Interim Financial Controller AI and Hardware Deep Tech Business Hybrid The Client Harmonic is partnering with a venture-backed deep tech business that pairs proprietary AI software with its own sensing hardware, already in use with UK government customers. Having recently closed a significant funding round and grown from under ten people to more than thirty in a year, the business is moving from RandD into production, with its first batch of units in build and large contracts in sight. Finance needs to be ready before those orders land. The Role This is a hands-on interim of around six months, working alongside the Chief of Staff and closely with the COO. You will take a finance function that has grown faster than its processes, get the ledger right, deliver the December year-end and leave clean foundations and processes. It is primarily a fixer''s role rather than a management one, with real scope to shape how finance works. You will also coach a part-qualified accounts assistant. Key Responsibilities Review and correct nominal coding across the ledger, clearing out catch-all codes. Put inventory, cost of sales and fixed asset accounting on a proper footing, including stock, paid and unpaid customer trials, and demonstration units. Lead the December year-end and audit preparation, with the accounts turned round within four months. Build a rolling cash flow forecast, linking committed purchase orders to cash. Produce clear quarterly management accounts for the founder ..... full job details .....