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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Master Data Controller and Key User - **Company:** Mars - **Location:** Castle Cary, UK - **Salary:** £39,500.0 - £49,500.0 - **Contract:** Temporary contract - **Skills:** Microsoft Excel, Data Transmissions, Data Governance, Microsoft Dynamics NAV, Oracle (Applications), SAP (Applications), System Testing, Systems Integration, Data Management - **Published:** September 3, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=3be2f0eea2310c4d ## About the Role * Experience in a Supply Chain, Logistics, Master Data, or Operations role, ideally within an FMCG environment. * Hands-on experience working with ERP systems, preferably as a Key User or Super User (Navision, SAP, Oracle, or similar). * Strong understanding of master data management, including product data, GTINs, GS1 standards, and data governance principles. * Knowledge of EDI processes and system integrations, with the ability to diagnose and resolve data and transaction issues. * Experience supporting system testing, upgrades, and User Acceptance Testing (UAT) activities. * Advanced Microsoft Excel skills, with strong analytical capabilities and excellent attention to detail. * Fluent English (written and verbal) is essential; French language skills would be advantageous. ## Description Royal Canin is embarking on a major business transformation programme, introducing new technology, standardised processes, enhanced data and analytics, and dedicated change management to support future growth. As part of the first implementation wave in 2027, the European Key Accounts (EKA) team is seeking a Master Data Controller ERP Key User to provide critical operational support during the transition. This role combines responsibility for maintaining accurate end-to-end master data across major European customers with acting as the key user for the Microsoft Dynamics Navision ERP system. Working with pan-European stakeholders in a fast-paced, entrepreneurial environment, you will support daily operations, drive system improvements, lead technical projects, and play a key role in ensuring business continuity throughout the transformation journey. What's in it for you? * Career growth opportunities with structured development Mars University * Private healthcare equal parental leave * Generous pension (up to 9% contribution) * Life assurance (4x salary) * Gym membership wellbeing support * Annual leave starting at 24 days, rising to 32 with service, * Maintain accurate and aligned master data across customer and internal systems, ensuring uninterrupted order processing and supply chain operations. * Collaborate with key European customers to manage product catalogues, pricing, logistics parameters, and promotional data. * Lead master data activities for new product launches, product changes, and lifecycle management to ensure seamless market introduction. * Act as the Navision ERP Key User, providing first-line support, troubleshooting system issues, and driving continuous system improvement. * Manage EDI integrations and system interfaces, resolving data transmission issues and ensuring effective communication with customers and partners. * Coordinate system testing, upgrades, and enhancement projects while representing the business within the European ERP Key User community. ## Related Videos - [In-depth .NET Azure Functions: Isolated mode, performance and durable AI agents](https://www.wearedevelopers.com/videos/100207-in-depth-net-azure-functions-isolated-mode-performance-and-durable-ai-agents) - [How To Test A Ball of Mud](https://www.wearedevelopers.com/videos/173-how-to-test-a-ball-of-mud) - [Data Governance in the Era of AI](https://www.wearedevelopers.com/videos/1622-data-governance-in-the-era-of-ai) - [Empowering Retail Through Applied Machine Learning](https://www.wearedevelopers.com/videos/976-empowering-retail-through-applied-machine-learning) - [From Syntax to Singularity: AI’s Impact on Developer Roles](https://www.wearedevelopers.com/videos/900-from-syntax-to-singularity-ai-s-impact-on-developer-roles) - [How I Built QA from Scratch in a Scaling Startup - no fluff real life story](https://www.wearedevelopers.com/videos/2041-how-i-built-qa-from-scratch-in-a-scaling-startup-no-fluff-real-life-story) ## Related Articles - [Everything a Developer Needs to Know About MCP with Neo4j](https://www.wearedevelopers.com/magazine/604-everything-a-developer-needs-to-know-about-mcp-with-neo4j) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [UK Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/326-uk-business-culture-and-etiquette) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers)