Are You Ready to Make an Impact at RSSL?
Join Our Mission to Transform Lives Through Science, Innovation and Collaboration
At Reading Scientific Services Ltd (RSSL), we lead the way in scientific analysis, research, consultancy, and training. We provide services to the food, pharmaceutical, and consumer goods industries, as well as our parent company, Mondelez International.
We are not just dedicated to delivering world-class scientific solutions and outstanding customer service, we are recognised for it. We were named Best Performing Professional Services Company of the Year at the One Nucleus Awards and CRO of the Year at the OBN awards. We were also finalists for multiple recent multiple awards recognising our commitment to skills and rising talent.
Mondelēz International’s Reading Science Centre provides unique opportunities in the provision of scientific analysis, research, consultancy and training to its parent company and the wider food and pharmaceutical sectors. Operating as Reading Scientific Services Ltd (RSSL), we apply leading-edge science with integrity and service to exceed expectations and deliver greater value to our clients.
This role is responsible for assisting in a broad range of accounting and finance activities working closely with other members of the finance team, it has primary responsibility for day-to-day sales and purchase ledger management, with processing support from the shared services unit, and assigned month-end tasks to include reconciliation work and journal preparation.
Main Responsibilities:
Manage Accounts Receivable process by liaising with customers, labs, credit control and Shared Services to ensure invoices are processed promptly:
Issue of sales invoices, credit notes and customer statements
Loading invoices to various E-Invoicing portals
Preparation of intercompany sales forms in SAP for internal customers
Postings of receipts from customers in accounting system SAP
Receipt of customer credit card payments
Help resolve customer or lab queries related to invoices and POs
Assist with month end billing and statement processes
Manage Accounts Payable process by liaising with suppliers, Purchasing and Shared Services to ensure invoices are processed and paid promptly:
Monitor and clear parked and blocked invoices in SAP
Work with all involved parties to resolve vendor queries and disputes
Proactively review AP ledger and highlight issues for resolution
Respond immediately to push urgent/on stop issues through for same-day resolution, working closely with purchasing and shared services and informing or escalating to relevant stakeholders within the business
Completion of assigned period-end tasks to tight monthly deadlines:
General ledger and subledger reconciliations (GR-IR, stock, bank, car lease costs) and input to Blackline reconciliation tool
Recurring and ad hoc journals preparation and posting
Prepare and post accruals and prepayments journals, with responsibility for maintaining corresponding reconciled monthly schedules
Training and marketing cost reconciliations and SAP project settlements
Provide periodic cost and other ad hoc analyses to labs and cost centre managers, and work with Finance and IT team to improve site-wide reporting
Work closely with Purchasing team to manage month end close of goods receipting and accounts payable ledger, also providing independent verification of stock controls and assistance with process improvements
Point of contact for the Reading site for the Travel & Expenses system (Concur) and company credit cards, resolving queries with the global T&E team
Work closely with other members of the finance team to ensure that team deadlines are met, and all leave is adequately covered, assisting with ad hoc tasks and completion of month-end processes
Prepare and submit Capex requisition and disposal forms
Know the ethical and legal compliance responsibilities of the position and raise questions or concerns when faced with related issues, applying integrity in all aspects of professional conduct
Qualifications:
We welcome candidates educated by experience
Basic knowledge of double entry bookkeeping and accounts required
Experience of working with SAP desirable
Good Excel spreadsheet skills
Hands on experience in accounting
Be extremely organised and motivated
Possess strong attention to detail skills and be able to prioritise multiple tasks
Possess excellent written and verbal communication skills
Excellent numeracy, accuracy and attention to detail
More about this role
In return for your commitment, drive and enthusiasm, we offer an attractive benefits package within a highly successful international business that offers financial rewards and resources, including:
Opportunities to learn and develop
Performance Related Bonus scheme
Contributory pension (between 8% to 11% employer contribution)
Life assurance
Employee Assistance Programme (EAP)
A flexible benefits programme (Gym discounts, private health insurance, restaurant discounts, etc).



Reading Scientific Services Ltd (RSSL) is a cutting-edge contract research organisation (CRO), providing research, analysis and consultancy to the food, consumer goods and life science sectors. Whether we are creating new products, validating medicines or solving investigations, we take pride in being a leader in our field, serving clients from across 70 countries. Enriched by our parent company, Mondelēz International, our team are committed to transforming lives through science, innovation and collaboration.
Curious about us and want to learn more?
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RSSL is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, colour, religion, gender, sexual orientation or preference, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law.
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Regular
Accounting & External Reporting
Finance
