Financial Controller at Isembard

About Isembard

Isembard is building a network of high-performance factories for critical industries. We combine advanced machine tools, robotics and our own software, MasonOS, to make precision components for aerospace, defence, energy and frontier technology companies, with factories across the UK, US, Germany and France. Our mission is to forge industrial acceleration.

The role

We are looking for a Financial Controller to help build Isembard's finance function from the ground up. This is a builder role, not a maintenance role.

Many of our financial processes, controls and systems are still being developed, and you will shape how finance works, from reporting and inventory accounting to audit readiness and international consolidation. You will build it, do it, own it and improve it, working directly with our Finance Director.

What you'll do

• Build and own the month-end and year-end close.

• Prepare management accounts, balance sheet reconciliations and supporting schedules.

• Set accounting policies and controls that scale with the business.

• Own statutory accounts and group consolidation across international entities, including intercompany accounting.

• Lead audit preparation and auditor relationships, including our move to a Big Four audit.

What we're looking for

• ACA, ACCA or equivalent qualification.

• Strong audit experience, ideally in a Big Four firm, and ideally a year or two in industry since.

• A strong technical grasp of IFRS and UK accounting standards.

• Experience preparing financial statements, running month-end and working with external auditors.

• Excellent Excel skills and attention to detail.

Nice to have

• Manufacturing, engineering, aerospace, automotive or another inventory-intensive industry.

• Inventory accounting, WIP or standard costing.

• International group consolidation.

• Professional French or German.

Why Isembard

• Shape the finance function rather than inherit one.

• Real ownership and unusual breadth: manufacturing, international expansion, systems and technical accounting.

• Your scope grows as the business does.

Location: On-site at our Southwark factory in London.

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