Editorial summary

The company is seeking a .NET Developer on a contract basis to support PLC integration and develop Windows desktop applications using C#, WPF, and MVVM. The role involves connecting to industrial PLC platforms such as Mitsubishi, Omron, Siemens, and Beckhoff, and mapping PLC data to application interfaces. Key requirements include experience with PLC communication, industrial automation, and desktop application development. The position offers a salary of 6,000.

This summary is AI-generated and may contain inaccuracies. Please refer to the full job description below.

Job description

[This job id 14516 first appeared in Job-Q.com on 15 Jun 2026]

We are hiring under Recruit Express headcount, and the details of this position are:

Job title: .NET Developer (Contract, PLC integration, C#, MVVM, WPF, Central)

Responsibilities

• Develop and maintain Windows desktop applications using C#, .NET, WPF and MVVM.
• Develop communication modules to read and write data from industrial PLCs.
• Connect to PLC platforms such as Mitsubishi, Omron, Siemens and Beckhoff.
• Map PLC registers, tags and data points to application objects and user interfaces.
• Retrieve machine status, alarms, production counts, recipes and process parameters from PLCs.
• Write commands, parameters or control values to PLCs where required and authorized.
• Implement reliable polling, event handling, reconnection, timeout and communication error recovery.
• Integrate PLC data with databases, MES, EAP, SCADA or other factory systems.
• Develop equipment monitoring applications using PLCs, sensors and industrial devices.
• Review existing PLC programs to locate relevant registers, tags and machine signals.
• Troubleshoot software-to-PLC communication, data mapping and network issues.
• Support system testing, commissioning, deployment and customer-site activities.
• Prepare PLC data maps, interface specifications and technical documentation.

Mandatory Requirements

• Hands-on professional experience developing applications using C# and.NET.
• Hands-on experience developing Windows desktop applications using WPF and MVVM.
• Practical experience connecting C# applications to PLCs for reading and writing data.
• Experience with at least 2 PLC brands, preferably Mitsubishi, Omron, Siemens or Beckhoff.
• Familiarity with PLC registers, tags, data blocks, memory areas and data types.
• Experience with one or more PLC communication methods such as MC Protocol, SLMP, FINS, S7, ADS, OPC UA or Modbus TCP.
• Able to diagnose PLC connectivity, addressing, byte-order, data-conversion and communication issues.
• Able to understand existing PLC programs sufficiently to identify the data required for software integration.

Added Advantages:

• Experience with WinForms, Windows Services, TCP/IP sockets, REST APIs or databases.
• Experience integrating equipment with MES, EAP, SCADA, SPC or custom factory systems.
• Experience developing industrial monitoring systems using sensors and other devices.
• Experience in semiconductor equipment, manufacturing automation or machine integration.
• Knowledge of SECS/GEM or GEM300.

Interested applicants please send your resume to rita@recruitexpress.com.sg and look for:

Rita Shi Tianhe

Recruit Express Pte Ltd

EA License No: 99C4599

EA Personnel Number: R26162019

We regret that only shortlisted candidates will be contacted.

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