Lead Network Architect, AI Backbone & Global Connectivity

Firmus Technologies; Sydney; On-site; AUD 210,000 - 290,000; Full time

Job summary

Firmus Technologies in Sydney, Australia seeks a Principal Network Architect, Backbone Connectivity to lead the architecture for the AI Factory and Firmus AI Cloud backbone. You will translate strategy into scalable, vendor-neutral designs across subsea and terrestrial networks.

You will drive design standards, ensure operational resilience, and mentor engineers while collaborating with carriers and data-centre partners to maintain cutting-edge, high-performance connectivity.

Qualifications

• Strong technical foundation in large-scale backbone networks across carrier, hyperscale or AI infra environments.
• Experience designing terrestrial long-haul fibre and subsea systems with landing-station connectivity and route diversity.
• Proven ability to define reference architectures, design standards and architecture decision records.

Responsibilities

• Own the technical architecture of Firmus' backbone network, spanning subsea and terrestrial fibre, optical transport and data-centre interconnection.
• Lead architecture reviews, governance with carriers/ Vendors, and technical assurance across the lifecycle.
• Mentor the engineering team and align designs with sustainability and resilience goals.

Skills

Network architecture

Backbone connectivity

DWDM/OTN

IP/MPLS & EVPN

SRLG reliability

Vendor-neutral design

Leadership & mentoring

Education

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

Job description

Firmus Technologies in Sydney, Australia seeks a Principal Network Architect, Backbone Connectivity to lead the architecture for the AI Factory and Firmus AI Cloud backbone. You will translate strategy into scalable, vendor-neutral designs across subsea and terrestrial networks.

You will drive design standards, ensure operational resilience, and mentor engineers while collaborating with carriers and data-centre partners to maintain cutting-edge, high-performance connectivity.