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

Requirements

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

please share your CV :

**walid.alsalti@sunreef.com **

Benefits

What We Offer:

·Competitive salary and benefits package

·Opportunity to work on innovative and sustainable projects

·Supportive and growth-oriented work environment

·Exposure to international standards and advanced technologies