OT Network Security Engineer - Juniper Firewalls (Brisbane)

Hitachi, Ltd.; Brisbane; On-site; AUD 120,000 - 160,000; Full time

Benefits offered by this job

Salary review

Professional development

Health and wellbeing initiatives

Employee assistance program

Extra days off

Job summary

Hitachi Rail is seeking an enthusiastic OT Network Security Engineer for a full-time permanent role based in Brisbane, Australia. The role covers design, implementation, and validation of OT network security and firewall infrastructure for rail and critical infrastructure projects.

You will own security architecture and hands-on engineering, serving as the technical go-to for network security and firewalls throughout the project lifecycle—from design to commissioning and handover.

Qualifications

• Bachelor’s degree in cybersecurity or related technical discipline.
• Minimum 5 years of professional IT/OT cybersecurity infrastructure experience.
• Hands-on experience with Juniper firewalls and security platforms.
• Familiarity with IEC 62443, NIST 800-82/53, ISO 27001 standards is desirable.

Responsibilities

• Design end-to-end OT network security architecture.
• Define technical standards, reference architectures and design patterns for security platforms.
• Design and implement network security platforms and firewalls (Juniper).
• Coordinate security validation tests, FAT/SAT and handover to operations.
• Act as the primary security-architecture owner within project teams.

Skills

Juniper firewalls

TCP/IP fundamentals

Troubleshooting

Network security

PKI SSL inspection

Routing concepts

Threat detection

Education

Bachelor’s degree in Cybersecurity/related field

Job description

Hitachi Rail is seeking an enthusiastic OT Network Security Engineer for a full-time permanent role based in Brisbane, Australia. The role covers design, implementation, and validation of OT network security and firewall infrastructure for rail and critical infrastructure projects.

You will own security architecture and hands-on engineering, serving as the technical go-to for network security and firewalls throughout the project lifecycle—from design to commissioning and handover.