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Job Title: MES Subject Matter Expert (MES SME)
Department: IT/Manufacturing Operations
Reports To: MES System Manager
Job Summary
We are seeking an experienced Manufacturing Execution System (MES) Subject Matter Expert to join our team at our Caswell manufacturing facility. This is a key role responsible for maintaining, enhancing and supporting our MES environment while working closely with Production, Engineering, Quality and IT teams.
The successful candidate will combine strong technical expertise with an understanding of manufacturing operations, helping to optimise production processes, ensure system reliability and compliance, and play a leading role in future MES development and transformation initiatives.
Key ResponsibilitiesMES Management & Support- Act as the primary technical expert for the site's Manufacturing Execution System.
- Configure, maintain and support the existing MES environment to ensure high availability and reliable performance.
- Work with IT and Engineering teams to integrate MES with enterprise systems, including ERP and other manufacturing platforms.
- Ensure disaster recovery (DR) processes are maintained and tested annually.
- Provide expertise in PROMIS architecture, including BOMs, routing structures and Datalink scripting.
- Lead troubleshooting activities and coordinate resolution of MES-related issues.
- Analyse manufacturing workflows and identify opportunities to improve efficiency through MES enhancements.
- Implement system changes that improve productivity, traceability and data integrity.
- Develop and maintain standard operating procedures (SOPs), process documentation and best practices.
- Support continuous improvement initiatives across manufacturing operations.
- Deliver training and guidance to production and operational teams on MES functionality and best practices.
- Act as the primary point of contact for user support and enhancement requests.
- Collaborate effectively with cross-functional teams and external vendors to deliver system improvements.
- Ensure MES configurations comply with applicable quality and regulatory standards, including ISO requirements.
- Support internal and external audits through accurate documentation and change control.
- Maintain comprehensive records of system updates, configurations and workflows.
- Stay informed of emerging MES technologies and industry best practices.
- Evaluate and recommend new capabilities that enhance manufacturing performance.
- Play a leading role in the architecture, planning and deployment of future MES upgrades or replacement solutions.
- Bachelor's degree in Computer Science, Engineering, Information Systems or a related discipline, or equivalent industry experience.
- Significant experience implementing, configuring and supporting Manufacturing Execution Systems such as PROMIS, Siemens Opcenter or Camstar.
- Strong understanding of manufacturing processes and production workflows.
- Experience with scripting and automation, including DCL or similar technologies.
- Excellent analytical and problem-solving skills with the ability to diagnose complex technical issues.
- Strong communication skills and the ability to work effectively across technical and operational teams.
- Experience within semiconductor manufacturing.
- Knowledge of OpenVMS and Red Hat Enterprise Linux.
- Experience integrating MES with ERP, PLC or other manufacturing systems.
- Familiarity with PROMIS DataLink scripting, BOMs and routing architecture.
- Experience with web services (Apache, IIS), C#, ASP.NET and JavaScript.
- Understanding of SOAP, REST or PROMIS-TP APIs.
- Strong SQL skills across Oracle, Microsoft SQL Server or MySQL.
- Experience using Jira, Confluence, Git and IT service management tools.
- A proactive approach to continuous improvement and innovation.
- The ability to manage multiple priorities in a fast-paced manufacturing environment.
- Strong stakeholder management skills and a collaborative working style.
- A passion for delivering robust, reliable and efficient manufacturing systems.
This role is primarily based at our Caswell manufacturing site and may require occasional travel to other company locations or training events.
We are an equal opportunity employer and value diversity at our company.
We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.
We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.
Please contact us to request accommodation.
Skills Required
- Bachelor's degree in Engineering, Computer Science, Information Systems, or related field
- Extensive experience configuring and managing MES (PROMIS, Ops Center, or Camstar)
- Experience with Datalink scripting on PROMIS and familiarity with PROMIS BOMS and routing architecture
- Programming experience with Scripts and DCL
- Strong knowledge of manufacturing processes and workflows
- Familiarity with systems integration, including ERP and PLC systems
- Experience installing, deploying, maintaining, and testing MES and DR systems
- Strong knowledge of SQL (Oracle, MS SQL, MySQL)
- Experience with JIRA, Confluence, GIT and IT service desk tools
- Knowledge of web services (Apache / IIS)
- Ability to train production staff and provide ongoing MES technical support
- Strong analytical, communication, and multi-project management skills
- Knowledge of OpenVMS and RedHat/Linux
- Experience in semiconductor manufacturing
- Web development experience (C#, ASP.NET, JavaScript)
- Familiarity with API calls (SOAP / REST / PROMIS-TP)
- Knowledge and experience of other MES systems
Lumentum Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lumentum and has not been reviewed or approved by Lumentum.
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Equity Value & Accessibility — Equity is positioned as a meaningful part of total compensation, with RSUs frequently framed as a valued component of offers. An employee stock purchase plan with a discount and look-back further reinforces equity access as part of rewards.
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Retirement Support — Retirement benefits are presented as a clear strength, with a 401(k) match and immediate vesting highlighted as supportive features. Auto-enrollment and match eligibility details indicate a structured retirement program for U.S. employees.
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Healthcare Strength — Multiple medical plan options are described, including PPO and HDHP/HSA choices and Kaiser in some locations, suggesting breadth and choice in coverage. Health and well-being programming is also characterized as part of a comprehensive benefits approach.
Lumentum Insights
What We Do
Lumentum (NASDAQ: LITE) is a market-leading designer and manufacturer of innovative optical and photonic products enabling optical networking and laser applications worldwide. Lumentum optical components and subsystems are part of virtually every type of telecom, enterprise, and data center network. Lumentum lasers enable advanced manufacturing techniques and diverse applications including next-generation 3D sensing capabilities. Lumentum is headquartered in San Jose, California with R&D, manufacturing, and sales offices worldwide. For more information, visit www.lumentum.com.
