Interim Senior Accountant

JR United Kingdom; London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

An innovative international biotech company is seeking an Interim Senior Accountant for a pivotal 6-month contract role. This position offers the chance to work closely with the Finance Director, ensuring timely month-end closes and enhancing management reporting. You'll leverage your accounting expertise and advanced Excel skills to drive financial insights and support cash flow forecasting. With a hybrid working model, this role provides meaningful exposure to senior leadership in a fast-paced, collaborative environment. Join this dynamic team at a crucial point in their growth journey!

Qualifications

• Recognized accounting qualification (ACA/ACCA/CIMA) required.
• Good knowledge of IFRS with a track record of high-quality reporting.

Responsibilities

• Oversee month-end close and deliver accurate outputs with insightful analysis.
• Support the creation of cash flow forecasts using historical trends.

Skills

IFRS Reporting

Excel

Financial Analysis

Stakeholder Management

Education

ACA/ACCA/CIMA Qualification

Tools

Excel

Job description

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Cedar is currently partnered with a market-leading, private equity-backed biotech business to secure an Interim Senior Accountant. The role is a 6-month contract, paying a competitive day rate (to be discussed based on experience).

The Company

This innovative, international biotech company, backed by a major large-cap private equity fund, is entering a pivotal phase of global expansion, supported by a breakthrough product suite and growing commercial operations across Europe and North America. With investment in infrastructure, systems, and financial leadership, they're building a finance function capable of supporting rapid, cross-border growth.

The Role

As Interim Senior Accountant, you will:

• Work directly with the Finance Director to oversee and deliver the month-end close, ensuring timely, accurate outputs with insightful analysis and business-focused commentary.
• Drive improvements to management reporting packs, sharpening the quality of financial insight for internal and external stakeholders.
• Build a structured view of commercial inflows vs operational liquidity, drawing on multiple data sources to create a forward-looking picture of working capital dynamics.
• Support the creation and evolution of cash flow forecasts, combining historical trends with real-time operational data to support senior decision-making.
• Perform key balance sheet reconciliations, journal entries and maintain tight control over core financial records.
• Ensure compliance with IFRS reporting standards and deliver outputs to audit-ready levels.
• Leverage strong Excel capabilities to automate and enhance existing reporting models and tools.

Your Profile

You will ideally have:

• A recognised accounting qualification (ACA/ACCA/CIMA).
• Good working knowledge of IFRS and a track record of preparing high-quality reporting outputs.
• Advanced Excel capability, comfortable with formulas, lookups, and data modelling.
• Experience working in PE-backed, high-growth or multinational businesses.
• Strong communication and stakeholder skills, with a pragmatic, delivery-focused approach.

This contract role as Interim Senior Accountant offers a unique opportunity to step into a PE-backed global biotech at a crucial point of scaling. The role blends technical delivery with commercial insight and offers meaningful exposure to senior leadership in a rapidly evolving business.

The company operates a hybrid working model - typically 3 days per week in their Central London office, easily accessible by major transport links.

The culture is collaborative, hands-on, and fast-paced, with a strong emphasis on innovation and ownership.