, write clear commentary and make sensible recommendations.
  • A proactive, hands‑on approach and the ability to work independently.
  • Experience working within a growing, international or commercially driven business.
  • Apply today to find out more

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.

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Interim Finance Business Partner - Opex / Budgeting employer: Harmonic Finance™ | Certified B Corp

Join a dynamic alternative investment business in the heart of London, where you will not only gain hands-on experience as a Finance Assistant but also benefit from a comprehensive study support package for your professional qualifications. With a strong emphasis on employee growth and a collaborative work culture, this role offers a unique opportunity to develop your finance career while being part of a supportive team that values diversity and inclusion.

Harmonic Finance™ | Certified B Corp

Contact Details:

Harmonic Finance™ | Certified B Corp Recruitment Team

We think you need these skills to ace Interim Finance Business Partner - Opex / Budgeting

Budgeting
Forecasting
Financial Modelling
Opex Management
Headcount Planning
Advanced Excel Skills
Power Query