PLC & HMI Controls Engineer – Industrial Automation

SQA Group; Lowell (MA); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

Relocation assistance

Long-term consulting

Job summary

SQA Group is seeking a hands-on OT Software Developer / PLC Controls Engineer to design, develop, test, and improve PLC and HMI applications for industrial equipment in an R&D environment.

The ideal candidate enjoys writing code, solving technical challenges, and building reliable, reusable software solutions, with hands-on experience in PLC programming and SCADA/HMI systems. Relocation to the Greater Boston area is welcome for the right candidate.

Qualifications

• 4–6+ years of hands-on PLC programming and OT software development.
• Experience with PLC design, development, and testing for industrial automation.
• Familiarity with SCADA/HMI platforms and integrating with PLCs.

Responsibilities

• Design, develop, test, and enhance PLC-based industrial control software.
• Develop and configure SCADA/HMI applications using platforms such as Siemens WinCC, Ignition, AVEVA, Rockwell FactoryTalk, or similar technologies.
• Build modular, reusable software components to support industrial equipment and product development.
• Integrate PLC, HMI, and other industrial systems using communication protocols such as OPC DA/UA, Modbus, Ethernet/IP, or similar technologies.
• Collaborate with hardware engineers and testers to integrate, troubleshoot, and validate software functionality on physical equipment in an R&D lab environment.
• Participate in Agile/Scrum development activities, including sprint planning, reviews, and retrospectives, while working closely with the Product Owner and development team.
• Independently troubleshoot, debug, and optimize PLC/HMI applications, with an emphasis on new functionality, product enhancements, and continuous improvement.
• Contribute to technical documentation, software design, and validation activities as appropriate.

Skills

PLC programming

SCADA/HMI development

Structured Text

Ladder Logic

FBD

OPC/Modbus/Ethernet/IP

GxP validation knowledge

Agile/Scrum

Team collaboration

Tools

Siemens TIA Portal

Siemens WinCC

Rockwell/Allen-Bradley

CODESYS

Ignition

AVEVA

FactoryTalk

OPC UA/DA

Job description

SQA Group is seeking a hands-on OT Software Developer / PLC Controls Engineer to design, develop, test, and improve PLC and HMI applications for industrial equipment in an R&D environment.

The ideal candidate enjoys writing code, solving technical challenges, and building reliable, reusable software solutions, with hands-on experience in PLC programming and SCADA/HMI systems. Relocation to the Greater Boston area is welcome for the right candidate.