Platform Engineer

We build the infrastructure the internet actually runs on.

Most people don't think about what happens when a video call connects Sydney to Singapore in under 50 milliseconds, or how a cloud file reaches a data centre on the other side of the world in the blink of an eye. The answer is almost always an undersea cable - and building those cables is exactly what SUBCO does.

We build, own and operate high-capacity submarine cable systems linking Australia to Asia, the Middle East, and beyond. The internet's backbone isn't in the cloud. It's on the ocean floor - and we put it there.

You'll work on things that matter at scale.

SUBCO is an Australian-owned scaleup at an inflection point. We're not a startup finding its feet, and we're not a slow-moving incumbent. We're a fast-growing team of specialists doing infrastructure work that shapes how entire regions connect to the global digital economy.

About the role

We are looking for an experienced Platform Engineer with a strong background in hybrid environments to join our Digital Services team. This role is responsible for the design, deployment, management, and support of critical infrastructure systems-including servers, virtualization platforms, networking, storage, and compute resources hosted within our on-site data centres or co-located facilities and cloud platforms.

Key Responsibilities

• Deploy, and manage hybrid infrastructure aligned with Subco's network technology platforms, ensuring scalability, resilience, and compliance using IaC and orchestration tools.
• Implement security hardening, patching, and lifecycle management of virtualised workloads.
• Administer identity and access management systems for hybrid environments.
• Support automation of provisioning, configuration, and patching using infrastructure-as-code and orchestration tools.
• Support the design and deployment of cloud infrastructure using IaC.
• Build and deployment platforms & tooling to support the development lifecycle.
• Support the build of secure AWS platforms for AI and agentic workflows.

Reliability & Operations Support

• Implement monitoring of system health, alerting, and observability across hybrid environments to ensure high availability of critical digital infrastructure.
• Troubleshoot and resolve incidents impacting Subco's operational systems, collaborating closely with the NOC and network engineering teams, including participation in on-call rotation.
• Ensure backup and disaster recovery processes are in place and tested.

Security & Compliance

• Ensure security standards and access controls are aligned to security frameworks such as Essential 8 and ISM.
• Support audits, disaster recovery testing, and cyber-resilience initiatives critical for a trusted subsea operator.
• Work closely with security teams to ensure compliance with internal and external regulations.
• Lead or contribute to infrastructure projects and communicate technical concepts to stakeholders.
• Partner with network engineers, software developers, and operations teams to deliver infrastructure that supports automation, orchestration, and AI/analytics initiatives.
• Maintain detailed documentation of systems, configurations, and procedures.

About You

• Proficient in virtualisation (VMware, Nutanix or similar), container platforms, and orchestration technologies.
• Skilled in designing, deploying, and managing AWS cloud infrastructure, hybrid environments, and Infrastructure-as-Code (Terraform, CloudFormation, CDK).
• Strong Linux/Windows command-line, automation, and configuration management (Ansible, Puppet, PowerShell); experience with CI/CD tools (GitHub Actions, GitLab CI, Jenkins).
• Experience with modern identity management tools (EntraID, Active Directory)
• Exposure to ZTNA technologies (Cloudflare WARP, Zscaler)
• Strong experience with hybrid cloud connectivity (Direct Connect, Express Route, Megaport)
• Familiarity with storage technologies (NetApp, Dell EMC, Synology).
• Experienced in monitoring and observability (Grafana, New Relic or similar)
• Strong understanding of IT security best practices, compliance, and operating in secure or regulated environments (finance, defence, healthcare).
• Skilled in troubleshooting, root cause analysis, and leading/contributing to infrastructure projects.
• Comfortable with ambiguity
• Strong communication & collaboration skills for both technical and non-technical stakeholders. Industry certifications highly regarded.

What we offer

• Hybrid work model - We value face-to-face collaboration, while still giving you flexibility to balance work and life. We work in office together 3 days a week and 2 from home (Monday & Wednesdays).
• We work in a beautiful office, located in a convenient location in the Fortitude Valley.
• Flex Leave - 5 extra paid days each year for life admin, study, appointments, or the moments that matter most
• Your birthday off
• Free coffee & snacks
• Pet-friendly HQ - Bring your furry (or not-so-furry) friends to the office
• Parental leave - 12 weeks paid parental leave (or 24 weeks at half pay) with superannuation contributions for up to 12 months, even during unpaid leave