Key Responsibilities
PLC Software Development
Understand PLC Software Development
Develop and maintain PLC software based on IEC 61131-3 standards.
Design, program, test, and validate PLC logic for semiconductor gas and chemical delivery systems.
Support Omron, Siemens, and LS PLC platforms.
Develop reusable software modules and engineering standards
HMI & System Integration
Configure and maintain HMI systems (Pro-face, MXon/M2I).
Implement alarms, diagnostics, state monitoring, and data logging functions.
Integrate PLC, HMI, instruments, motion devices, and network systems.
System Engineering
Analyze customer and product requirements and translate them into software and control system architecture.
Define software-hardware interfaces and control philosophies.
Support system design reviews and risk assessments.
Troubleshooting & RCA
Investigate field issues and implement corrective actions.
Lead root cause analysis (RCA) activities.
Optimize system performance, reliability, and maintainability.
Manufacturing & Customer Support
Support manufacturing, FAT, SAT, commissioning, and startup activities.
Provide technical support during customer escalations.
Develop manufacturing packages and technical documentation.
Cross-Functional Collaboration
Work closely with Mechanical, Electrical, Quality, Project Management, and Manufacturing teams.
Collaborate with global engineering teams on platform standardization and product improvements.
Participate in engineering change management (ECR/ECO) activities.
Continuous Improvement
Drive software standardization and code modularization.
Contribute to technology roadmaps for next-generation control systems.
Mentor junior engineers and share technical best practices
We are known for our extraordinary people who make the impossible possible every day. Questians are driven by hunger, humility, and aspiration. We believe that our company culture is the key to our ability to make a true difference in every industry we reach. Our teams regularly invest time and dedicated effort into internal culture work, ensuring that all voices are heard.
We wholeheartedly believe in the diversity of thought that comes with fostering a culture rooted in respect, where everyone belongs, is valued, and feels inspired to share their ideas. We know embracing our unique differences makes us better, and that solving the worlds hardest engineering problems requires diverse ideas, perspectives, and backgrounds. We shine the brightest when we tap into the many dimensions that thrive across over 21,000 difference-makers in our workplace.
Work Experience
Minimum Qualifications
Bachelor's degree in Electrical Engineering, Automation Engineering, Software Engineering, Computer Science, or related field.
Minimum 5 years of PLC software development experience.
Strong hands-on experience with: Omron / Siemens / LS PLC
Experience with HMI development (Pro-face, MXon, M2I or equivalent).
Knowledge of industrial communication protocols: Ethernet/IP, Modbus TCP/RTU, Profinet, EtherCAT
Experience in troubleshooting and debugging industrial automation systems.
Ability to communicate effectively in an international engineering environment
Preferred Qualifications
Experience with semiconductor equipment, gas delivery systems, chemical delivery systems, or process equipment.
Experience supporting customer sites, installation, and commissioning activities.
Experience with SCADA or industrial software platforms.
Knowledge of functional safety and industrial cybersecurity.
Experience leading technical projects or system architecture reviews.
Experience collaborating with global engineering organizations.
