Accounts Receivable & Billing Specialist

Kigen is an Arm and SoftBank backed technology company building the operating system that secures connectivity for the Internet of Things. Our eSIM and iSIM OS is embedded in devices shipping around the world, and we serve customers across Europe, Asia-Pacific and beyond. We are a growing, multi-entity group operating across the UK, India, Japan, South Africa, Denmark, France and United States running a single global ERP (NetSuite) with a consolidated group ledger, with third party local accounting and tax support where required. Our commercial model spans perpetual software licensing, hardware module supply, SaaS subscriptions and over-the-air (OTA) services — which makes our billing and receivables environment unusually varied and genuinely interesting to work in. Purpose of the role This role owns the financial accuracy of the accounts receivable and customer invoicing desk for the group. Acting as the bridge between finance and commercial operations, it exists to make sure every sale — across every entity, currency and revenue model — is billed accurately and on time, that cash is collected efficiently, and that our receivables ledger is clean, well-reconciled and audit-ready. It is a hands-on, detail-driven position with real ownership. You will be the go-to person for billing queries and collections across the group, working closely with the wider finance team, commercial operations and customers directly. What makes this role different Kigen 's receivables environment is more complex than a typical AR desk — and that's a big part of what makes it rewarding: Multi-entity and multi-currency, all consolidated in a single NetSuite ledger with a March year-end. Several distinct revenue models — perpetual OS licences, hardware module reselling (including drop-ship), recurring SaaS subscriptions and usage-based OTA services — each with its own billing logic and timing. Cross-border transactions that bring indirect tax (VAT / GST) and withholding-tax considerations i