Firmware Engineer (12 Months)

Quest Global Engineering Solutions Pte Ltd; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

Quest Global Engineering Solutions Pte Ltd is seeking an embedded software engineer to develop and maintain firmware for PLCs and automation systems. You will troubleshoot firmware issues, collaborate with hardware engineers, and ensure robust testing and validation.

The role requires hands-on experience with C/C++, RTOS like VxWorks, and industrial communication protocols (Modbus, EtherNet/IP, CAN, Serial). PLC/CoDeSys exposure is a plus, with a strong emphasis on hardware–firmware integration.

Qualifications

• Bachelor in Computer Science/Electronics Engineering with 3+ years in embedded software development.
• Experience in development of PLCs and/or Bus Couplers and/or IO modules for industrial automation applications.
• Hands-on experience in prototype development and design validation techniques.
• Proficient in C or C++.
• Experience in developing applications on VxWorks.
• Hands-on experience with Modbus, EtherNet/IP, CAN, Serial.
• Preference for PLC work in CoDeSys environment.

Responsibilities

• Develop, test, and maintain firmware for PLCs and other automation systems.
• Identify and resolve issues within the firmware through troubleshooting and debugging.
• Collaborate with hardware engineers and other software developers across cross-functional teams.
• Ensure firmware functions meet requirements through thorough testing.
• Work with real-time operating systems such as VxWorks.
• Handle communication protocols like Modbus, EtherNet/IP, CAN, Serial.

Skills

Firmware development

Troubleshooting

Collaboration

Testing

RTOS knowledge

Communication protocols

PLC programming languages

Hardware & firmware integration

Education

Bachelor in Computer Science/Electronics Engineering

Tools

VxWorks

CoDeSys

Job description

JOB REQUIREMENTS

• Firmware Development:Developing,testing, and maintainingfirmwarefor PLCs and other automation systems.

• Troubleshooting and Debugging:Identifying and resolving issues within thefirmware.

• Collaboration:Working with cross-functional teams, including hardware engineers and other software developers.

• Testing:Ensuring that thefirmwarefunctions as expected and meets requirements.

• Knowledge of RTOS:Familiarity with real-time operating systems like VxWorks.

• Communication Protocols:Experience withcommunication protocolssuch as EtherNet/IP and OPC/UA.

• PLC Programming Languages:Familiarity withPLC programming languageslike Ladder Logic and Structured Text.

• Hardware and Firmware Integration:Understanding the interaction betweenfirmwareand hardware.

JOB REQUIREMENTS

1. Bachelor in Computer Science/Electronics Engineering with minimum of 3 years of experience in embedded software development

2. Demonstrated experience in development of PLCs and/or Bus Couplers and/or IO modules for industrial automation applications

3. Hands-on experience in developing prototype and design validation techniques

4. Demonstrated programming experience with C or C++

5. Experience in developing applications on VxWorks

6. Hands-on experience withcommunication protocols(Modbus, EtherNet/IP, CAN, Serial)

7. Preferred if the candidate has worked on PLC withCoDeSys environment