Controls Engineer PLC / HMI

AgUpdate; Baltimore (MD); On-site; USD 65,000 - 108,000; Full time

Benefits offered by this job

Medical/dental/vision insurance

Paid time off

401(k) with employer match

Life insurance

Employee assistance

Training opportunities

Job summary

Colmac Coil is seeking a Controls Engineer to design PLC-based controls for heat transfer products, combining electrical schematic work with hands-on assembly support, testing and troubleshooting. Responsibilities vary by experience level and include leading design efforts as needed.

The position requires a BS in engineering or related 2-year degree with manufacturing experience, and offers benefits including health insurance, PTO, 401(k) with match, and life insurance.

Qualifications

• Basic PLC programming knowledge and ladder logic.
• Ability to read electrical schematics and control circuits.
• Familiarity with PID/temperature/pressure control is a plus.

Responsibilities

• Develop and maintain electrical schematics, wiring diagrams, panel layouts, component lists, and PLC/HMI programs.
• Define operating sequences, I/O requirements, alarms, and interlocks; select/configure PLCs, VFDs, actuators, sensors.
• Support wiring and panel assembly; troubleshoot issues with production teams.
• Perform functional testing of I/O, sequences, HMIs, alarms, and interlocks before shipment.
• Maintain drawings, program backups, revision records, and docs; support field startup.

Skills

PLC programming

Ladder logic

HMI operation

Allen-Bradley CompactLogix

Electrical schematics

CAD fundamentals

Troubleshooting

Documentation

Education

BS in Mechanical, Manufacturing, or Electrical Engineering

Related 2-year degree with manufacturing experience

Tools

CAD software

Electrical design tools

Job description

Job Title: Oe CONTROLS ~~. ENGINEER“

PLC / HMI

Experience Level: Entry Level (0-2 Years), Mid Level (3-6 Years), or Senior Level (7+ Years)

Colmac Coil is seeking a Controls Engineer to develop PLC-based controls for the heat transfer products we manufacture and sell. The role combines desk work designing electrical schematics and PLC/HMI programs with hands‑on product assembly support, testing, and troubleshooting. Responsibilities reflect experience level.

• medical/dental/vision insurance
• paid time off
• 401(k) with employer match
• life insurance
• employee assistance
• training opportunities

Responsibilities Include:

• Develop and maintain electrical schematics, wiring diagrams, panel layouts, component lists, and PLC/HMI programs for new and existing products.
• Define operating sequences, I/O requirements, alarms, and protective interlocks with engineering. Select and configure PLCs, VFDs, actuators, sensors, and related components.
• Support product wiring and panel assembly. Troubleshoot electrical and programming issues with assembly and testing personnel.
• Perform and document functional testing of I/O, operating sequences, HMI unctions, alarms, and interlocks before shipment.
• Maintain drawings, program backups, revision records, and operating and troubleshooting documentation. Support field service with product startup and controls issues.
• Apply applicable electrical standards, product requirements, and safe work practices, Other controls engineering duties as assigned.
• Based on experience, the role may include leading controls design, setting programming standards, and mentoring team members.

Required Education

• + BS degree in Mechanical, Manufacturing, or Electrical Engineering is preferred.
• «A related 2-year degree with demonstrated manufacturing experience will be considered.

Knowledge, Skills & Abilities:

• + Basic knowledge of PLC programming, ladder logic, and HMI operation through coursework, projects, internships, or work experience. Allen-Bradley CompactLogix experience is preferred.
• + Ability to read electrical schematics and understand control circuits, relays, digital/analog signals, and control devices. CAD fundamentals and ability to learn electrical design tools.
• + Ability to troubleshoot systematically using schematics, PLC diagnostics, and test instruments, and follow electrical and plant safety procedures.
• + Ability to document technical changes and test results accurately, communicate with engineering and plant personnel, and organize work to meet deadlines.
• + Familiarity with PID control, temperature/pressure control, and industrial communications is preferred. HVAC or refrigeration experience is a plus.

Salary Range: - $64,681 - $107,811 annually

Physical Demands: (S=Seldom 0-10%, O=Occasional 11-33%, F=Frequent 34-66%, C=Constant 67-100%)

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job with or without reasonable accommodations. Stand/walk (O), sit (F), bend/stoop (O), perform work from ladder (S), climb stairs (S), twist (O), squat/kneel (S), crawl (S), reach (O), work above shoulders (S), grasp (O), fine manipulation (F), operate foot controls (S), lift/carry/push/pull up to 50# (S) vibratory tasks (S), wrist (flexion/ extension) (O). Indoor work environment, occasional outdoor duties, occasional high noise levels.

Midwest Division 350 Baltimore Dr - Paxton IL 60957 - USA Tel [phone] - Fax [phone] Manufacturing Inc. www.colmaccoil.com