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Salary
≈ $9k – $22k per year (Estimated)
Location
In office (Bangkok)
Seniority
Junior · 2+ years exp

Confirmed on the employer's own hiring board on Nov 4, 2026. First seen by Alion on Oct 7, 2026. Alstom scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Headquartered in Saint-Ouen-sur-Seine, France, Alstom is a leading global manufacturer and provider of sustainable rail transport systems and mobility solutions. The enterprise develops and deploys an extensive portfolio of rolling stock, including high-speed trains, urban metros, and trams, alongside advanced signaling, digital mobility, and rail infrastructure technologies. Operating in dozens of countries worldwide, the company delivers integrated turnkey systems and customized lifecycle services to support efficient, low-carbon public transit networks.

Req ID:525735

At Alstom, we understand transport networks and what moves people. From high-speed trains, metros, monorails, and trams, to turnkey systems, services, infrastructure, signalling, and digital mobility, we offer our diverse customers the broadest portfolio in the industry. Every day, 80,000 colleagues lead the way to greener and smarter mobility worldwide, connecting cities as we reduce carbon and replace cars.

Could you be the full-time Security Gateway Software Designer Engineer in Bangkok we’re looking for?

Your future role

Take on a new challenge and apply your cybersecurity and software development expertise in a cutting-edge field. You’ll work alongside collaborative and innovative teammates.

You'll play a key role in designing, developing, and maintaining cybersecurity software solutions that ensure secure and reliable communications in railway systems. Day-to-day, you’ll work closely with teams across the business (engineering, cybersecurity, and project management teams), oversee product integration efforts, and produce comprehensive technical documentation to support ongoing projects.

You’ll specifically take care of developing and integrating new features for the Security Gateway (SGTW) product, but also ensure its scalability, reliability, and maintainability through proactive maintenance activities.

We’ll look to you for:

  • Designing, developing, and integrating new features and enhancements for the Security Gateway (SGTW) product

  • Ensuring software scalability, reliability, and maintainability through corrective and preventive maintenance

  • Diagnosing and remediating software defects, anomalies, and cybersecurity vulnerabilities

  • Developing and maintaining automation tools, scripts, and frameworks for build, testing, and deployment processes

  • Producing and maintaining technical documentation, including functional specifications, technical notes, and test procedures

  • Designing, executing, and maintaining unit, integration, and system-level testing to ensure software quality and performance

  • Delivering project objectives while meeting Quality, Cost, and Delivery (QCD) commitments

All about you

We value passion and attitude over experience. That’s why we don’t expect you to have every single skill. Instead, we’ve listed some that we think will help you succeed and grow in this role:

  • Bachelor’s degree in Computer Engineering, Software Engineering, Telecommunications Engineering, Computer Science, or a related field

  • Strong understanding of software development principles, methodologies, and the Software Development Life Cycle (SDLC)

  • At least 2 years of professional experience in software development, automated testing development, or related engineering roles

  • Proficiency in, or strong interest in developing with, technologies such as PHP, Python, Rust, and Bash/Shell scripting

  • Experience with Continuous Integration and Continuous Deployment (CI/CD) tools, preferably GitLab CI

  • Strong knowledge of Linux operating systems, including system administration, service management, troubleshooting, and debugging

  • Good understanding of networking technologies and cybersecurity principles

  • Knowledge of FreeBSD is considered a strong advantage

  • Ability to work effectively in a regulated industrial environment with a strong focus on cybersecurity, reliability, and compliance

Things you’ll enjoy Join us on a life-long transformative journey - the rail industry is here to stay, so you can grow and develop new skills and experiences throughout your career. You’ll also:

  • Enjoy stability, challenges, and a long-term career free from boring daily routines

  • Work with advanced cybersecurity solutions for railway communications

  • Collaborate with cross-functional teams and supportive colleagues

  • Contribute to innovative projects that make a tangible impact on global mobility

  • Utilise our inclusive and dynamic working environment

  • Steer your career in whatever direction you choose across functions and countries

  • Benefit from our investment in your development, through award-winning learning programs

  • Progress towards roles such as Senior Software Engineer, Cybersecurity Specialist, or Technical Lead

  • Benefit from a fair and dynamic reward package that recognises your performance and potential, plus comprehensive and competitive social coverage (life, medical, pension)

You don’t need to be a train enthusiast to thrive with us. We guarantee that when you step onto one of our trains with your friends or family, you’ll be proud. If you’re up for the challenge, we’d love to hear from you!

Important to note

As a global business, we’re an equal-opportunity employer that celebrates diversity across the 63 countries we operate in. We’re committed to creating an inclusive workplace for everyone.

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