Senior Ignition SCADA Systems Engineer

Nexus Circular is the commercial leader in advanced recycling technology that converts landfill-bound plastics into circular feedstocksfor the production ofsustainable virgin plastics for packaging and other applications. Nexus Circulars end-to-end solution is economicallyvalidatedas demonstrated by consistent bulk sales of high quality ISCC Plus circular feedstocks for virgin plastic production. Aligned with global partners who seek proven scalable solutions to meet ambitious plastic circularity goals Nexus Circular is rapidly expanding its innovation footprint worldwide moving decisively to address the complex challenges of plastics accumulation in the environment.

Nexus Circular is seeking a senior Operational Technology professional with deep hands-on experience administering stabilizing and scaling Inductive Automation Ignition environments in uptime-sensitive industrial operations.

This role will serve as a subject matter expert for Ignition SCADA reliability historian performance and OT data integrity. The successful candidate will help reduce key-person risk improve historian and data-logging stability strengthen OT support practices and establish repeatable Ignition platform standards for McDonough and future Nexus Circular sites.

Ideal Candidate Profile

The ideal candidate has personally owned and improved Ignition environments in live production settings. They are comfortable troubleshooting complex SCADA historian and OT data issues but they can also step back and build standards documentation and support practices that make the platform more reliable and repeatable over time.

This person should be hands-on structured collaborative and comfortable working in environments where uptime operator visibility and data reliability are critical.

Primary Responsibilities

Ignition Platform Ownership

• Own the health administration support and continuous improvement of Ignition environments across production and non-production systems.
• Manage Ignition gateway configuration module health backup and restore readiness redundancy strategy performance tuning and upgrade planning.
• Design and maintain standards for tag models UDT structures alarming historian configuration project organization scripting and release discipline.
• Support both Vision and Perspective applications where applicable with a focus on operator clarity diagnostics maintainability and long-term supportability.
• Establish change-control testing rollback and production validation practices for Ignition changes.
• Follow best practices for developing scalable maintainable and intelligent UDT structures within Ignition.
• Provide technical guidance and knowledge transfer to internal teams on Ignition architecture support procedures troubleshooting methods and platform standards.

SCADA Historian and OT Data Reliability

• Improve the reliability of historian logging store-and-forward behavior tag history data retention and time-series data quality.
• Troubleshoot issues related to Ignition gateways PLC connectivity HMIs alarms historian performance and OT data flows.
• Support root-cause analysis and incident response for Ignition SCADA historian and OT platform issues.
• Help define and maintain data reliability standards for production reporting alerting event streaming and future analytics use cases.

Plant Integration Support and Standardization

• Work closely with OT Engineering Operations Data IT and external vendors to support commissioning startup troubleshooting and ongoing plant operations.
• Support integration with PLCs HMIs industrial devices SQL databases and other plant systems.
• Help define a repeatable OT platform model that can be applied at McDonough and future Nexus Circular sites.
• Create and maintain architecture diagrams support runbooks backup procedures recovery documentation known-failure scenarios naming standards and knowledge-transfer materials.
• Support OT Windows Server infrastructure related to Ignition and plant systems including backup validation patching coordination recovery planning and production support standards.

Required Qualifications

• 5 years of experience in OT industrial automation SCADA or plant systems support with senior-level ownership of production environments.
• 3 years of direct hands-on experience administering and troubleshooting Inductive Automation Ignition in live industrial operations.
• Demonstrated expertise with Ignition gateway administration tags UDTs alarming Tag Historian store-and-forward backups redundancy scripting and upgrade planning.
• Strong experience with historian design or administration OT data logging data retention strategy and time-series data reliability.
• Experience supporting OT Windows Server infrastructure backup and restore validation patching discipline and production support practices.
• Strong troubleshooting documentation root-cause analysis incident response and cross-functional communication skills.
• Ability to work effectively with Operations Engineering OT IT Data and external vendors in a production-focused environment.

Preferred Qualifications

• Ignition certification or equivalent expert-level Ignition experience.
• Experience supporting Ignition SCADA systems in industrial production or continuous-process environments.
• Hands-on experience with Vision Perspective SQL databases scripting Ignition API usage alarm configuration and performance troubleshooting.
• Experience in oil chemicals energy recycling industrial processing manufacturing or other continuous-process environments.
• Experience with Siemens Rockwell Phoenix Contact Unitronics or similar industrial control platforms.
• Experience supporting multi-site OT environments standardized templates plant replication or commissioning of new facilities.
• Experience integrating OT data into reporting alerting event streaming cloud analytics or business intelligence platforms.
• Experience creating OT support runbooks historian standards naming standards architecture documentation and knowledge-transfer materials.
• Working knowledge of OT segmentation remote access governance firewalls and industrial cybersecurity practices.
• Exposure to licensing intellectual property protection OT architecture standardization or future-state plant replication models.