Management Accountant

Overview

As Management Accountant at ONI in Oxford, you will strengthen financial reporting, controls, and regulatory compliance to support strategic decision‑making. You will work closely with the Financial Controller to ensure accurate month‑end closes and KPI reporting, manage cash and AP/AR processes, and contribute to R&D grants and audits. This role sits at the intersection of finance and operations, enabling scalable financial discipline for growth. You will shape internal controls and build robust financial processes in a fast‑paced manufacturing environment.

Pay / Benefits

• competitive compensation
• 28 days annual leave plus bank holidays and wellbeing days
• private healthcare and dental coverage
• inclusive culture
• mental health support
• pension scheme

Responsibilities

• Complete month end processes including revenue recognition, accruals, prepayments, inventory accounting and other entries
• Support production and maintenance of monthly management accounts and KPIs
• Perform monthly balance sheet reconciliations for review by the Financial Controller
• Manage accounting operations including debtors, accounts payable, bank reconciliations, sales tax submissions (UK and overseas)
• Ensure compliance with local regulatory reporting and tax filings
• Prepare information relating to R&D claims, grant submissions and external statutory audits
• Document financial processes to strengthen internal controls
• Support delivery of financial metrics and analysis for CFO-based decision making

Key requirements

• Part Qualified (ACCA/CIMA) or AAT Qualified
• Accurate reconciliation skills using Excel and ERP systems
• Delivered monthly/quarterly financial reporting as part of a team
• Supported reporting of performance against budget
• Used finance management systems to track financial activity and KPIs
• Supported cash management and control processes

• attention to detail
• collaboration
• communication
• Excel proficiency
• ERP systems experience
• NetSuite or similar ERP

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