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 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 (Preferred)
• 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

About the company

Logical Systems designs automation and control systems for manufacturers and industrial operators, linking production equipment with the information used to run a plant. Its engineers combine process and mechanical design with electrical engineering, so a project covers both the physical equipment and the systems that control it. The company builds control panels, configures production software and connects factory data to business systems, earning fees for engineering and integration services. It also manages procurement and construction for selected projects, giving customers a single contractor for the work. Logical Systems was founded in 1985 and is headquartered in Memphis, Tennessee.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Memphis, TN

Founded

1985

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Simplify's Take

What believers are saying

Golden field engineers have disclosed pay: LSI lists $75,000-$110,000 annually, with overtime available.
LSI describes itself as debt-free in its employer profile.
Partner access deepened in November 2025: LSI received Rockwell Automation's highest, invitation-only Platinum integrator status.

What critics are saying

Client service disrupts schedules: Golden's field engineer role requires extensive travel and rotating after-hours telephone support.
Cybersecurity work is geographically constrained: LSI requires engineers to commute to a regional office.
LSI's cybersecurity applicants need at least three years assessing, designing and implementing networks for industrial control systems.

What makes Logical Systems unique

Equipment choices stay independent: LSI is not owned by an equipment manufacturer.
Factory experience shapes LSI designs: many employees previously worked as plant engineers.
LSI has an entry route without college: Phoenix panel fabricators require a high school diploma.

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Logical Systems

MES Solutions Architect

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