PLC Programmer Automation Engineer (CODESYS Expert)

We are looking for a highly technical PLC Programmer / Automation Engineer with strong expertise in CODESYS-based development environments. The candidate must be experienced in IEC 61131-3 programming real-time control systems and industrial communication protocols with the ability to design scalable and modular automation architectures.
Key Responsibilities
- Develop test and maintain PLC applications using CODESYS V3.x platform
- Design software architecture using FB FBD ST LD and SFC
- Create reusable and modular CODESYS libraries and custom function blocks
- Implement OOP concepts (interfaces inheritance encapsulation)
- Configure task scheduling and real-time execution
- Perform I/O mapping and device configuration
- Debug using monitoring breakpoints and trace tools
- Manage version control and libraries
- Integrate systems via APIs and industrial protocols
- Support commissioning and troubleshooting
Required Skills & Technical Expertise
CODESYS (Mandatory):
- CODESYS V3.x
- Function Blocks Functions Programs
- Library creation and management
- GVL and persistent variables
- Pointers and memory handling
- State machine design
- CODESYS Visualization
- SoftPLC environments

Industrial Communication Protocols:
- Modbus RTU
- Modbus TCP/IP
- CAN Bus / CANopen
- OPC UA
- MQTT


Systems & Integration:
- Linux-based systems
- REST APIs (HTTP/HTTPS JSON/XML)
- TCP/IP sockets serial communication
- IoT and edge devices


Preferred Qualifications
- Industrial cybersecurity knowledge
- Docker (bonus)
- Real-time control and PID tuning
- Marine or yacht automation experience
Soft Skills
- Strong debugging skills
- Clean and modular coding practices
- Good documentation
- Team collaboration

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