Automation Controls Engineer II PLC/HMI & Vision

3MD Inc.; Washington (District of Columbia); On-site; USD 85,000 - 120,000; Full time

Job summary

3MD Inc. in Washington, DC, is seeking a Controls Engineer II to design and program PLC/HMI/SCADA changes for small to mid-sized automation projects.

You will troubleshoot complex equipment issues, update documentation, and support commissioning and system updates while ensuring safety and cybersecurity standards. The role emphasizes mentoring other engineers and technicians, collaborating across operations and engineering teams, and working with machine vision as part of the business.

Qualifications

• Bachelor’s Degree and 3-5 years of experience in controls.
• Proficiency in PLC/HMI programming (Rockwell, Siemens or similar).
• Experience with VFDs, servo systems, industrial Ethernet, instrumentation.

Responsibilities

• Design, program, and implement PLC/HMI/SCADA changes for small-mid projects.
• Troubleshoot automation and instrumentation issues and perform root-cause analysis.
• Develop and update control documentation and support commissioning and FAT/SAT.

Skills

PLC & HMI programming

Rockwell/Siemens

Troubleshooting

Documentation

Electrical panel builds

Team mentoring

Education

Bachelor’s Degree

Tools

SCADA systems

Rockwell/Siemens software

Industrial Ethernet

Job description

3MD Inc. in Washington, DC, is seeking a Controls Engineer II to design and program PLC/HMI/SCADA changes for small to mid-sized automation projects.

You will troubleshoot complex equipment issues, update documentation, and support commissioning and system updates while ensuring safety and cybersecurity standards. The role emphasizes mentoring other engineers and technicians, collaborating across operations and engineering teams, and working with machine vision as part of the business.