Job Description

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Join EY and help to build a better working world.
Critical Manufacturing MES Developer

About the Role:
We are looking for experienced professionals skilled in Critical Manufacturing MES (CM-MES) to deliver end-to-end MES solutions for Discrete and Life Sciences manufacturing. The role focuses on process modeling, configuration, and technical development to enable data-driven, efficient, and compliant manufacturing operations.
Key Responsibilities:

• Configure and customize Critical Manufacturing MES modules (process modeling, material, equipment, and quality configurations).
• Develop and enhance backend logic, APIs, and system interfaces using C#, ASP.NET MVC, Web API, and SQL Server.
• Create data integration solutions between MES, ERP (SAP), SCADA, and automation systems via REST, OPC UA, MQTT, or Web Services.
• Build and maintain UI extensions using HTML, CSS, JavaScript, and JScript for operator and supervisor screens.
• Support electronic batch records (EBR/eDHR), validation documentation, and compliance with GMP and FDA standards.
• Participate in system testing, troubleshooting, and go-live support for each implementation wave.
• Collaborate with cross-functional teams to deliver MES technical functionality and continuous improvements.

Required Skills and Experience:

• Overall Relevant Experience: 5-9 years
• Certification is Mandatory: Critical Manufacturing Associate - Frontend/Backend/modeler Developer /Automation / Administrator

Technical Skills:

• CM-MES configuration and workflow modeling
• C#, ASP.NET MVC, Web API, SQL Server
• SAP MES, SAP MII exposure for ERP integration
• HTML, CSS, JavaScript, JScript, Python
• Power BI or dashboarding for MES reporting
• Automation & Integration: OPC UA, MQTT, SECS/GEM protocols
• Familiarity with Siemens OpCenter or similar MES platforms (added advantage)
• Domain: Discrete Manufacturing / Life Sciences / Medical Devices
• Understanding of: ISA-95, GMP, and validated system environments

EY | Building a better working world
EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.
Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.
EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.

Skills Required