Senior Network Infrastructure & Security Engineer - Sutherland

Micronet Systems Australia Pty Ltd – Sutherland NSW

Senior Infrastructure & Security Engineer - Sutherland

Micronet is a privately owned software company based in Sutherland. We build and host HARMONiQ, an ERP platform for distribution, service and manufacturing businesses, with over 3,000 people connected to our hosted environment. We’re small, we move quickly, and we don’t do red tape.

This is a new position within our technical team. We’re looking for a hands‑on engineer to share responsibility for our hosting platform: keeping it up, keeping it secure, and helping us work through the next few years of infrastructure and cybersecurity change.

You’ll join the existing team and work with them to shape the roadmap and build it together. It’s a role for someone who wants a real say in the direction, enjoys working alongside others, and still wants to be on the tools. You’ll report to the Managing Director, but the platform is a shared responsibility, and we succeed or struggle as a team.

What you and the team will own

Uptime and security of our hosted environment plus Micronet’s own network and devices

The 6 and 12 month infrastructure and security roadmap, and delivering it hands‑on

Our disaster recovery playbook: documented, tested and proven, so recovery is rapid

Our technical partners for hosting, managed services and SQL support

Leading and mentoring each other,



working closely with our Service Desk and R&D; teams

What you’ll bring

Deep hands‑on experience running Windows hosting environments: RDS, VMware or Hyper‑V, SQL Server, Fortinet, Microsoft 365, Entra and Defender

A security mindset: you patch, harden and monitor so the 2am call never comes

A proactive approach that fixes root causes rather than symptoms, and documents what you do

Clear communication: you set priorities and keep the team and customers informed

Straight answers on what’s realistic, rather than saying yes and letting it slip

Why Micronet?

Sutherland office, with flexibility for some remote time if desired. Skip the city commute and be home in ten minutes

Flexible start times, from 9am to as late as 3pm, and we work around family commitments

Small, privately owned, no bureaucracy. Good ideas get approved in a conversation and shipped the next day

A friendly, values driven organisation with a personal trainer on Fridays, wellbeing support and exciting staff events

Funding for the security training and certifications you need

On the on‑call part

Yes, there’s an on‑call roster, but it’s for genuine P1 incidents only, it’s paid, and they happen a few times a year at most. Your whole job is to make them rarer. If the phone rings regularly, something upstream needs fixing, and you’ll have the authority to fix it.

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📌 Senior Network Infrastructure (Sutherland Shire Council)
🏢 Micronet Systems Australia
📍 Sutherland Shire Council