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Job description
MES Solutions Architect – Memphis, TN (Full‑Time)
Logical Systems, Inc. (LSI), a leading provider of engineering and project management services since 1985. The company is ranked 13th among the largest system integrators in the U.S. by Control Engineering in 2022 and continues to expand with offices across the U.S. and international locations in Canada and China. Recognized as a Top Workplace in the Memphis and Denver areas, LSI offers a dynamic and collaborative work environment where contributions make an impact.
Key Platforms
Siemens Opcenter (Discrete/Process)
Ignition Tag Historian / SQL Bridge
Job Summary
Logical 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 Responsibilities
MES Application Development
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.
Develop MES runtimes and microservices using C#, .NET Core, Java, or Python.
OT–IT Integration & Industrial Connectivity
Integrate MES with PLCs, DCS, SCADA, Historians, CMMS, LIMS, and ERP systems.
Develop interfaces using OPC UA/DA, MQTT, Kafka, REST, gRPC, SQL, ETL pipelines, Unified Namespace (UNS).
Engineer deterministic store‑and‑forward and guaranteed‑delivery messaging patterns.
Data Modeling & Architecture
Develop ISA‑95 and/or ISA‑88 aligned data models.
Build and optimize SQL Server, PostgreSQL, or Oracle schemas.
Implement transactional logic, audit trails, and event‑sourced models.
Front‑End Development & Visualization
Build UI components using React, Angular, Blazor, or MES‑native UIs like Ignition Perspective or Opcenter.
Develop real‑time dashboards, HMIs, and analytics.
Deployment, Validation & Operations
Support FAT, SAT, commissioning, recipe validation, and plant‑floor go‑lives.
Troubleshoot across the entire MES stack (PLC → SCADA → Messaging → MES → DB → ERP).
Contribute to or oversee validation deliverables under GAMP5/CSA.
Security & Compliance
Implement cybersecurity controls aligned with ISA/IEC 62443.
Support compliance with GxP, 21 CFR Part 11, and regulated industry requirements when applicable.
Required Qualifications
Bachelor’s degree in Engineering, Computer Science, Information Systems, or equivalent experience.
5+ years of hands‑on MES or manufacturing system development.
Strong development experience with C#, .NET, Java, Python, SQL.
OT/IT integration experience with OPC UA, MQTT, Kafka, ETLs, Unified Namespace.
Experience with PLCs, SCADA, and historians in production environments.
Preferred Qualifications – GMP / Pharma MES Experience
Siemens Opcenter Execution Pharma (Camstar)
Emerson Syncade
Körber Werum PAS‑X
Constellation POMSnet
Rockwell PharmaSuite
Additional MES Platform Experience (Bonus)
Siemens Opcenter (Discrete/Process)
Critical Manufacturing
Parsec TrakSYS
Rockwell Plex
MFGx FUUZ
Inductive Automation Ignition
AWS / Azure cloud services
AVEVA System Platform / MES
Historian Experience (Significant Plus)
AVEVA PI System (Data Archive, AF/EF)
DataPARC ParkView
Canary Historian
GE Proficy Historian
Ignition Tag Historian / SQL Bridge
Industry & Technical Experience
Discrete, process, pharma (preferred), food/bev, or CPG manufacturing
Cloud IoT/IIoT platforms (Azure IoT, AWS IoT, etc.)
Experience working in regulated environments (GMP/GxP)
Expected Deliverables
Enterprise‑grade MES services with deterministic OT connectivity.
Version‑controlled ISA‑95 data models and documented architectures.
High‑quality APIs and integration schemas for OT↔IT data exchange.
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
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Worksite address
memphis, TN, 37544, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.