Controls Engineer
Company websiteairliquide.com (Air Liquide, opens in new tab)
Base salary $120K to $130K
Employer-published annual base salary, USD. Advertised base range in Esm, PA +1 more
You apply on the employer's own site. Six Figure Work does not handle applications.
- LocationEsm, PA +1 more
- WorkplaceWorkplace not stated
- Status at last checkSource accepting applications when checked
- Last checked (9 min ago) · observed since
All places named
- Esm, PA
- Morrisville
About this job
Location:
Morrisville, PA - ESM

Air 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.
Source: Air Liquide on Workday · View original posting (opens in new tab)
Pay in context
This role's base floor ($120,000) is above 46% of the 41 Engineering (non-software) roles in North Carolina listed on this site; 2 others list the same floor. Their median floor is $120,000; the middle half runs from $114,400 to $136,907.
Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 6, 2026.
This listingControls Engineer$120K to $130K
Senior Controls Engineer$115K to $145K
Senior Reliability Engineer$125K to $135K
Scientist I$110K to $120K
Supplier Quality Control Specialist$110K to $140K
Senior Process Engineer$130K to $165K
Senior Electrical Engineer$130K to $165K
Chart as a table
| Role | Published base |
|---|---|
| Controls Engineer (this listing) | $120K - $130K |
| Senior Controls Engineer | $115K - $145K |
| Senior Reliability Engineer | $125K - $135K |
| Scientist I | $110K - $120K |
| Supplier Quality Control Specialist | $110K - $140K |
| Senior Process Engineer | $130K - $165K |
| Senior Electrical Engineer | $130K - $165K |
Observed changes
- First observed on the employer's board
- Began meeting the published-salary criteria
- Observed since
- Employer-stated posting date
- 2026-09-08
Where this pay comes from
Location as the employer wrote it: Morrisville, PA - ESM
Pay: $120,000.00 - $130,000.00 per year
- Method
- Employer text, read with fixed rules and re-verified
- Checked
- Rule set
- us-base-v2
The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.
What we verified
- The pay figures come from the employer's own listing, quoted exactly above.
- The pay is an annual base salary in US dollars with a minimum of at least $100,000.
- The role was publicly listed on the employer's job board when last checked.
We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.
