Senior OT Network/Cybersecurity Engineer

A career at Hitachi Rail will help create a legacy. With operations in every corner of the world, our work goes to the cutting-edge of digital transformation and technology. From the multi-cultural strength of our global organisation to the sustainable and innovative ways we work to bring people together, there’s something for everyone to get stuck into. And that’s where you come in.

Hitachi Rail is looking for an enthusiastic self-motivated Senior OT Network/Cybersecurity Engineer who thrives in a fast-paced environment. The successful candidate is comfortable performing a wide range of tasks from administrative to strategic. This is a fulltime permanent position based in Brisbane, Australia.

In this role you will design, implement, integrate, and validate the OT Network and Cybersecurity infrastructure for railway and critical-infrastructure projects. The role combines security architecture ownership with hands-on engineering and implementation responsibility, ensuring that Cybersecurity platforms and controls are deployed according to international standards, project requirements, and local regulatory frameworks.

You will act as the technical go-to point for security platforms, from core IT/OT infrastructure to SOC-enabling technologies, supporting the full lifecycle from design through commissioning and operational handover.

• Design end-to-end OT cybersecurity infrastructure architectures aligned with IEC 62443 and TS 50701 principles.

• Define technical standards, reference architectures, and design patterns for OT cybersecurity platforms.

• Ensure architectural consistency across multiple projects and geographic regions.

Experiences in design, deploy, configure, and validate the following OT Cybersecurity Infrastructure components:

• Network and perimeter security

• Network access and identity

• Threat detection and endpoint security

• Monitoring and SOC enablement

• Core IT/OT infrastructure technology

Map technical solutions to:

• IEC 62443-3-3 system security requirements

• Produce and review security architecture documents, design justifications, configuration standards, and hardening guides.

• Define and execute security FAT/SAT, configuration and hardening validation, functional tests for security controls, and integration testing with OT subsystems.

• Managing changes through CCR and CCB

• Serve as the primary point of contact for cybersecurity infrastructure within the project team.

• Coordinate implementation activities with:

  • OT engineers

  • Network & system engineers

  • SOC teams

• Ability to work onsite at Customer’s premises (at various locations around inner Brisbane)

• Ensure cybersecurity infrastructure designs can be adapted to national cybersecurity regulations, critical infrastructure protection laws, and data protection and logging constraints.

• Support alignment with local authorities, regulators, and assessors without hard-coding country-specific requirements into architectures.

We know talented people don’t always tick every box. If you meet many, but not all, of the criteria below, we’d still love to hear from you.

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, Telecommunications Engineering, Automation Engineering, Electrical/Electronic Engineering, or equivalent technical disciplines.

• Existing RIW (Rail Industry Worker) qualification or is able to obtain RIW.

• Understanding of ETCS technology or experience working within the Rail environment will be advantageous.

• 7–12 years of professional experience in IT/OT Cybersecurity infrastructure, with demonstrated responsibility for architecture and deployment.

• Proven experience delivering cybersecurity infrastructures across critical-infrastructure sectors such as railway, transportation, energy/utilities, oil & gas, or other critical infrastructure environments.

• Demonstrated experience applying:

• Pragmatic engineering mindset with solid security fundamentals.

• Ability to balance cybersecurity, availability, safety, and operational constraints.

• Comfortable working in multicultural, international project environments.

• Able to mentor engineers and influence architectural decisions.

At Hitachi Rail, we know that a diverse business is a sustainable business. Working collaboratively with a range of internal networks, we’re continuously improving our policies and products. From accessible, sustainable design to achieving a better gender balance. We base these efforts on our core values: Harmony, Sincerity, and Pioneering spirit. And by aligning with these, we’re able to create a workplace where people not only feel comfortable but are given opportunities to thrive. We’re especially keen to hear from women and people of all genders considering a career in engineering, cybersecurity, and rail technology.