Controls Software Engineer
IMS People
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Job summary
IMS People is seeking a Controls Software Engineer to support a next-generation material handling controls platform in a large-scale robotics and automation environment. You will develop reusable controls software using ST and IEC 61131-3, with CODESYS V3 or TwinCAT, on Linux-based industrial PCs, and collaborate across controls, software, electrical, and automation teams.
The role emphasizes greenfield development, state-machine architecture, debugging, and deployment of controls applications,
Qualifications
- Experience with IEC 61131-3 Structured Text
- Experience with CODESYS V3 or TwinCAT environments
- Strong PLC/control software development background
- Linux experience in industrial/embedded controls environments
- Familiarity with Git workflows and code reviews
- Knowledge of object-oriented programming concepts
- Experience designing state machines and fault-handling logic
- Ability to develop reusable/modular control software
- Strong debugging and problem-solving skills
- Ability to troubleshoot hardware-software system interactions
Responsibilities
- Develop PLC/control software using IEC 61131-3 Structured Text.
- Create CODESYS V3 function blocks and reusable control components.
- Apply object-oriented programming concepts including interfaces, methods, and encapsulation.
- Design control logic using state machines with clear transitions and fault handling.
- Develop modular components reusable across material-handling systems.
- Work with Linux-based industrial PCs and controls environments.
- Use Git for source control, reviews, and collaboration.
- Debug and troubleshoot controls applications and determine root causes.
- Configure and test controls apps from electrical drawings and system requirements.
- Write and review technical requirements before development.
- Test software on hardware and address issues found during testing.
- Collaborate with controls, software, electrical, and automation engineers.
Skills
Tools
Job description
Job Description
Location: Atlanta, GA / Seattle, WA /
Travel: Required travel to Seattle, WA for lab and hardware testing
Experience: 7+ years preferred
We are looking for a Controls Software Engineer to support a next-generation material handling controls platform for a large-scale robotics and automation environment.
The engineer will develop and maintain reusable controls software using CODESYS or TwinCAT, IEC 61131-3 Structured Text, Linux-based industrial PCs, Git, and object-oriented programming concepts.
This is a software-focused controls role involving greenfield development, reusable control components, state-machine architecture, debugging, testing, and deployment of controls applications.
- Develop PLC/control software using IEC 61131-3 Structured Text (ST).
- Develop CODESYS V3 function blocks and reusable control components.
- Apply object-oriented programming concepts including interfaces, methods, properties, encapsulation, and reusable software architecture.
- Design control logic using state machines with clear transitions, fault handling, recovery, start/stop, and emergency-stop behavior.
- Develop modular software components that can be reused across multiple material-handling systems.
- Work with Linux-based industrial PCs and controls environments.
- Use Git for source control, branching, code reviews, and collaborative software development.
- Debug and troubleshoot controls applications and determine the root cause of software/hardware behavior.
- Configure and test controls applications based on electrical drawings and system requirements.
- Write and review technical requirements before beginning development.
- Test software on physical automation hardware and troubleshoot issues identified during testing.
- Collaborate with controls, software, electrical, and automation engineers through code reviews and technical discussions.
- Support deployment activities and provide troubleshooting assistance as systems are brought online.
- Strong hands-on experience with Structured Text (ST).
- CODESYS experience OR strong TwinCAT experience.
- Strong PLC/control software development background.
- Experience with Linux in an industrial, embedded, automation, or controls environment.
- Experience using Git and software-development practices such as code reviews and version control.
- Strong understanding of object-oriented programming concepts.
- Experience designing state machines and fault-handling logic.
- Experience developing reusable/modular controls software.
- Strong debugging and problem-solving skills.
- Ability to work with hardware and software together and troubleshoot system-level issues.
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