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About the Role

Hitachi Rail is seeking a Principal OT Cybersecurity Infrastructure Engineer to design, implement, integrate, and validate OT cybersecurity infrastructure for critical infrastructure projects. This role requires ownership of security architecture and hands-on engineering to ensure platforms and controls meet project requirements, international standards, and Australian regulatory obligations.

Responsibilities

Define end-to-end, vendor-agnostic OT cybersecurity architectures using zones and conduits, defence in depth, secure segmentation, high availability, and resilient design principles.
Establish reusable technical standards, reference architectures, and integration patterns across projects and regions.
Lead the design, configuration, integration, and validation of network and perimeter security, identity and access management, threat detection, SOC-enabling technologies, data protection, cyber recovery, and secure core IT/OT infrastructure.
Translate IEC 62443, CLC/TS 50701, NIST, and ISO requirements into practical controls.
Maintain traceability from requirements and risk assessments through architecture, implementation, testing, and assurance evidence.
Define and execute security FAT and SAT activities, hardening and configuration checks, functional control tests, and integration tests with OT subsystems.
Support vulnerability reviews, remediation, Security Case inputs, and operational acceptance.
Coordinate with OT, network, systems, SOC, vendor, and systems-integration teams.
Plan technical work, manage dependencies and interfaces, identify delivery risks, and provide clear progress reporting.
Adapt designs to Australian critical-infrastructure, cybersecurity, data-protection, and logging obligations while preserving reusable architectural principles.
Mentor engineers and influence multidisciplinary design decisions.

Requirements

Engineering degree enabling full membership to Engineers Australia.
Bachelor’s degree in cybersecurity, computer science, information technology, telecommunications engineering, automation engineering, systems engineering, or an equivalent technical discipline.
At least five years of professional experience in IT/OT cybersecurity infrastructure, including responsibility for architecture and deployment.
Demonstrated delivery experience in railway, transportation, energy, utilities, oil and gas, or another critical-infrastructure environment.
Hands-on experience designing, configuring, integrating, testing, and commissioning cybersecurity platforms and controls.
Practical application of IEC 62443, including zones and conduits, defence in depth, security levels, and system and component requirements.
Experience producing architecture, configuration, hardening, test, assurance, and operational handover documentation.
Experience applying CLC/TS 50701 in railway projects.
Ability to adapt cybersecurity architectures and controls to Australian regulatory, critical-infrastructure, data-protection, and logging obligations.
Experience engaging with project assurance stakeholders, assessors, regulators, vendors, and systems integrators is desirable.

Skills

Cybersecurity architecture
OT cybersecurity infrastructure
Network security
Perimeter security
Identity and access management
Threat detection
SOC-enabling technologies
Data protection
Cyber recovery
Secure IT/OT infrastructure
IEC 62443
CLC/TS 50701
NIST
ISO
Vulnerability reviews
Risk assessment
FAT and SAT
Configuration hardening
Functional control testing
Integration testing
Australian regulatory obligations
CISSP
CISM
CRISC
GIAC GICSP
GIAC GRID
GIAC GCIP
IEC 62443 cybersecurity certification

Location

Sydney, New South Wales, Australia

Work Type

Full time

Experience Level

Principal
At least five years of professional experience

Education Level

Bachelor’s degree in cybersecurity, computer science, information technology, telecommunications engineering, automation engineering, systems engineering, or an equivalent technical discipline.
Master’s degree in cybersecurity, information assurance, or systems engineering is desirable.

Benefits

Annual performance, development, and salary review process.
Ongoing professional development and training.
Salary continuance.
Health and Wellbeing initiatives throughout the year (incl. flu vaccinations).
Employee Assistance Program (employees and family).
Days off per year sponsored by the company in addition to the statutory public holidays and leave entitlements.
Invitation to attend and participate in Company sponsored social events throughout the year.

About the Company

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.
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.

Equal Opportunity

At Hitachi Rail, there is a place for everyone. We welcome and value differences in background, age, gender, sexuality, family status, disability, race, nationality, ethnicity, religion, and world view. It is our commitment to create an inclusive environment - we are proud to be an equal opportunity employer.