MES Solutions Architect - Memphis, TN (Full-Time)Logical Systems LLC (LSI), a leading provider of engineering and project management services since 1985. As a growing company ranked 13th among the largest system integrators in the U.S. by Control Engineering in 2022, LSI continues to expand with offices across the U.S. and international locations in Canada and China. Recognized as a Top Workplace in the Memphis area from 2017 to 2021 by The Commercial Appeal and recognized as the Top Workplace in the Denver area in 2024 by The Denver Post, LSI offers a dynamic and collaborative work environment where your contributions will make an impact. Job SummaryLogical Systems, Inc. (LSI) is seeking a highly technical MES Solutions Architect to design, build, integrate, and support advanced Manufacturing Execution Systems across industrial and regulated manufacturing environments. This role bridges OT and IT, combining plant-floor automation expertise (PLC, SCADA, Historians) with enterprise application integration (ERP, QMS, LIMS, analytics) to deliver real-time, scalable MES architectures.
The ideal candidate can build MES applications from the ground up, understands deterministic shop-floor communication, and can design event-driven, ISA-95 aligned systems that support production execution, traceability, quality, and operational intelligence. Experience developing validation document stacks (URS/FRS/FS/DDS/IQ/OQ/PQ) is a significant plus.
Key ResponsibilitiesMES Application Developmentโข Design, develop, configure, and maintain MES applications supporting production execution, routing, WIP, material management, genealogy, traceability, OEE, downtime, SPC/SQC, quality, batch/recipe management, and eBR.
โข Develop MES runtimes and microservices using C#, .NET Core, Java, or Python.
OT-IT Integration & Industrial Connectivityโข Integrate MES with PLCs, DCS, SCADA, Historians, CMMS, LIMS, and ERP systems.
โข Develop interfaces using OPC UA/DA, MQTT, Kafka, REST, gRPC, SQL, ETL pipelines, Unified Namespace (UNS).
โข Engineer deterministic store-and-forward and guaranteed-delivery messaging patterns.
Data Modeling & Architectureโข Develop ISA-95 and/or ISA-88 aligned data models.
โข Build and optimize SQL Server, PostgreSQL, or Oracle schemas.
โข Implement transactional logic, audit trails, and event-sourced models.
Front-End Development & Visualizationโข Build UI components using React, Angular, Blazor, or MES-native UIs like Ignition Perspective or Opcenter.
โข Develop real-time dashboards, HMIs, and analytics.
Deployment, Validation & Operationsโข Support FAT, SAT, commissioning, recipe validation, and plant-floor go-lives.
โข Troubleshoot across the entire MES stack (PLC โ SCADA โ Messaging โ MES โ DB โ ERP).
โข Contribute to or oversee validation deliverables under GAMP5/CSA.
Security & Complianceโข Implement cybersecurity controls aligned with ISA/IEC 62443.
โข Support compliance with GxP, 21 CFR Part 11, and regulated industry requirements when applicable.
Required Qualificationsโข Bachelor's degree in Engineering, Computer Science, Information Systems, or equivalent experience.
โข 5+ years of hands-on MES or manufacturing system development.
โข Strong development experience with C#, .NET, Java, Python, SQL.
โข OT/IT integration experience with OPC UA, MQTT, Kafka, ETLs, Unified Namespace.
โข Experience with PLCs, SCADA, and historians in production environments.
Preferred QualificationsGMP / Pharma MES Experience (Preferred)
โข Siemens Opcenter Execution Pharma (Camstar)
โข Emerson Syncade
โข Kรถrber Werum PAS-X
โข Constellation POMSnet
โข Rockwell PharmaSuite
Additional MES Platform Experience (Bonus)โข Siemens Opcenter (Discrete/Process)
โข Critical Manufacturing
โข Parsec TrakSYS
โข Rockwell Plex
โข MFGx FUUZ
โข Inductive Automation Ignition
โข AWS / Azure cloud services
โข AVEVA System Platform / MES
Historian Experience (Significant Plus)โข AVEVA PI System (Data Archive, AF/EF)
โข DataPARC ParkView
โข Canary Historian
โข GE Proficy Historian
โข Ignition Tag Historian / SQL Bridge
Industry & Technical Experienceโข Discrete, process, pharma (preferred), food/bev, or CPG manufacturing
โข Cloud IoT/IIoT platforms (Azure IoT, AWS IoT, etc.)
โข Experience working in regulated environments (GMP/GxP)
Expected Deliverablesโข Enterprise-grade MES services with deterministic OT connectivity.
โข Version-controlled ISA-95 data models and documented architectures.
โข High-quality APIs and integration schemas for OTโIT data exchange.
โข Ability to develop or oversee the full validation documentation stack.
Healthcare and Insurance Benefits- Medical, Dental, and Vision Plans
- Company-paid Life and Accidental Death & Dismemberment
- Long-Term Disability Insurance (LTD)
- Short-Term Disability (Supplemental Option)
- Voluntary Life Insurance (Supplemental Option)
- Health Savings Accounts & Flexible Spending Accounts
Wellbeing Benefits- Paid Holidays and Vacation
- Retirement - 401K and Roth 401K w/Company Match
- Paid Parental Leave
- Paid Sick Leave
- Dependent Care (FSA)
- Employee Assistance Programs
- Fitness Membership Reimbursement
- Paid Time-off for Charitable Involvement