Controls Engineer - Irving, TX

Controls Engineer
JOB SUMMARY
We are seeking a highly skilled Controls Engineer to support the automation, daily operations, and control systems maintenance across our air separation plants. In this role, you will diagnose technical issues, optimize system uptime, and implement safe, compliant logic modifications within a continuous-process manufacturing environment. The ideal candidate blends solid technical proficiency in PLC/SCADA troubleshooting with a proactive approach to maintaining system stability and operational safety. This role is based out of the Irving, TX office.

Essential Functions
Support 24/7/365 continuous plant operations by providing timely technical assistance for control system needs, rapidly troubleshooting logic/hardware anomalies to minimize production downtime.
Execute day-to-day plant PLC/SCADA programming updates and logic modifications in strict adherence to company-wide coding standards and documentation practices.
Effectively interpret and modify PLC wiring diagrams, P&IDs, control narratives, and logic diagrams to support the safe automation of plant operations.
Follow strict Management of Change (MOC) protocols for all local control system modifications, completing detailed risk assessments and documentation prior to deployment.
Help maintain the validated state of plant control systems by executing standard test plans and ensuring all logic changes comply with medical product manufacturing regulations.
Lead local root-cause investigations into control system failures or operational anomalies, implementing approved corrective and preventive actions (CAPAs).
Monitor local plant Operational Technology (OT) assets, ensuring high availability of SCADA terminals, reliable data historization, and adherence to basic cybersecurity procedures.
Collaborate cross-functionally with plant operations, safety, quality, and corporate engineering teams to resolve operational issues and sustain smooth production.

Required for All Jobs
Performs other duties as assigned
Complies with all policies and standards

QUALIFICATIONS

Education
Bachelor’s degree in Engineering from an ABET-accredited university (Electrical, Chemical, Automation/Control Systems, Mechanical, or closely related technical discipline) OR 10 years of equivalent control systems engineering experience is preferred

Work Experience
5 years with degree, 10 years without. Experience in control systems programming, industrial automation, or operational technology within a continuous-process manufacturing environment is required

1+ years hands-on experience working with air separation units (ASUs) or similar highly continuous cryogenic/chemical processes including compressors and distillation columns is preferred.

1+ years working within strictly regulated manufacturing environments utilizing formal Management of Change (MOC) or validated control protocols (FDA/medical-grade) is preferred.

Knowledge, Skills and Abilities
Technical proficiency in multiple PLC platforms, including Siemens SIMATIC S7, SIMATIC S5/CTI, and Allen-Bradley.
Experience developing PLC logic in multiple languages, including ladder logic, structured text, and VBScript.
Solid understanding of multiple HMI/visualization platforms including Inductive Automation/Ignition, Siemens WinCC, and SIMATIC HMI.
Familiarity with networking and communication protocols including OPC UA, MODBUS RTU/TCP, PROFINET, and others.
Practical knowledge of Management of Change (MOC) processes and rigid change-control frameworks within strictly regulated manufacturing environments.
Basic understanding of control system validation protocols (IQ/OQ/PQ) required to maintain a validated state for software, hardware, and logic modifications.
Familiarity with ASU-specific equipment like turbo-expanders, cryogenic pumps, and adsorption pretreatment units.
Strong technical and analytical proficiency with the ability to multi-task effectively, communicate clearly, and thrive in a team environment.

PHYSICAL DEMANDS/WORKING CONDITIONS
Working Condition: This role will be performed primarily in an office environment, requiring extensive daily usage of a computer, and other office equipment.

Working Condition: This role supports 24/7 operations and requires occasional night and/or weekend remote support.

Working Condition: Field Coverage will potentially occur wherever Matheson has a facility, and during any season.
Physical Demands: Occasionally lift and/or move objects up to 50 pounds.
Physical Demands: Specific vision abilities required include close vision, distance vision, depth perceptions, and the ability to adjust focus.
Working Condition: This role will be performed in office environments as well as in industrial field environments. While performing duties of this job it would occasionally be required to:

• Be exposed to moving mechanical parts and extreme cold (e.g. operating plant).
• Be exposed to outside weather conditions (e.g. cold box valves, filling trailers).
• Be exposed to high, precarious places (e.g. cold box, repair work)
• Be exposed to high noise levels (e.g. Plant rounds, maintenance)

Working Condition: May also be required to work from a home location, which must be conducive to performing the role and duties, including virtual/video meetings.
Working Condition: Must sign NDA, have a clean driving record and pass background check and drug test.

Travel Requirements Estimated Amount****Brief Description
25% Potential Field Coverage

Pay range $120,000 to $150,000 annually + eligible to participate in bonus plan

The Company is an Equal Opportunity Employer that complies with the laws and regulations set forth under EEOC. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. EOE AA M/F/VET/Disability