| SAP S/4HANA MES Liaison/MES Upgrade Assessment Lead
Location: Remote W2 Position | Name | Required | | MES | Yes | | | SAP | Yes | |
Role Summary
The SAP S/4 MES Liaison serves as the primary bridge between enterprise ERP (SAP S/4) and Manufacturing Execution Systems (MES), ensuring alignment of testing schedule and data, with escalation of issues found.
This role will also assess each MES upgrade release from the MES vendor for assessment and upgrade readiness. Each release will require an executive summary and recommendation from the Upgrade lead to MES Leadership.
This role is part of the MES Center of Excellence.
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Key Responsibilities
ERP MES Integration & Functional Liaison
Act as the day-to-day liaison for testing sche3dul4e and data creation for SAP S/4HANA program teams.
Facilitate the end-to-end process view across SAP and MES (e.g., production orders, confirmations, backflush, material staging, labor reporting, scrap/rework, genealogy/traceability, quality results, batch/serial management).
Translate manufacturing requirements into SAP/MES functional specifications and integration requirements.
Partner with solution architects to define integration patterns (e.g., APIs, IDocs, middleware/eventing) and ensure reliable, auditable data flows.
Drive master data alignment and governance across SAP and MES (materials, BOMs, routings/recipes, work centers/resources, production versions, serial/batch rules).
MES Upgrade Assessment & Readiness (Primary Focus)
Lead structured MES upgrade assessments including:
Current-state MES capability and configuration review
Interface/integration inventory and criticality scoring
Performance, scalability, and availability assessment
Develop upgrade options and recommendations (e.g., in-place vs. migration, phased rollout vs. big-bang), including pros/cons, risks, dependencies, and cost/effort estimates.
Produce a comprehensive MES Upgrade Assessment Report and roadmap aligned with SAP S/4HANA milestones.
Program Delivery Support (Planning through Hypercare)
Manage integrated workplans across SAP, MES, and middleware teams; track RAID (risks, assumptions, issues, dependencies).
Plan and execute testing strategy spanning SAP and MES:
SIT/E2E scenarios, regression, performance testing
Data reconciliation and interface validation
Shop-floor pilot testing and production readiness
Support cutover planning, including downtime analysis, fallback strategies, and shop-floor continuity planning.
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Required Qualifications
Bachelor's degree in Information Systems, Engineering, Supply Chain, Manufacturing, or equivalent experience.
5+ years experience in manufacturing systems roles involving MES and SAP (ECC and/or S/4HANA).
Demonstrated experience supporting or leading MES upgrades/major version changes (assessment, planning, execution, hypercare).
Strong understanding of manufacturing processes and data flows
Experience with integration concepts and tools (e.g., SAP IDocs/BAPIs, REST/SOAP APIs, middleware such as SAP CPI/PO, MuleSoft, Boomi, Kepware, or similar).
Excellent facilitation, requirements elicitation, and documentation skills.
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Preferred Qualifications
Hands-on knowledge of common MES platforms (e.g., Siemens Opcenter, Rockwell FactoryTalk ProductionCentre, Korber PAS-X, GE Proficy, Dassault DELMIA Apriso, SAP Digital Manufacturing, Critical Manufacturing, Ignition/MOM frameworks).
Exposure to SAP manufacturing-related modules and processes: PP/DS, PP-PI, QM, EWM/IM, PM, Batch Management, Serial Number Management.
Experience with ISA-95 models and manufacturing integration standards.
Experience in multi-site deployments and global template rollouts.
Experience with CSV/validation and regulated manufacturing.
SAP certification(s) and/or MES vendor certification(s).
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Core Competencies
Systems thinking across ERP MES s
Structured assessment and roadmap development
Risk management and stakeholder alignment
Strong analytical and troubleshooting ability
Clear written and verbal communication
Ability to operate effectively in both plant-floor and corporate IT settings
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Travel & Work Environment
Travel may be required to manufacturing sites during assessment, testing, and go-lives.
Occasional off-shift support may be required during cutovers or critical shop-floor events.
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