Automation Engineer

Yellow Ribbon; Singapore; On-site; SGD 42,000 - 66,000; Full time

Job summary

Yellow Ribbon in Singapore seeks an automation engineer to design, test and maintain PLC programs (Keyence, Siemens, Omron) for food processing equipment, and to create intuitive HMI interfaces for local operation.

You will specify electrical schematics, panel layouts, tune control loops, and integrate sensors, VFDs and IoT connectivity, while providing on-site commissioning, technical support and documentation.

Qualifications

• Hands-on PLC programming and industrial automation experience.
• Experience with sensors, field instruments and control panel design.
• Familiarity with Modbus, Profinet, Ethernet/IP, MQTT protocols.
• Ability to read electrical drawings using AutoCAD Electrical or EPLAN.
• Experience with IoT platforms or cloud services is a plus.

Responsibilities

• Develop, test and maintain PLC programs for food processing equipment.
• Design and configure HMI screens for local operation.
• Prepare electrical schematics, I/O lists and panel layouts; oversee panel assembly.
• Tune control loops to optimise processing performance and energy use.
• Specify, install and calibrate sensors and field instruments.
• Integrate VFDs, motors, heaters, valves and actuators with the control system.
• Maintain calibration records and instrument documentation.
• Implement IoT connectivity to stream machine data to the cloud.
• Lead FAT/SAT testing, on-site commissioning and remote troubleshooting.
• Provide technical support and training to service technicians and customers.
• Contribute to machine design and ensure compliance with Singapore standards and safety.
• Maintain manuals, wiring diagrams and change logs.

Skills

PLC programming

HMI design

Electrical schematics

Control panel design

PID tuning

IoT integration

VFDs & motors

Sensors

SCADA

AutoCAD Electrical

EPLAN

Python/C/C++

Industrial networking

Education

Electrical/Mechatronics degree

Diploma in engineering

Tools

AutoCAD Electrical

EPLAN

MQTT

Profinet

Ethernet/IP

SCADA software

Job description

PLC programming & control systems

• Develop, test and maintain PLC programs(e.g., Keyence, Siemens, Omron)forfood waste processing equipment
• Design and configure HMI screens for intuitive local operation
• Prepare electrical and control schematics, I/O lists and panel layouts; oversee control panel assembly and wiring
• Tune control loops (temperature, moisture, motor speed, dosing) to optimise processing performance and energy use

Sensors & instrumentation

• Specify, select, install and calibrate sensors and field instruments such as temperature, humidity, level, load cells/weight, pressure, gas/odour and flow
• Integrate VFDs, motors, heaters, valves and actuators with the control system
• Maintain calibration records and instrument documentation

IoT & remote monitoring

• Implement and improve IoT connectivity (e.g. 4G/LTE gateways, MQTT, Modbus RTU/TCP, OPC UA) to stream machine data to the cloud
• Work with software partners on dashboards, alarms and reporting for clients and our service team
• Use operating data to drive predictive maintenance, troubleshooting and product improvements
• Apply good cybersecurity practice to connected equipment

Commissioning, service & support

• Lead testing (FAT/SAT) and on-site commissioning of new installations
• Troubleshoot electrical, instrumentation and control faults on site and remotely
• Provide technical support and training to service technicians and customer operators

R&D & continuous improvement

• Contribute to the design of new machine models and upgrades to existing ones
• Ensure designs comply with relevant Singapore standards and safety requirements
• Maintain technical documentation: manuals, wiring diagrams, program backups and change logs

Requirements:

• Degree or Diploma in Electrical, Electronics, Mechatronics, Instrumentation & Control Engineering, or a related field
• At least 2–3 years of hands‑on experience in PLC programming and industrial automation (fresh graduates with strong project or internship experience are welcome to apply for a junior position)
• Practical experience with sensors, field instruments, VFDs and control panel design
• Familiarity with industrial communication protocols (Modbus, Profinet, Ethernet/IP, MQTT)
• Ability to read and produce electrical drawings using AutoCAD Electrical, EPLAN or similar
• Strong troubleshooting skills and comfort working both in the workshop and at customer sites
• Experience with IoT platforms or cloud services (e.g. AWS IoT, Azure IoT, Node-RED, ThingsBoard)
• Basic scripting or programming (Python, C/C++) for data handling or edge devices
• Experience with SCADA systems
• Background in environmental, waste, water treatment or process equipment
• Licensed Electrical Worker (LEW) qualification or relevant safety certifications
• Class 3 driving licence