ERP Master Data & Operations Administrator (6 Months FTC) in Southampton

Prismatic is a technology development company, specialising in the design, manufacture and delivery of innovative, high value aerospace products and systems. Prismatic is a subsidiary of BAE systems, led by a technically and commercially focused team. Our cutting-edge systems (such as the high-altitude PHASA-35) have clear commercial value, are developed at pace and address critical customer needs.

The ERP Master Data & Operations Administrator will sit within the Business Operations function and support the day-to-day management of ERP (SAP) master data across Finance, Procurement, and Sales. This is a hands-on, operational role focused on the accurate creation and maintenance of key business data, enabling smooth transaction processing, reporting, and business performance. In addition to core ERP responsibilities, the role will provide flexible administrative support to functions such as Finance and Facilities where capacity allows. This may include supporting transactional activities and general business operations to ensure smooth day-to-day running across the organisation. The role operates as a shared service across Prismatic Ltd and Malloy Aeronautics, with time split between supporting both organisations. The successful candidate will work with stakeholders across both entities to ensure consistent and accurate data management.

Tasks and Accountabilities

• Create and maintain ERP Finance, Procurement, and Sales master data, including:
• Business Partners (customers and suppliers).
• G/L accounts, cost centres, and related finance structures.
• Sales BOMs and associated data.
• Provide ERP master data support across Prismatic & Malloy Aeronautics, ensuring consistency of data standards and processes.
• Manage master data processes, ensuring approved data requests are in line with internal controls and procedures.
• Support audit activities by ensuring data is traceable and well-documented.
• Act as a first point of contact for internal master data queries.
• Ensure data accuracy, completeness, and consistency across systems.
• Liaise with business functions to resolve master data issues.
• Assist in maintaining data integrity for reporting and operational use.
• Contribute to ongoing data clean-up and process improvement initiatives.
• Provide other ad-hoc administrative support to businesses as required.
• Prioritise core ERP responsibilities while flexing to support wider business needs.

Requirements

Essential:

• Experience working with an ERP system such as SAP S/4HANA (2–5 years preferred).
• Strong attention to detail and accuracy in data handling.
• Good organisational and administrative skills.
• Comfortable following structured processes and approvals.
• Comfortable working in a dynamic environment and supporting multiple business functions as required.
• Proficient in Microsoft Excel (e.g. lookups, data manipulation).
• Strong communication skills and ability to work across teams.

Desirable:

• Exposure to SAP modules such as SD, MM, or FI.
• Experience in a finance, procurement, or operations support role.
• Experience working in a multi-entity or shared service environment.
• Basic understanding of finance, commercial and procurement processes.

What We Offer

• Location: Alton (Hampshire), UK.
• Contract: Permanent, 37.5 hours per week (excluding breaks). Hybrid working (where applicable), giving you the flexibility to balance time between home and our offices (norm is 3 days a week).
• Salary: Competitive – dependent on experience.
• Bonus: Non contractual company performance related bonus.
• Pension: 10% company contribution, plus salary exchange options for AVCs.
• Green Benefits: Access to our Green Car/EV scheme via salary exchange.
• Annual Leave: 25 days plus bank holidays (rising to 28 days after 3 years’ service).
• Employee Schemes: Eligibility for the BAE Systems Share Incentive Scheme, Company Performance Free Share awards, Cycle to Work scheme, and a Halfords Trade Discount Card.
• Community & Culture: Social and employee engagement activities through our Prismatic Pulse group.
• Wellbeing: Access to Occupational Health support, including an Employee Assistance Programme (EAP).

How to Apply

To apply, please send your CV and a covering email to . In your application, please confirm:

• That you have the right to work in the UK and can commute to the job’s location of work.
• That you have been a UK resident for at least 5 years and can meet any required background checks (or security clearance requirements where applicable).
• Your salary expectations for the role.
• Your availability or current notice period.

Inclusion

We’re committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our team and is vital to the work we do.

Proud to Support the Armed Forces Community

We are proud signatories of the Armed Forces Covenant and holders of the Bronze Award, demonstrating our commitment to supporting those who serve and have served. We recognise that the discipline, teamwork, problem-solving skills, and resilience gained through military life are a huge asset to our organisation. That’s why we actively encourage applications from veterans, reservists, and the partners and families of those serving. If you’ve served in any capacity, or supported someone who has, we’d love to hear from you.

Agencies - Please note that we only hire directly.