Controls Engineer (3+ yrs PLC/HMI programming, industrial control systems exp. req.)

#twiceasnice Recruiting; Mesquite (TX); On-site; USD 100,000 - 115,000; Full time

Benefits offered by this job

Medical

Dental

Vision

Life Insurance

Holidays

PTO

Job summary

Controls Engineer near Mesquite, TX is sought to design, program, test, and commission PLC/HMI systems powering liquid cooling equipment, from schematics to shop-floor testing.

The role requires 3+ years PLC/HMI programming and fluid system experience, with VFDs and instrumentation; travel up to 10% and on-site duties.

Qualifications

• Bachelor's degree in engineering or equivalent required.
• 3+ years of PLC/HMI programming in industrial control systems.
• Experience with VFDs and process instrumentation (flow, pressure, temp).
• Hydronic/fluid systems or liquid cooling experience preferred.
• Solid understanding of electrical schematics, panel layouts, NEC wiring.
• Willingness to travel 5–10% domestically.

Responsibilities

• Develop, modify and debug PLC/HMI programs for liquid cooling equipment.
• Implement control algorithms and ladder logic or CODESYS.
• Modify software for new products, features, and upgrades.
• Support PLC migrations, communications upgrades, and new features.
• Review electrical schematics and panel layouts; ensure proper wiring.
• Provide remote support and occasional customer-site commissioning.
• Maintain documentation and assist in factory acceptance testing.

Skills

PLC programming

HMI programming

Industrial control systems

Electrical schematics

VFDs

Instrumentation

Education

Bachelor's degree in engineering

Tools

CODESYS

Electrical test equipment

Job description

Controls Engineer (3+ yrs PLC/HMI programming, industrial control systems exp. req.)

Location: near Mesquite, TX (east side of Dallas)

Salary: $100,000–$115,000 + Profit Sharing + Benefits

Benefits: Medical, Dental, Vision, Life, Holidays, PTO

Job Type: Full-Time | On-site

Typical Hours: Monday–Friday, ~40 hours/week

Travel: up to 10% domestic travel; average trip length is 2-4-days

Start Date: ASAP

Sponsorship is not available

Controls Engineer (3+ yrs PLC/HMI programming, industrial control systems exp. req.) Description

Our client in the data center cooling industry is looking for a Controls Engineer to join their team near Mesquite, TX. You will program, test, and commission the electrical and control systems that power liquid cooling equipment, including PLCs, HMIs, VFDs, and instrumentation. You will support the full product lifecycle, from electrical schematics and panel design through shop-floor testing, troubleshooting, and occasional customer-site commissioning. Most projects begin with an established logic base, but you will gradually take ownership of software revisions, control algorithms, interfaces, and new product features in an engineered-to-order manufacturing environment. You will initially work alongside a senior controls engineer before assuming greater responsibility for the controls platform. To be considered, you must have controls engineering experience involving fluid systems, PLC/HMI programming, VFDs, instrumentation, electrical schematics,

and hands-on troubleshooting. This is an opportunity to help shape products supporting AI and high-density computing while working with a collaborative, hands-on engineering team.

Responsibilities

• Develop, modify and debug PLC/HMI programs for liquid cooling equipment
• Implement control algorithms using ladder logic or CODESYS
• Modify software for new products, features, and equipment upgrades
• Support PLC migrations, communications upgrades, and new control features
• Review electrical schematics, one-line diagrams, and panel layouts
• Work with VFDs, pumps, valves, sensors, and process control instrumentation
• Perform functional testing, verify I/O, and evaluate operating sequences
• Troubleshoot electrical, mechanical, instrumentation, and logic issues
• Maintain software, drawings, redlines, and as-built documentation
• Support panel wiring, energized testing, and factory acceptance tests
• Provide remote support and occasional customer-site commissioning
• Follow lockout/tagout procedures when working around energized equipment

Qualifications

• Bachelor's degree in engineering or equivalent experience required
• 3+ years of programming PLC/HMI industrial control systems experience required
• Experience with VFDs and process instrumentation (flow, pressure, temperature) required
• Hydronic/fluid systems, process skid, HVAC, or liquid cooling experience required
• Solid understanding of electrical schematics, panel layout, and NEC-compliant wiring required
• Hands-on electrical testing and troubleshooting experience required
• Willingness and ability to travel 5–10% domestically required