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
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
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
Similar roles
Junior QA Engineer
AoFrio·New Zealand
Description Welcome to our World of Cold! At AoFrio, we are global leaders in providing IoT solutions to the food and beverage industry. Our innovative technology and dedicated team have positioned us at the forefront of our market. We are proud leaders in hardware-enabled Software as a Service (SaaS) for commercial refrigeration, with cutting-edge IoT solutions used by major brands…
- Full-time
- Skilled Migrant (Residence) — PR, points-based, no single employer
Software Engineer Specialist – Integration & AI
AIA Group·New Zealand
Your Role with Us As a Software Engineer Specialist – Integration in our Technology team, you’ll play a key role in designing and delivering integration solutions that keep our systems connected, secure, and running smoothly. You’ll collaborate with architects, engineers, and business stakeholders to build robust, scalable platforms that support both strategic initiatives and day-to-day operations. This is an exciting…
- Full-time
- Skilled Migrant (Residence) — PR, points-based, no single employer
Senior AI & Solutions Engineer
MaxAccelerate·Dubai, United Arab Emirates
SENIOR AI & SOLUTIONS ENGINEER AI • SALESFORCE • LLMS • INTELLIGENT CRM • FULL-STACK ENGINEERING BUILD THE FUTURE OF AI-POWERED ENTERPRISE SOLUTIONS We are looking for an exceptional Senior AI & Solutions Engineer to join our team and help us push the boundaries of what is possible with AI, Salesforce and next-generation CRM technology. This is not a traditional…
- Remote
- Full-time
- Green Visa — self-sponsored, no tie
Senior Web Developer (Shopify & Webflow?)
Sunstone Talent·Christchurch, New Zealand
An exciting sustainable green tech company is looking for a Senior Web Developer who has passion developing & delivering new features for leading edge products? Come join a great team with purpose? What you’ll bring: * BSc, BEng or BA or similar or not * 4 years+ of web development experience including Webflow & Shopify building & enhancing eCommerce websites…
- Full-time
- NZD 110k–NZD 130k / yr
- Skilled Migrant (Residence) — PR, points-based, no single employer
Software Engineer - Treasury Infrastructure
Wehrtyou·United States
<p>Hudson River Trading (HRT) is looking for a Senior Software Engineer to focus on our Treasury Infrastructure. Coders at HRT work on small, highly productive, and efficient teams that design, improve, and maintain the technology that powers worldwide trading — at HRT, the code you write is our business. You’ll have an opportunity to work closely with Treasury Quantitative Researchers…
- On-site
- Full-time
Software Engineer - Distributed Compute
Wehrtyou·United States
<p>Hudson River Trading (HRT) is one of the top algorithmic trading companies in the world. Our research cluster is the backbone of our success; it’s where all of our trading strategies are generated.</p> <p>We use a large, customized research environment with highly advanced CPU and GPU compute, storage, and networking technology. Our team thinks about the entire software stack, from…
- On-site
- Full-time
Software Engineer – C++
Wehrtyou·Austin, United States
<p>At Hudson River Trading (HRT), C++ is at the center of our live trading systems and research infrastructure. Our C++ engineers build the highly performant, fault-tolerant systems that power trading across global markets. HRT’s distributed system is on the Pareto frontier of latency and throughput, giving you limitless opportunity to leverage your deep knowledge of C++, OS internals, CPU architecture,…
- On-site
- Full-time
Fullstack Developer
Wehrtyou·Chicago, United States
<p>Fullstack Developers at HRT work either on our platform team (i.e. you work on infrastructure & tooling that supports all of our research & trading capabilities) or our acceleration team (i.e. you are aligned with a specific algo research & trading team). All of our Fullstack Developers have internal customers and deeply understand end-user needs. They build backend processes to…
- On-site
- Full-time
