About the role

Systems Architect developing and maintaining the system architecture for Sydney Trains. Leading collaboration with stakeholders and external partners on complex technology initiatives.

Responsibilities

Be part of the Asset Program team within Asset Management of the Engineering and Maintenance Directorate within Sydney Trains
Responsible for developing and maintaining the system architecture for a major system-of-interest within a dedicated program of work
Act as the Engineering Authority for Operational Technology (OT) system architecture
Lead concept generation, conduct tradespace exploration, drive concept selection activities, and guide the evolution of the architectural solution across complex operational systems supporting both program and organisational objectives
Work closely with an external Client-Side System Integrator (CSSI) engaged by Sydney Trains
Collaborate as peers in architecture development and integration planning
Participate in joint architecture working groups and regular technical workshops
Review and assure the CSSI’s technical outputs
Provide technical and architectural guidance
Ensure the CSSI’s detailed architectural artefacts, documentation, system modelling and analysis align with Sydney Train’s process and systems
Jointly shape key deliverables such as reference architectures, interface definitions, and integration strategies
Ensure architectural alignment, consistency of principles, and effective integration across program boundaries
Manage the ongoing maintenance and evolution of the program’s system architecture throughout the program phases, ensuring it continues to support strategic goals and adapts to emerging requirements.

Completion of a four-year or longer degree in Information Technology, Electrical, Systems Engineering, or an equivalent discipline
Proven experience as a Systems Architect with a focus on telecommunications and operational systems
Extensive background in system architecture and design, including end-to-end solution development
Strong understanding of telecom network technologies (e.g., OSS/BSS, 4G/5G, IP networks, signalling protocols)
Expertise in architecture frameworks and methodologies such as the Unified Architecture Framework, ARCADIA methodology, or similar and hands-on experience with architectural modelling tools
Working knowledge of cloud-native architectures, NFV/SDN, and microservices design
Ability to lead concept generation, tradespace exploration, and architecture evolution
Familiarity with security standards, compliance requirements, and regulatory frameworks in telecommunication industry
Proficiency in integration design and interoperability between complex systems
Strong stakeholder engagement and communication skills to work across engineering, operations, and business teams.