Remote Accounts Receivable & Billing Specialist in Chelmsford

Kigen is an Arm and Soft Bank backed technology company building the operating system that secures connectivity for the Internet of Things.

Our e SIM and i SIM 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 (Net Suite) 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, Saa S 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 Net Suite ledger with a March year-end.
• Several distinct revenue models — perpetual OS licences, hardware module reselling (including drop-ship), recurring Saa S 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 into the invoicing chain.
• A varied customer base, from global tier-one device makers to smaller connectivity providers — so credit-control judgement and relationship handling matter.
• A scale-up in build mode — we're actively improving and automating finance processes, so there's genuine scope to shape how the AR desk runs rather than just operate it.
• AI in the finance function — our CFO actively champions the adoption of Claude by Anthropic, and you'll help shape how billing is run with AI assistance while keeping key human-in-the-loop controls.

What you'll do

• Raise, review and issue customer invoices in Net Suite across all group entities, currencies and revenue models, with the correct commercial terms, purchase orders, contract detail and tax treatment.

A third-party billing module will go live and will need managing and integrating with Net Suite.

• Own credit control and collections group-wide using our automated dunning agent — proactively chasing overdue accounts, monitoring ageing and keeping days-sales-outstanding under control, and issuing customer statements.
• Match and allocate customer receipts across multiple