MES Testing & Validation Engineer - Only Immediate joiner -15 Days

Senior MES Test Automation Engineer (Industry 4.0 / SCADA / Manufacturing Systems)

Experience: 8+ Yrs
Role: Senior MES Test Automation Engineer (Industry 4.0 / SCADA / Manufacturing Systems)

Domain: Industrial Automation / Manufacturing / Process Industry
Employment: Full-Time / Contract-to-Hire
Location: Any where in India.

Job Description

MES Validation, Testing & Quality Assurance Engineer

Position: MES Validation, Testing & Quality Assurance Engineer

Role Overview

We are looking for an experienced MES Validation, Testing & Quality Assurance Engineer with strong expertise in Manufacturing Execution Systems (MES), SCADA, PLC connectivity, IT/OT integration, databases, and Industry 4.0 applications.

The ideal candidate will be responsible for validating and testing end-to-end manufacturing solutions, ensuring data integrity, system reliability, integration accuracy, regulatory compliance, and production readiness across shopfloor and enterprise environments.

The candidate should have hands-on experience working with

MES/SCADA platforms, Ignition, Kepware, PLCs, industrial communication protocols, SQL databases, and enterprise systems such as SAP/ERP.

Key Responsibilities

1. MES Testing & Validation

• Develop and execute comprehensive test strategies, test plans, test scenarios, test cases, and test scripts for MES, SCADA, and Industry 4.0 applications.
• Validate end-to-end manufacturing workflows, including:
• Production tracking
• Work order execution
• OEE monitoring
• Downtime management
• Traceability and genealogy
• Recipe management
• Production reporting
• Manufacturing performance monitoring
• Perform Functional, System, Integration, Regression, Performance, and User Acceptance Testing (UAT).
• Ensure MES functionality aligns with business, operational, manufacturing, and technical requirements.

2. Manufacturing Data Integrity & Validation

• Validate the accuracy, completeness, consistency, and integrity of manufacturing data across shopfloor systems, MES, SCADA, historians, databases, and enterprise applications.
• Perform end-to-end data reconciliation between manufacturing and enterprise systems.
• Verify business rules, calculations, transactions, workflows, and system-generated manufacturing data.
• Validate real-time and historical production data.

3. Machine Connectivity & IT/OT Integration Testing

• Validate connectivity and data acquisition between manufacturing equipment, PLCs, SCADA systems, MES, and enterprise applications.
• Test industrial automation platforms including:
• Siemens
• Rockwell / Allen-Bradley
• Schneider
• Mitsubishi
• Omron
• Validate industrial communication protocols such as:
• OPC-UA / OPC-DA
• MQTT
• Modbus TCP/IP
• Ethernet/IP
• Profinet
• Euromap63
• Euromap77
• MTConnect
• Validate reliable and secure PLC-to-SCADA/MES communication and end-to-end shopfloor data flows.

4. Kepware & Edge Connectivity Validation

• Test Kepware server configurations, tags, device connectivity, tag quality, data refresh rates, and communication reliability.
• Validate PLC Kepware SCADA/MES data flows.
• Test communication resilience, connection failures, recovery, and data consistency.
• Identify and troubleshoot connectivity and data acquisition issues.

5. SCADA & Ignition Testing

• Perform validation and testing of Inductive Automation Ignition platforms, including:
• Ignition Gateway
• Vision
• Perspective
• Historian
• Alarm Management
• Reporting
• Dashboards
• Scripting
• Validate Ignition APIs, web services, and third-party integrations.
• Verify real-time visualization, alarms, historical data, reporting, and system performance.

6. Enterprise System Integration Testing

• Validate integrations between MES, SAP, ERP, WMS, LIMS, historians, and other enterprise applications.
• Test APIs, web services, middleware, and data exchange mechanisms.
• Validate bidirectional IT/OT data flows while ensuring transactional integrity and traceability.
• Test scenarios involving system failures, retries, duplicate transactions, and data synchronization.

7. Database Testing & Validation

• Perform backend validation using:
• Microsoft SQL Server
• PostgreSQL
• MySQL
• Execute SQL queries to validate manufacturing transactions and business rules.
• Validate:
• Stored procedures
• Views
• Triggers
• ETL processes
• Historian data
• Data reconciliation
• Data integrity
• Reconcile frontend/MES data against backend database records.

8. Manufacturing KPI, Reporting & Analytics Validation

• Validate manufacturing KPIs and calculations, including:
• OEE
• MTBF
• MTTR
• Downtime
• Throughput
• Scrap rate
• Production efficiency
• Cycle time
• Verify dashboards, reports, and analytics against real-time and historical manufacturing data.
• Ensure reported KPIs accurately reflect underlying production transactions.

9. Test Automation & Continuous Improvement

• Support the development and implementation of automated testing frameworks for MES, SCADA, APIs, databases, and integration scenarios.
• Identify repetitive manual testing activities suitable for automation.
• Develop reusable automated regression test assets to improve testing coverage and efficiency.
• Analyse recurring defects, quality trends, and testing bottlenecks.
• Drive continuous improvement, standardization, and best practices across the Industry 4.0 testing lifecycle.

10. FAT, SAT, UAT & Production Readiness

• Prepare and execute:
• FAT Factory Acceptance Testing
• SAT Site Acceptance Testing
• UAT User Acceptance Testing
• Production readiness assessments
• Coordinate with engineering, manufacturing, IT, OT, vendors, and business teams during validation activities.
• Verify corrective actions and ensure systems meet acceptance criteria before production deployment.

11. Defect Management & Root Cause Analysis

• Manage defects throughout the complete defect lifecycle.
• Log, track, prioritize, and communicate defects using appropriate defect management tools.
• Perform root cause analysis for functional, integration, connectivity, and data-related issues.
• Work with development, automation, engineering, and manufacturing teams to resolve defects.
• Perform retesting and regression testing following defect resolution.

12. System Reliability & Operational Support

• Validate High Availability (HA), failover, backup, restore, and Disaster Recovery (DR) scenarios.
• Support production readiness and operational stability.
• Monitor system quality, production telemetry, and operational performance.
• Identify opportunities to improve system reliability, performance, and business continuity.

13. Compliance & Validation

• Ensure testing and validation activities align with applicable manufacturing and Industry 4.0 standards, including:
• ISA-95
• ISA-88
• GAMP5
• Maintain appropriate validation evidence and ensure traceability between requirements, test cases, results, and defects.
• Support audit and regulatory requirements where applicable.

14. Documentation & Knowledge Management

• Prepare and maintain:
• Test strategies
• Test plans
• Test cases and scenarios
• Requirements Traceability Matrices (RTM)
• Test execution evidence
• Validation records
• Defect logs
• Test reports
• Compliance documentation
• Operational handover documents
• Ensure all validation and testing artifacts are complete, accurate, traceable, and audit-ready.
• Contribute to knowledge management, standard operating procedures, and testing best practices.

Required Technical Skills

Must-Have

• Strong experience in MES testing, validation, or quality assurance.
• Hands-on experience with manufacturing processes and shopfloor applications.
• Experience with SCADA and MES integration.
• Experience with PLC connectivity and IT/OT data flows.
• Strong understanding of SQL/database validation.
• Experience with integration testing and data reconciliation.
• Experience with FAT, SAT, UAT, regression, functional, and system testing.
• Strong understanding of manufacturing concepts such as OEE, downtime, traceability, genealogy, work orders, recipes, and production tracking.

Preferred / Good to Have

• Experience with Ignition SCADA.
• Experience with Kepware.
• Knowledge of OPC-UA / OPC-DA, MQTT, Modbus TCP/IP, Ethernet/IP, and Profinet.
• Experience with Siemens, Rockwell/Allen-Bradley, Schneider, Mitsubishi, or Omron PLC environments.
• Experience integrating MES with SAP/ERP, WMS, LIMS, historians, and other enterprise systems.
• Experience with test automation for APIs, databases, MES, or SCADA applications.
• Knowledge of ISA-95, ISA-88, GAMP5, and Industry 4.0 standards.
• Experience with HA, failover, backup/restore, and DR testing.

Ideal Candidate Profile

The ideal candidate is not a traditional software QA engineer. We are looking for a Manufacturing QA / MES Validation professional who understands both the IT and OT environments.

The candidate should be comfortable working across:

PLC Kepware/OPC SCADA/Ignition MES Database SAP/ERP Reports & Analytics

Interested parties can share their resume at ([email removed]) along with below details.

Candidate Details Form

Full Name (as per official documents):

Primary Contact Number:

Alternate Contact Number:

Primary Email ID:

Alternate Email ID:

Current CTC:

Expected CTC:

Notice Period in Current Company:

Current Employment Status (Working / Not Working):

If not working, Last Working Date:

Are you available to join within 15–20 days? (Yes/No):

Current Location:

Preferred Location(s):

Highest Qualification:

Current Employer (Payroll Company):

All Previous Employers (Payroll Companies):

Are you currently holding any offer? (Yes/No):

Are you expecting any offer? (Yes/No):

Was PF deduction happening in all your past organizations? Please confirm (Yes/No):

Total Experience –

Experience in MES Testing -

Experience in Ignition / similar SCADA testing -

Experience in which PLC and how many years (Siemens / Rockwell / Schneider etc.)-

Experience in Industrial protocols (OPC-UA, MQTT, Modbus, Ethernet/IP ) -

Experience in PLC MES/SCADA connectivity -

Experience in SQL Testing/Database Testing -

Experience in Selenium -

Best Regards,
Shantpriya Chandra
Director & Head of Recruitment
Harel Consulting India Pvt. Ltd.
Connecting People and Opportunities

Email: [email removed]

Mobile No -[phone removed]

LinkedIn: linkedin.com/in/shantpriya
Website: www.harel-consulting.com

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