Controls Engineer
Confirmed on the employer's own hiring board on Nov 7, 2026. First seen by Alion on Sep 8, 2026. Air Liquide scores B on the Alion truth index.
Location:
Morrisville, PA - ESMAir Liquide Electronics innovative electronic materials respond to increasingly challenging customer demands for improved mobility, connectivity, computing power and energy consumption. We offer ultra pure carrier gases, a wide range of specialty gases and advanced precursor molecules, enabling equipment for safe distribution, purification and on-line purity control. On site, manufacturers rely on our expertise in providing full management of these gases, advanced molecules and equipment and in helping to continuously improve production processes.
How will you CONTRIBUTE and GROW?
We are committed to building a diverse and inclusive workplace that embraces the unique perspectives of our employees, our customers, patients, community stakeholders, and cultures across the world. We believe that a variety of backgrounds makes our team stronger and more innovative.At Air Liquide, we RESPECT, HONOR and VALUE diversity.
Air Liquide is Hiring for a Controls Engineer in Morrisville, PA!
We are looking for you !
Pay: $120,000.00 - $130,000.00 per year
Comprehensive Family Benefits: Air Liquide offers a full benefits package designed to support your whole life, including Medical, Dental, Vision, Life, AD&D, and Disability Insurance.
Support for Parents: We offer up to 14-week paid child birth benefits to support growing families.
Future Security: 401(k) Retirement Plan with company match, Tuition Assistance, Paid Holidays, Vacation, and Sick time.
Early Access: Your benefits start day 1.
The Controls Engineer will be responsible for the design, implementation, and troubleshooting of automated industrial control systems at the Morrisville, PA site. We are looking for someone with a background in process automation of chemical plants using DCS, PLC, SCADA, as well as local control systems. The Controls Engineer will collaborate with a multi-disciplinary team to assist in all aspects of troubleshooting, programming, and installation of various controls systems. Improve and upgrade control system hardware and software to better integrate operations and collect/maintain process data.
Design, develop, and modify process control systems, including PLCs, SCADA, and HMI applications. Specify, procure, and troubleshoot instruments measuring pressure, temperature, flow, and level.
Create and update required instrumentation and control engineering documentation such as logic diagrams, electrical schematics, line diagrams, P&IDs, and control narratives.
Troubleshoot and resolve software and hardware malfunctions to support plant operations.
Foster alignment of all instrumentation and control system installations with company and industry standards and safety regulations (e.g., ISA, NEC, OSHA).
Oversee the installation, testing, and startup of new control system hardware, software, and instrumentation during plant modifications.
Skilled in troubleshooting control system hardware/software and implementing corrective actions with autonomy and team support.
Leads efforts to establish engineering design basis, and assists with design documentation (e.g. PFDs, PIDs, equipment and instrument specification sheets, interlock documentation, functional design specification) for both new and existing processes.
Experienced in guiding and assisting with loop and interlock testing for new and existing processes.
Actively participates in process Design Reviews and Process Hazards Analysis.
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Are you a MATCH?
Bachelor's degree in chemical, mechanical, or electrical engineering, or equivalent
3-5 years of relevant experience, including programming PLC/DCS and local controllers for chemical plant design, operation and process data collection
Knowledge of applicable codes and standards for process control hardware and software (UL listing, NEC, NFPA) as applied to hazardous materials handling and manufacture
Experience with Allen-Bradley hardware and software (Rockwell ControlLogix/Studio 5000, FactoryTalk)
Ability to develop and interpret electrical schematics such as line diagrams, instrument loop drawings, ladder logic
Experience with developing and deploying ethernet based industrial networks
Self-starter with the ability to perform well under pressure and continuously changing priorities
Problem solving and decision making skills
Excellent verbal and written communication skills
Team player with leadership abilities
Preferred:
Working knowledge of controls software including ANEVA PI Vision
Experience with Operational Technology (OT) cybersecurity
Familiarity with Process Safety Management (PSM) elements such as Process Hazards Analysis (PHA) and Management of Change (MOC)
Working knowledge of Layers of Protection Analysis (LOPA) and designing and implementing systems with appropriate SILs
Understanding of electrical distribution and power loading in industrial control systems
Working knowledge of data analysis tools (FMEA, Six Sigma, DOE, etc.) with the ability to use tools for the identification of process improvement opportunities.
Autocad proficiency
FE Certification or Professional Engineering (PE) license
Lean Six Sigma Green or Black Belt Certification
Chemical plant operation experience strongly preferred
Our Differences make our Performance
At Air Liquide, we are committed to build a diverse and inclusive workplace that embraces the diversity of our employees, our customers, patients, community stakeholders and cultures across the world.
We welcome and consider applications from all qualified applicants, regardless of their background. We strongly believe a diverse organization opens up opportunities for people to express their talent, both individually and collectively and it helps foster our ability to innovate by living our fundamentals, acting for our success and creating an engaging environment in a changing world.