Controls Software Engineer II - Industrial Automation

Milacron, LLC; Batavia Township (OH); Hybrid; USD 80,000 - 110,000; Full time

Job summary

Milacron, LLC, located in Batavia, OH, seeks a Controls Software Engineer to develop and test control system software for injection molding and extrusion equipment. You will design and maintain features on existing control platforms, including web front-ends and legacy Qt-based systems.

The role requires hands-on experience with PLCs, HMI development, and industrial network protocols, plus collaborative work in a global engineering team. Training and mentoring are part of the growth path.

Qualifications

• 3+ years of experience developing software for industrial automation, machine controls, embedded systems, or related applications.
• Proficiency in C, C#, Python, and JavaScript, including software design, debugging, testing, and maintenance of production systems.
• PLC programming experience using IEC 61131-3 languages, including Structured Text and Function Block Diagram.
• Experience developing HMI applications and machine control software for industrial equipment.
• Experience with scripting and automation languages such as Python, PowerShell, and Bash to support development, testing, deployment, and engineering workflows.
• Experience using Azure DevOps, Git, and modern source control practices, including branching strategies, pull requests, CI/CD pipelines, and Agile development methodologies.
• Experience with industrial communication protocols including EtherNet/IP, EtherCAT, PROFINET, Modbus TCP/RTU, OPC UA, MQTT, and serial communications.
• Experience designing, configuring, and troubleshooting industrial networks and communication protocols, including integration of drives, HMIs, PLCs, I/O systems, robots, and third-party devices.
• Experience integrating third-party devices, controls, and software solutions from external vendors, OEMs, and system integrators.
• Experience collaborating within cross-functional and global engineering teams to develop and maintain commercial software products.

Responsibilities

• Develop and test control system software for injection molding and plastic extrusion machinery.
• Design, implement, and maintain new features on existing control platforms.
• Develop web-based front-end applications using JavaScript, C#, and HTML.
• Support and enhance legacy software systems utilizing Qt.
• Develop backend machine control software in PLC environments using Structured Text and/or C++.
• Monitor and control machine functionality through HMI and PLC components.
• Follow established software architecture standards and coding style guidelines.
• Collaborate with a global team of developers to support product development initiatives.
• Learn and apply industry knowledge related to injection molding and extrusion equipment.
• Participate in training, mentoring, and ongoing technical development activities.

Skills

C/C++

Python

JavaScript

C#

Structured Text

HMI development

PLC programming

Industrial protocols

Azure DevOps

Git

TwinCAT 3

B&R Automation Studio

Qt

Tools

Azure DevOps

Git

TwinCAT 3

Qt

HMI tools

Job description

Milacron, LLC, located in Batavia, OH, seeks a Controls Software Engineer to develop and test control system software for injection molding and extrusion equipment. You will design and maintain features on existing control platforms, including web front-ends and legacy Qt-based systems.

The role requires hands-on experience with PLCs, HMI development, and industrial network protocols, plus collaborative work in a global engineering team. Training and mentoring are part of the growth path.