Infrastructure Engineer

Why join SUBCO

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 Infrastructure Engineer with a strong background in on-premise environments and cloud infrastructure to join our IT operations 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 on-site data centres as well as design and deploying to cloud hosted environments.

Responsibilities

On premises server environment & Infrastructure Management

• Maintain, monitor, and optimise Subco's on-premises server environments (compute, storage, networking) supporting critical systems that underpin international submarine cable operations.
• Implement security hardening, patching, and lifecycle management of physical and virtual server assets.
• Administer identity and access management systems for on-premises environments.
• Optimise infrastructure costs and manage budgets effectively. Manage hardware lifecycle including refresh cycles and end-of-life equipment planning.
• Lead automation of provisioning, configuration, and patching using infrastructure-as-code and orchestration tools

Cloud Infrastructure Engineering (AWS)

• Design, deploy, and manage AWS infrastructure aligned with Subco's network technology platforms, ensuring scalability, resilience, and compliance.
• Support the design and deployment of cloud infrastructure using IaC.

Reliability & Operations Support

• Monitor system health, alerting, and observability across on-prem and cloud environments to ensure high availability, with hands-on incident troubleshooting in collaboration with the NOC and network engineering teams — including on-call rotation.
• Ensure backup, disaster recovery, and business continuity plans are in place and regularly tested, while continuously tuning and optimising infrastructure performance.

Security & Compliance

• Uphold security standards, access controls, and compliance frameworks across hybrid infrastructure, supporting audits, disaster recovery testing, and cyber-resilience initiatives in close partnership with security teams.

Collaboration & Continuous Improvement

• Partner with network engineers, software developers, and operations teams to deliver infrastructure that supports automation, orchestration, and AI/analytics initiatives.
• Champion continuous improvement by evaluating new technologies, managing vendor relationships, and bridging the gap between technical delivery and stakeholder communication.

About you

• Are experienced in Infrastructure or Systems Engineering, with strong background in managing physical/virtual servers, storage, networking, and hardware lifecycles.
• Bring experience in virtualisation (VMware, Hyper-V, KVM, Nutanix), container platforms, and orchestration technologies.
• Are skilled in designing, deploying, and managing AWS cloud infrastructure, hybrid environments, and Infrastructure-as-Code (Terraform, CloudFormation, CDK).
• Have strong Linux/Windows command-line, automation, and configuration management (Ansible, Puppet, PowerShell); experience with CI/CD tools (GitHub Actions, GitLab CI, Jenkins).
• Knowledge of databases (SQL Server, PostgreSQL, MySQL, Oracle), identity management (Active Directory, LDAP, federation), and enterprise networking (firewalls, load balancers, VLANs, VPNs, direct connect).
• Familiarity with SAN/NAS storage (NetApp, Dell EMC, Synology), backup/recovery, clustering, high-availability, and disaster recovery planning.
• Experienced in monitoring and observability (Prometheus, Grafana, Zabbix, Nagios) and performance/capacity planning.
• Strong understanding of IT security best practices, compliance, and operating in secure or regulated environments (finance, defence, healthcare).
• Skilled in troubleshooting, root cause analysis, change management (ITIL), and leading/contributing to infrastructure projects.
• Strong communication skills for both technical and non-technical stakeholders; comfortable with on-call support.
• Industry certifications (e.g., VMware VCP, RHCE, MCSE, CompTIA Server+/Network+) 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 – Extra paid leave each year for life admin, study, appointments, or important moments that matter to you
• 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), available to the primary carer, with superannuation contributions for up to 12 months, even during unpaid leave
• Milestone rewards