Senior Contorls 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.

You will own projects from concept through commissioning, delivering reliable, scalable automation solutions for complex manufacturing needs. The role involves developing software for Allen-Bradley and Siemens PLCs, integrating vision systems, sensors, and motion control, and collaborating with cross-functional teams and

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.

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

Industrial automation

Diagnostics & testing

Team collaboration

Education

B.S. in Electrical Engineering or Mechatronics

Tools

RSLogix/Studio 5000

Siemens Step 7/TIA Portal

EtherNet/IP

TCP/IP

SPI/UART

Servo drives

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.