Senior Financial Accountant

About us PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software. We are building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling high-fidelity, multi-physics simulation through AI inference across the entire engineering lifecycle, PhysicsX unlocks new levels of optimization and automation in design, manufacturing, and operations — empowering engineers to push the boundaries of possibility. Our customers include leading innovators in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive.The Opportunity PhysicsX is looking for a Senior Financial Accountant to join our growing finance team. This is a technically demanding role for a qualified accountant who is confident working across complex, multi-entity, multi-jurisdiction accounting — and who wants to take genuine ownership of the processes they run. You'll be a key part of a team of four, reporting directly to the Finance Manager, and acting as the point of contact for group tax and statutory reporting across our UK, US, and Singapore entities. You'll work closely with external tax consultants, auditors, and advisers, and be expected to take clear ownership of the workstreams you lead. This is a role for someone who thrives on responsibility, brings fresh thinking to improve processes and controls, and has the technical depth to navigate regulatory complexity across multiple jurisdictions. What You'll Do Revenue recognition Leading global revenue recognition in line with FRS 102, ensuring accuracy and consistency with Group accounting policies across all entities. Tax compliance and advisory Supporting group tax compliance across the UK, US, and Singapore — acting as the main point of contact between the business and our external tax advisers, and helping to ensure corporation tax returns and year-end filings, including federal, state, and local obligations, are completed accurately and on time. Managing VAT and GST compliance obligations across jurisdictions. Supporting R&D tax credit claims in collaboration with specialist advisers. Accounts receivable Owning the AR function end-to-end — including customer invoicing, cash allocation, and credit control — ensuring timely and accurate processing. Technical Accounting & Standards Maintaining compliance with complex accounting standards across the group, including lease accounting (IFRS 16) and share-based payments (IFRS 2). Assessing and implementing new or amended standards as they come into effect, ensuring Group accounting policies remain current and consistent. Acting as the internal point of reference for technical accounting queries across the business. Statutory and regulatory reporting Leading timely and accurate statutory and regulatory reporting across the group, ensuring compliance with IFRS, UK GAAP, and relevant local standards. Providing aud...