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Salary
≈ $52k – $147k per year (Estimated)
Location
Hybrid (Belfast, United Kingdom)
Visa
Licensed UK visa sponsor

Confirmed on the employer's own hiring board on Oct 10, 2026. First seen by Alion on Sep 30, 2026.

Overview
Company
Impact
Profile match
Arqit is a London cybersecurity company founded in 2017 that supplies symmetric key agreement software designed to resist quantum attack. Its product distributes rotating encryption keys to endpoints and cloud services without relying on the public key mathematics that quantum computers threaten. The company works with defence, telecommunications and financial customers preparing for post-quantum migration.

Arqit is a global pioneer in post-quantum cryptography: we provide a proven defence against both current cyber dangers and impending quantum threats. Our global team describe Arqit as providing a positive, inclusive and high-performing working environment, where employees feel that managers care about the success and well-being of their teams, individuals feel valued as employees and teams achieve more than they thought possible, together. We offer excellent benefits including hybrid working, annual bonus, RSU share ownership, private and health care.

There has never been a more exciting time to join Arqit. We are scaling our Finance Operations Centre in Belfast, building a world-class team to support the Group’s continued growth. The finance team is pivotal to the business, ensuring financial information is timely, accurate, complete and compliant with relevant accounting and taxation principles. We have a culture that gives you the opportunity to innovate, take ownership, and scale new heights in your career as the company grows.

We have a new opportunity for a Finance Assistant to join our Belfast team and take ownership of day-to-day transactional finance activities. This is a fantastic role for someone looking to develop their career in a dynamic, fast-growing listed business.

The role is based in our Belfast city centre office, with flexibility for hybrid working.

What you’ll be doing

  • Process and match purchase invoices (approximately 50 per month) and ensure suppliers are paid within agreed terms
  • Raise sales invoices and support the cash collection process
  • Perform daily bank reconciliations across all Group entities
  • Manage treasury activities, reconciling approximately 60 transactions per month and preparing weekly cash position reports
  • Assist with the preparation of monthly accruals, prepayments and allocation entries
  • Prepare and maintain balance sheet reconciliations
  • Support the Purchase Order process, working with budget holders across the business
  • Assist with statutory reporting by providing supporting schedules when requested

What we’re looking for

We would expect candidates for this role to meet most or all of the following criteria:

  • Previous experience in a transactional finance role (AP, AR or treasury)
  • Studying towards an accounting qualification (AAT, ACCA or CIMA) is advantageous
  • Good working knowledge of accounting systems; NetSuite experience is a plus
  • Strong organisational skills and ability to manage competing priorities
  • A positive, can-do attitude and willingness to support the wider team
  • A track record of success in academic and professional achievements
  • Thoroughness and attention to detail
  • The right to work in the UK without visa restrictions is essential.

Please note, the ability to work in the UK without visa restrictions is ESSENTIAL.

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