Location: Midlands / South West / Flexible Working pattern: Hybrid, with travel to Müller manufacturing sites as required Reports to: Functional Head of Automation & Controls MMI
About the role
Want to use your software development skills to make a real difference in a manufacturing environment?
We’re looking for an MES Business Analyst to help develop, support and improve the Operational Technology (OT) systems that keep our manufacturing sites connected and running reliably.
Working across Manufacturing, Automation and IT, you’ll develop applications, manage manufacturing data platforms and support critical OT infrastructure. You’ll also help improve access to production data, troubleshoot technical issues and deliver solutions that make our manufacturing operations more efficient, secure and resilient.
What you’ll do
Develop OT applications using C#, .NET and web technologies to improve manufacturing efficiency and data visibility.
Manage manufacturing data platforms, support historians, including AspenTech IP21 and GE Proficy, and develop reporting and integration solutions using APIs, OLEDB and industrial communication technologies.
Develop and support SQL Server databases, including queries, database objects, performance and security.
Support OT infrastructure, including Windows Server, Hyper-V, virtual machines and backup solutions.
Support SCADA and manufacturing systems, work with Automation SCADA developers and help maintain and develop iFIX / AVEVA InTouch applications, VBA functionality and site production systems.
Connect OT and IT systems, working with central IT on networking, firewalls, servers and infrastructure improvements - ensuring solutions meet cybersecurity and governance requirements.
Drive continuous improvement through strong technical standards, documentation, knowledge sharing and root cause analysis.
What you’ll bring
We’re looking for someone with strong software development and problem-solving skills, ideally gained within a manufacturing or OT environment.
Strong C# and .NET development experience, including ASP.NET, MVC, Razor and Blazor.
Experience developing and administering Microsoft SQL Server.
Knowledge of Windows Server environments and Hyper-V virtualisation.
Experience integrating OT systems with enterprise applications.
Understanding of industrial communications, OPC environments and OT networking.
Experience with historian platforms such as IP21, Proficy or similar.
Strong analytical, troubleshooting and organisational skills.
The ability to work effectively with both technical and non-technical stakeholders across multiple sites.
Even better if you have experience with
AspenTech IP21 or GE Proficy Historian
iFIX / AVEVA InTouch and VBA development
Manufacturing Execution Systems (MES)
OT cybersecurity
Industrial automation
The impact you’ll make
You’ll play an important role in keeping Müller’s manufacturing technology reliable, secure and connected. From improving access to production data to solving site issues and developing new solutions, your work will help our manufacturing teams get more from the systems they rely on every day.
You can find out more about Müller and what it’s like to work for us by clicking here Careers at Müller UK & Ireland
Neutral 2–4 sentence summary of what working at this company is like, drawn from public reviews and press coverage. Tone, collaboration style, pace, benefits highlights.
£45,000 – £60,000 (Glassdoor, Levels.fyi, 2025)
