Senior Controls Engineer

Liberty Personnel Services, Inc.; Dalton (GA); On-site; USD 120,000 - 150,000; Full time

Job summary

Liberty Personnel Services, Inc. is seeking a Senior Controls Engineer to design and implement PLC, HMI, and robotic control systems for custom industrial automation equipment in the Chattanooga area.

You will own projects from concept through commissioning. The ideal candidate has a BS in Electrical Engineering or Mechatronics and hands-on experience with Allen-Bradley RSLogix/Studio 5000 and Siemens Step 7/TIA Portal, plus ladder logic and structured text.

Qualifications

• B.S. in Electrical Engineering, Mechatronics, or related field required.
• Industrial PLC programming and control systems integration experience.
• Strong knowledge of Structured Text, Ladder Logic, servo systems, VFDs, and machine safety.
• Experience with industrial communications such as TCP/IP, EtherNet/IP, SPI, or UART.

Responsibilities

• Develop PLC and HMI control systems for custom automation and robotic platforms.
• Program Allen-Bradley (RSLogix/Studio 5000) and Siemens (Step 7/TIA Portal) PLCs.
• Develop software using Ladder Logic, Function Block, and Structured Text.
• Integrate robotics, vision systems, sensors, servo drives, and motion control.
• Connect sensors, microcontrollers, drives, HMIs, and industrial communication networks.
• Lead R&D projects involving software, electronics, and mechanical systems.
• Develop diagnostic tools and testing methods to improve system performance.
• Work with engineering, manufacturing, and outside vendors to deliver projects.

Skills

PLC programming

HMI development

Robotics integration

Motion control

Troubleshooting

Education

B.S. in Electrical Engineering or Mechatronics

Tools

RSLogix/Studio 5000

Step 7/TIA Portal

Ladder Logic

Structured Text

EtherNet/IP

Job description

Senior Controls Engineer - PLCs, HMI, VFDs
On-site | Chattanooga, TN Area
Full-time | Permanent | $120,000-$150,000 + Bonus

Technology-driven manufacturer seeking a Senior Controls Engineer to design and implement advanced PLC, HMI, and robotic control systems for custom industrial automation equipment. You'll own projects from concept through commissioning, developing reliable, scalable automation solutions for complex manufacturing applications.

Responsibilities

• Develop PLC and HMI control systems for custom automation and robotic platforms.
• Program Allen-Bradley (RSLogix/Studio 5000) and Siemens (Step 7/TIA Portal) PLCs.
• Develop software using Ladder Logic, Function Block, and Structured Text.
• Integrate robotics, vision systems, sensors, servo drives, and motion control.
• Connect sensors, microcontrollers, drives, HMIs, and industrial communication networks.
• Lead R&D projects involving software, electronics, and mechanical systems.
• Develop diagnostic tools and testing methods to improve system performance.
• Work with engineering, manufacturing, and outside vendors to deliver projects.

Qualifications

• B.S. in Electrical Engineering, Mechatronics, or related field.
• Industrial PLC programming and control systems integration experience.
• Strong knowledge of Structured Text, Ladder Logic, servo systems, VFDs, and machine safety.
• Experience with industrial communications such as TCP/IP, EtherNet/IP, SPI, or UART.
• Strong troubleshooting and problem-solving skills.

Preferred

• Robotics integration.
• STM32, Arduino, or similar microcontrollers.
• Motion control and precision automation.