Electrification - Process Automation Engineer

Job ID

521679

Posted since

10-Sep-2026

Organization

Mobility

Field of work

Engineering

Company

Siemens Mobility Limited

Experience level

Early Professional

Job type

Full-time

Work mode

Office/Site only

Employment type

Permanent

Location(s)

• Bangkok - Krung Thep Maha Nakhon - Thailand

At Siemens Mobility, we empower transport providers worldwide to realize sustainable mobility solutions. As a leading technology company, we combine the real and digital worlds like no other in rail. In an open ecosystem, we bring together rolling stock, rail infrastructure, customer service, and software to enable sustainable, comfortable, and cost-effective rail traffic today.

Transform the everyday through your role in creating sustainable transport solutions.

Siemens Mobility Thailand is looking for a Process Automation Engineer (Junior level) for Network Control Systems in the field of Railway Electrification in Bangkok.

Create a better tomorrow with us.

The key responsibilities include:

• Develop and deliver process automation engineering solutions for DC and AC Traction Power Supply (TPS) substations, including control, protection, and software design documentation.
• Design and configure substation control systems, protection relays, and HMI/GUI applications, while supporting internal and customer acceptance testing activities.
• Provide technical support during manufacturing, installation, and commissioning phases by troubleshooting issues and responding to technical inquiries.
• Coordinate technical interfaces and integration of electrical systems within traction and service substations, ensuring seamless system functionality and compliance.
• Manage assigned engineering work packages and support bid, project execution, and customer/supplier technical discussions through effective planning, coordination, and stakeholder engagement.

Use your skills to move the world forward

• Bachelor’s degree or higher in Electrical Engineering, Automation Engineering, Electronics, Control & Instrumentation, or a related discipline, with 1-3 years of relevant experience in power distribution, electrical control, protection, and automation systems.
• Hands-on experience with PLC and HMI systems, preferably Siemens SIMATIC products (STEP7, WINCC, TIA Portal), with knowledge of IEC 61131-3, C/C++, C#, and software engineering principles.
• Familiarity with industrial communication protocols and standards, including Profinet, Profibus, Modbus, DNP3, IEC 60870-5-101/104, and IEC 61850, as well as communication networks and supervisory control systems.
• Basic knowledge of traction power supply systems, substation control and protection, energy transmission and distribution, and relevant European and international standards; experience with Power SCADA, commissioning, and digital protection relays is an advantage.
• Strong English communication skills with the ability to work in international and multicultural project environments, develop scalable software solutions, leverage AI-enabled tools, and contribute to railway electrification and process automation projects.

Why you’ll love working for Siemens Mobility

We live and foster an ownership culture in which every employee takes personal responsibility for our Company's success. We invest in our team members, offering a wide variety of development opportunities.

Below some of the other benefits we offer to our employees:

• Flexible working arrangements
• Flexible Benefits Program for employees & dependents
• Medical Insurance for Spouse and Children
• Siemens Share Options
• National & International opportunities
• Positive, inclusive and relaxed working environment

Join a team dedicated to transforming the everyday for a more sustainable future.

Siemens prides itself on its diverse workforce.

Siemens has been recognised as ahead of its time for many reasons, and our progressive policies is one of them. We encourage applications that reflect the diversity of the communities within which we work.

We are a proud equal opportunity employer, where we continue to push for a work environment of diversity and inclusion, we also believe that differences in personalities, thoughts and ideas are important, and that is why we know diversity and inclusion is very important in helping realise the potential of our people. As part of our Ownership culture, Siemens supports reasonable flexible working practices that empower our employees to best meet work and personal commitments. #LI-SK1