Principal Backbone Architect - AI Network Connectivity

Firmus; Sydney; On-site; AUD 210,000 - 360,000; Full time

Job summary

Firmus Technologies in Sydney, Australia, seeks a Principal Network Architect, Backbone Connectivity to lead architecture and assurance for the backbone platform underpinning Firmus AI Factory and Firmus AI Cloud. You will translate strategy into scalable, resilient designs, set standards, and guide implementation across terrestrial and subsea networks.

You will collaborate with carriers, data-centre partners and internal teams to ensure high-performance, secure, and scalable connectivity that

Qualifications

• Senior-level insight into national and international backbone design across terrestrial and subsea networks.
• Experience designing and operating large-scale backbone networks for AI infrastructure.

Responsibilities

• Own technical architecture of Firmus backbone network and advise Head of Connectivity.
• Define standards and reusable patterns for engineers and partners.
• Ensure resilience, vendor-neutrality and scalability across subsea and terrestrial assets.
• Lead changes, cutovers and governance with carriers, data-centre and operations teams.

Skills

Network architecture

Backbone design

IP/MPLS

Segment routing

SRLG resilience

Education

Bachelor's or Master's degree in Electrical/Electronic Engineering, Telecommunications, Computer Science or related discipline

Tools

DWDM/OTN

ROADM

IP backbone

Job description

Firmus Technologies in Sydney, Australia, seeks a Principal Network Architect, Backbone Connectivity to lead architecture and assurance for the backbone platform underpinning Firmus AI Factory and Firmus AI Cloud. You will translate strategy into scalable, resilient designs, set standards, and guide implementation across terrestrial and subsea networks.

You will collaborate with carriers, data-centre partners and internal teams to ensure high-performance, secure, and scalable connectivity that