Matheson TriGas

Controls Engineer - Irving, TX

Matheson TriGas • $120K — $150K *
Manufacturing & Automotive
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Engineering (Electrical, Chemical, Automation/Control Systems, Mechanical, or related) or 10 years equivalent experience.
  • 5 years of experience with a degree; 10 years without; specifically in control systems programming.
  • 1+ years hands-on with air separation units (ASUs) or similar processes preferred.
  • 1+ years in regulated environments with formal Management of Change (MOC) processes preferred.
  • Technical proficiency in multiple PLC platforms, and programming languages.

Responsibilities

  • Provide 24/7 technical support for control systems to minimize production downtime.
  • Execute daily PLC/SCADA programming updates in line with company standards.
  • Interpret and modify PLC wiring diagrams and P&IDs for safe plant operation.
  • Implement change management protocols, including risk assessments and documentation.
  • Maintain validated state of control systems through compliance with test plans.
  • Lead investigations into control system failures and ensure corrective actions are approved and implemented.
  • Monitor Operational Technology (OT) assets to ensure reliable system performance.

Benefits

  • Support for continuous learning and certification opportunities.
  • Dynamic work environment with the opportunity for field coverage.
  • Ability to contribute to high-impact, regulated projects.
  • Engagement in cross-functional collaboration for problem resolution.
  • Potential for remote work when needed.
Full Job Description
ControlsEngineer
JOB SUMMARY

We are seekinga 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 manufacturingenvironment. The ideal candidate blends solid technical proficiency inPLC/SCADA troubleshooting with a proactive approach to maintaining systemstability and operational safety. This role is based out of the Irving, TXoffice.

EssentialFunctions
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 forAll Jobs
Performs other duties as assigned
Complies with all policies and standards

QUALIFICATIONS

EducationBachelor'sdegree in Engineering from an ABET-accredited university (Electrical, Chemical,Automation/Control Systems, Mechanical, or closely related technicaldiscipline) OR 10 years of equivalent control systems engineering experience ispreferred

WorkExperience
5 years withdegree, 10 years without. Experience in control systems programming, industrialautomation, or operational technology within a continuous-process manufacturingenvironment is required
1+ yearshands-on experience working with air separation units (ASUs) or similar highlycontinuous cryogenic/chemical processes including compressors and distillationcolumns is preferred.
1+ yearsworking within strictly regulated manufacturing environments utilizing formalManagement 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.

PHYSICALDEMANDS/WORKING CONDITIONS
WorkingCondition: This role will be performedprimarily in an office environment, requiring extensive daily usage of acomputer, and other office equipment.
WorkingCondition: This role supports 24/7operations and requires occasional night and/or weekend remote support.
WorkingCondition: Field Coverage willpotentially occur wherever Matheson has a facility, and during any season.
PhysicalDemands: Occasionally lift and/or moveobjects up to 50 pounds.
PhysicalDemands: Specific vision abilitiesrequired include close vision, distance vision, depth perceptions, and theability to adjust focus.
WorkingCondition: This role will be performed inoffice environments as well as in industrial field environments. Whileperforming duties of this job it would occasionally be required to:
• Be exposed to moving mechanical partsand extreme cold (e.g. operating plant).
• Be exposed to outside weatherconditions (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)
WorkingCondition: May also be required to workfrom a home location, which must be conducive to performing the role andduties, including virtual/video meetings.
WorkingCondition: Must sign NDA, have a cleandriving record and pass background check and drug test.

TravelRequirements Estimated Amount Brief Description
25% PotentialField Coverage

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

About Matheson TriGas

Matheson TriGas is a leading supplier of industrial, medical, and specialty gases, as well as welding and safety supplies. The company was founded in 1927 and is headquartered in Basking Ridge, New Jersey. Matheson TriGas serves a wide range of industries, including healthcare, electronics, and manufacturing. The company's products are used in a variety of applications, such as welding, cutting, and brazing, as well as in medical procedures and laboratory research. Matheson TriGas is committed to sustainability and has implemented a number of initiatives to reduce its environmental impact, such as investing in renewable energy and reducing waste and emissions.
Learn more about Matheson TriGas
Size
10,000 employees
Industry
Founded
1926

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