Why join us? Mitti by SafetyCulture is a global tech company, just not the kind you're picturing. Our almost 1,000-person team builds tools that make work better for the three billion frontline workers who keep the world moving. We've got big tech scale, without the sign-off layers or corporate theatre. This next chapter is about scaling smart, powered by AI, a clear vision and real ownership. Big tech impact, without the big tech ick.

Role Purpose This role exists to build Mitti's hybrid network, connecting our existing Amazon Web Services (AWS) and Google Cloud Platform (GCP) environments to a new physical colocation (colo) facility, and connecting that facility to the internet through our own multi-homed network. It's a greenfield build that starts with research and development (R&D;) workloads, so we can prove the foundation before production follows. It's also a software engineering role: the automation built here has to scale from one site to a global footprint, so network and hardware operations are treated as a software problem from day one. This is the first hire into a new team. You'll be primarily a specialist across networking and a generalist across infrastructure rather than a deep network only specialist, and this is not a people leadership role.

Not in scope

application-level reliability and service level objectives, sole ownership of the on-premises Kubernetes platform, and corporate IT. These are owned or shared with other teams.

Key Responsibilities

Design, build and operate Mitti's multi-homed internet edge using Border Gateway Protocol (BGP) with multiple carriers, so traffic moves predictably and losing a path is a non-event.

Design and run the data centre fabric: an Ethernet Virtual Private Network (EVPN)



control plane over Virtual Extensible LAN (VXLAN) overlays with equal-cost multi-path (ECMP) forwarding, so the network scales horizontally and predictably.

Connect AWS and GCP to the physical network with a routed, secure path (interconnect, transit design, Virtual Private Cloud integration, Domain Name System, load balancing and IP address management), defined in code and reproducible. Use it to prepare for a production integration with AWS & GCP.

Contribute to enabling Mitti's own routed Internet Protocol (IP) address space, including address and Autonomous System Number (ASN) allocation through the relevant Regional Internet Registry, announcement, peering and route origin validation, and migrate traffic without disruption.

Build the automation layer for network and hardware operations (provisioning, configuration, validation and change management as code), starting at one site but designed for a global footprint.

Contribute to standing up on-premises Kubernetes on physical hardware with the Cloud Infrastructure Team, owning the network and hardware layer it runs on.

Contribute to the colo setting build: hardware selection, cabling standards, out-of-band management, hardware lifecycle and supplier relationships. The physical build is straightforward and infrequent, so the emphasis is on the network.

Make the estate observable and self-service with the Observability team,



and write the designs, standards and runbooks that the team that follows will need.

Technical Skills Required Skills & Experience

Production experience running a multi-homed BGP network, including peering and sessions with providers, traffic engineering and path selection, and diagnosing issues such as link flapping.

Strong IP networking fundamentals and packet-level debugging (Wireshark or equivalent).

Designing and troubleshooting an EVPN/VXLAN overlay fabric with ECMP multipath forwarding.

Strong Linux system administration, including comfort treating network devices as Linux systems. Experience with open network operating systems such as SONiC is a strong advantage.

Working knowledge of Kubernetes, especially networking (Container Network Interface plugins, services, ingress and load balancer integration) in self-managed or bare-metal environments. We'd welcome someone whose strength is Kubernetes and who is keen to go deeper into networking.

The ability to write working Python or Go to automate network and infrastructure tasks. Experience with Terraform and Ansible is a plus. Our backend teams work in Go, and the Cloud Infrastructure Team's Kubernetes work leans on it too.

Experience building or operating cloud network architecture in AWS or GCP (VPC design, transit routing, private connectivity, VPNs).

Hands-on familiarity with physical infrastructure (racking, cabling, power, out-of-band management through Baseboard Management Controllers). Experience with enterprise or data centre network vendors (Arista, Juniper, Cisco or similar) is helpful, and we're open to people willing to learn.

A plus, not a prerequi

📌 Senior Infrastructure Engineer (Sydney)
🏢 Mitti by SafetyCulture
📍 Sydney