Interim Financial Controller – PE-Backed SaaS | Strategic Growth Phase

JR United Kingdom; Slough; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A fast-scaling, private equity-backed SaaS business in Slough is looking for an Interim Financial Controller to lead crucial financial operations during a period of transformation and growth. This role involves enhancing governance and reporting, with responsibilities including managing budgets and fostering a high-performance finance team.

Qualifications

• Proven experience in a Financial Controller role, preferably in a PE-backed or tech/SaaS business.
• Strong technical accounting background, able to deliver in fast-paced environments.
• Available immediately or on short notice.

Responsibilities

• Lead the monthly close process and ensure timely, accurate management reporting.
• Enhance internal controls and financial processes.
• Prepare board packs and KPIs.

Skills

Financial Governance

Reporting

Stakeholder Management

Financial Modelling

Leadership

Education

ACA qualified

Job description

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Interim Financial Controller – PE-Backed SaaS | Strategic Growth Phase, slough

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Client:

Finatal

Location:

slough, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

7

Posted:

26.06.2025

Expiry Date:

10.08.2025

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Job Description:

Interim Financial Controller – PE-Backed SaaS | Strategic Growth Phase

Location: London (Hybrid)

Duration: 6 months (with potential to extend)

Ref: TB006

A fast-scaling, private equity-backed SaaS business is seeking a highly capable Interim Financial Controller to support through a period of transformation, scaling, and strategic review. The company is on a strong growth trajectory and preparing for increased investor engagement and potential future exit planning.

The Opportunity:

As Interim Financial Controller, you will play a pivotal role in tightening financial governance, improving reporting, and supporting the CFO with board and investor requirements. You’ll bring a high level of technical capability and commercial insight, with the gravitas to lead a lean team and business partner across departments.

Key Responsibilities:

• Lead the monthly close process and ensure timely, accurate management reporting
• Enhance internal controls, financial processes, and reporting infrastructure
• Prepare board packs, KPIs, and investor-level financial analysis
• Oversee budgeting, forecasting, and cash flow planning
• Manage audit and ensure statutory compliance (UK GAAP/IFRS)
• Support financial modelling and scenario planning for strategic initiatives
• Mentor and develop junior finance staff during a high-growth phase

Profile Requirements:

• ACA qualified (Big 4 trained strongly preferred)
• Proven experience in a Financial Controller or senior finance role within a high-growth, PE-backed or tech/SaaS business
• Strong technical accounting background with hands-on delivery in fast-paced environments
• Confident working in hybrid/ambiguous structures with evolving processes
• Excellent communication and stakeholder management skills
• Available immediately or on short notice