Industrial Automation Engineer — PLC & HMI Specialist

COA Network Inc; Hooksett (NH); On-site; USD 90,000 - 130,000; Full time

Job summary

COA Network Inc. seeks a hands-on Industrial Automation Engineer to design, program, integrate, troubleshoot, and commission PLC and HMI-based control systems across the full automation lifecycle.

You will work with Siemens STEP 7/STEP 5/WinCC and Rockwell RSLogix/RSView platforms, and engage directly with machinery, networks, field devices, and customers. The role requires practical automation experience, strong problem-solving, and the ability to travel to customer facilities as needed.

Qualifications

• Bachelor's degree in Electrical Engineering or related field.
• Hands-on automation and controls experience considered.
• Professional experience in industrial automation, controls engineering, or process control.
• Hands-on PLC programming experience.
• Experience with Siemens and/or Rockwell/Allen-Bradley PLCs.
• HMI development and configuration experience.
• Experience commissioning and troubleshooting industrial automation systems.

Responsibilities

• Design and develop industrial automation and control systems for machine-level and plant-wide applications.
• Develop, modify, test, and troubleshoot PLC programs.
• Develop and configure HMI applications.
• Work with Siemens platforms including STEP 7, STEP 5, and WinCC.
• Work with Rockwell/Allen-Bradley technologies including RSLogix, RSView SE, and RSView 32.
• Integrate PLC and HMI systems with sensors, drives, actuators, instrumentation, and other field devices.
• Configure and troubleshoot industrial communication networks.
• Support Ethernet/IP, Profibus, Profinet, Modbus, and related industrial protocols.
• Perform control-system testing, debugging, integration, and optimization.
• Support installation, commissioning, and equipment start-up at customer facilities.
• Troubleshoot PLC, HMI, electrical, communication, and field-device issues.
• Modify and optimize existing control systems.
• Review customer requirements and develop appropriate automation solutions.
• Read and interpret electrical schematics, P&IDs, and technical documentation.
• Develop and maintain clear project and controls documentation.
• Collaborate with project managers, engineers, technicians, customers, and other stakeholders.
• Provide ongoing technical support to customers and internal teams.
• Travel to customer locations as required.

Skills

PLC programming

HMI development

Industrial automation

Electrical schematics

Customer interaction

Education

Bachelor's degree in Electrical Engineering

Tools

Siemens STEP 7

Siemens STEP 5

WinCC

RSLogix

RSView SE

RSView 32

Job description

COA Network Inc. seeks a hands-on Industrial Automation Engineer to design, program, integrate, troubleshoot, and commission PLC and HMI-based control systems across the full automation lifecycle.

You will work with Siemens STEP 7/STEP 5/WinCC and Rockwell RSLogix/RSView platforms, and engage directly with machinery, networks, field devices, and customers. The role requires practical automation experience, strong problem-solving, and the ability to travel to customer facilities as needed.