Semiconductor Equipment Software Engineer — C# & C++

ST SEMICONDUCTOR TESTING PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

ST Semiconductor Testing Pte. Ltd. is seeking an experienced software engineer to develop and maintain control software for industrial machines using C#/.NET and C++.

You will implement motion control via EtherCAT and TwinCAT, and host communications via SECS/GEM, while supporting multi-language UI in English and Chinese. You will collaborate with mechanical, electrical, vision, and process engineers on machine bring-up, debugging, and qualification, ensuring robust software architecture and

Qualifications

• Degree or Diploma in Computer Engineering, Computer Science, Electrical/Electronic Engineering, Mechatronics, or related field.
• At least 2 years of software development experience for industrial machines, automation equipment, or semiconductor equipment.
• Proficient programming skills in C# (.NET) and C++, with a willingness to primarily work in C#.
• Strong understanding of object-oriented design, multithreading, and event-driven system architectures.
• Ability to work hands-on with real machines on the production floor and troubleshoot hardware-software integration issues.

Responsibilities

• Develop and maintain handler control software in C# & C++, including machine sequences, device control, and operator GUI to ensure efficient machine operation
• Contribute to a common software platform shared across multiple machines, promoting code reuse and consistency
• Integrate motion control systems using EtherCAT and TwinCAT protocols for precise equipment movement
• Implement host communication protocols using SECS/GEM to enable reliable data exchange with host systems
• Integrate vision applications and other vendor equipment through APIs to enhance machine capabilities
• Collaborate with mechanical, electrical, vision, and process engineers to support machine bring-up, debugging, and buy-off activities
• Write clean, documented, and testable code; participate in code reviews and release planning to maintain software quality
• Support multi-language user interfaces including English and Chinese to accommodate diverse user needs

Skills

C# .NET

C++

Multithreading

Object-oriented design

SECS/GEM

EtherCAT

TwinCAT

WPF/WinForms

Vision systems integration

English & Chinese UI

Education

Degree in Computer Engineering/CS/EE/Mechatronics

Tools

Beckhoff

WPF/WinForms

APIs for vendor equipment

Job description

ST Semiconductor Testing Pte. Ltd. is seeking an experienced software engineer to develop and maintain control software for industrial machines using C#/.NET and C++.

You will implement motion control via EtherCAT and TwinCAT, and host communications via SECS/GEM, while supporting multi-language UI in English and Chinese. You will collaborate with mechanical, electrical, vision, and process engineers on machine bring-up, debugging, and qualification, ensuring robust software architecture and