Senior C# Automation Software Engineer (HMI/PLC)

CHEMLEX PTE. LTD.; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

ChemLex is seeking a skilled C# Software Engineer to join its new R&D and production facility in Singapore. You will maintain on-site control systems, develop HMI, and optimize software for data acquisition and visualization as part of a rapidly growing start-up focusing on AI and automation in chemical synthesis.

Ideal candidates have 3+ years of experience in software development, strong C#/.NET skills, and familiarity with industrial protocols.

Qualifications

• Bachelor's degree or above in Computer Science, Software Engineering, Automation, Electrical Engineering, Control Engineering, or related fields.
• Over 3 years of software development experience; experience in the electromechanical or industrial control industry is preferred.
• Proficient in C# and VisualStudio; experienced with .Net Framework, WinForm, and WPF for custom UI development; familiar with MVVM pattern; skilled in multithreading, delegates/events, serial communication, and network programming; experience with hardware interfaces such as OPC, PLC, RS232/485, and USB is required.
• Familiar with Ethernet, industrial bus communications, and related protocols such as TCP/IP, UDP, Modbus, Profinet, and CAN.
• Proficient in using Git.
• Experience of vision algorithms is a plus, including alignment guidance, presence detection, defect detection, and dimensional measurement.
• Fluency in English speaking, reading and writing.
• Willingness to travel internationally for training and other business needs.

Responsibilities

• Perform software requirement analysis and architecture design according to product planning.
• Responsible for upper-level software development of automation equipment, industrial control system development, functionality enhancement, and system performance optimization.
• Develop HMI for automated control systems.
• Develop software for data acquisition from PLCs and equipment, real-time data visualization, data querying, summary, and statistical analysis.
• Write and review requirement specification documents and functional design documents.

Skills

C#

Visual Studio

.NET Framework

WPF

MVVM pattern

Multithreading

Networking

Git

Vision algorithms

Education

Bachelor's degree in CS/Engineering

Tools

OPC

PLC

WinForm

HMI development

Job description

ChemLex is seeking a skilled C# Software Engineer to join its new R&D and production facility in Singapore. You will maintain on-site control systems, develop HMI, and optimize software for data acquisition and visualization as part of a rapidly growing start-up focusing on AI and automation in chemical synthesis.

Ideal candidates have 3+ years of experience in software development, strong C#/.NET skills, and familiarity with industrial protocols.