Financial Controller - 6 Month Fixed Term Contract

At OQC, we aren’t just theorising about the future; we’re building it.

Born from a philosophy of bold innovation, we’ve successfully transitioned quantum computing from an academic dream into a commercial reality.

The most exciting thing is that we’re just getting started and we’ve recently closed our £260 million Series C funding round which is the largest fundraise ever completed by a quantum computing company in Europe.

The Purpose

As OQC scales, our Finance function is evolving to meet the needs of an increasingly complex, international business.

As Financial Controller, you’ll play a key role in strengthening our financial control environment, solving complex accounting and process challenges, and building scalable ways of working.

This is a hands-on, delivery-focused role where you’ll take critical finance workstreams from diagnosis through implementation, testing and handover.

The Role

Reporting to the Group Financial Controller, you’ll operate with significant autonomy across financial accounting, control remediation, finance operations and process improvement.

You’ll combine strong technical accounting expertise with a pragmatic, problem-solving mindset. Whether you’re fixing an underlying control weakness, improving the close process, establishing finance operations for a new overseas entity or strengthening how NetSuite supports the business, you’ll be expected to turn complex problems into robust, sustainable solutions.

The Group Financial Controller will retain overall accountability for Group reporting, statutory reporting, tax, treasury, material accounting judgements and the wider Group control environment.

This is an initial 6 month fixed term contract with the possibility of it becoming permanent.

What You'll Be Working On

• Lead financial-control remediation across areas including order-to-cash, procure-to-pay, payroll, fixed assets, financial close, reporting and finance systems, taking issues from root-cause analysis through to implementation and testing.
• Resolve complex accounting, reconciliation and reporting issues, replacing recurring manual fixes with sustainable processes and controls.
• Strengthen month-end, year-end and statutory reporting processes through improved reconciliations, working papers, review controls and technical accounting analysis.
• Design, document and embed scalable financial controls, procedures and accounting policies with clear ownership, evidence and segregation of duties.
• Establish finance processes, systems, reporting structures and controls for new overseas entities, working with internal teams and external professional advisers.
• Lead finance systems and process improvements, using NetSuite, automation and better data flows to improve accuracy, efficiency and scalability without compromising control.
• Act as a senior technical resource across Finance, challenging existing ways of working, supporting colleagues and ensuring improved processes transition effectively into business-as-usual operations.

What We're Looking For

• A fully qualified Chartered Accountant — ACA, ACCA or equivalent.
• Strong practical knowledge of IFRS, financial accounting, technical accounting analysis and statutory financial reporting.
• Demonstrable experience delivering hands-on financial-control remediation from root-cause analysis through solution design, implementation and testing.
• Experience across complex finance cycles such as order-to-cash, procure-to-pay, payroll, fixed assets, financial close and reporting.
• Strong experience designing, documenting and implementing financial controls and working with established control frameworks such as SOX or COSO.
• Proven ability to resolve complex balance-sheet, reconciliation, audit and financial-reporting issues independently.
• Strong finance systems capability, including hands-on experience with NetSuite, alongside experience improving finance processes, controls and workflows.
• Experience preparing statutory reporting schedules, audit evidence and technical documentation, and working directly with external audit requirements.
• The ability to lead complex finance improvement workstreams involving multiple stakeholders and translate technical issues into clear, practical recommendations.
• A proactive, tenacious approach: you investigate the root cause, take ownership and see complex problems through to resolution.

The 'Nice-to-Haves'

• Experience establishing or improving finance operations for new legal entities or overseas subsidiaries.
• Experience within an international Group operating across multiple jurisdictions.
• Background in a fast-paced start-up, scale-up or technology environment.
• Experience remediating controls following external audit, internal review or control-assessment findings.
• Exposure to significant finance transformation or control-improvement programmes.
• Experience across both private and listed-company environments.
• Knowledge of IT general controls, finance-system implementation or configuration.
• Experience using automation, data analysis, finance technology or AI to improve finance processes.

Why Join OQC

You will join a world-class team at the forefront of the next computational era. We offer a culture of bold innovation, the chance to work with unique lab infrastructure, and the opportunity to see your work redefine the limits of computation.

Learn more about our benefits and positive work culture here: