We currently have an opportunity for an Application Infrastructure Specialist. Join our Business Technology team and play a key role in delivering secure, scalable, and high-performing application infrastructure that supports critical business operations. Reporting to the ICT Infrastructure Manager / IT Portfolio Manager, you'll help deliver high-quality outcomes that support our essential services.

What You’ll Do

This role offers a broad scope, with key responsibilities including:

Analyse, design, build, and support application infrastructure using Microsoft Azure, Windows, and SQL Server technologies.
Collaborate with business and IT stakeholders to deliver secure, scalable solutions aligned with project priorities.
Monitor and optimise performance of databases and applications, ensuring compliance with IT policies.
Manage operational technology systems and underlying server infrastructure.
Ensure accurate documentation, training, and change management processes are maintained.

What You’ll Bring

Proven capability in Microsoft Azure, Windows Server, and SQL Server technologies.
Strong understanding of VMware and Hyper-V virtualisation platforms.
Demonstrated ability to deliver secure and scalable technology solutions in complex environments.
Proficiency in cryptography, PowerShell scripting, and system integration.
Excellent communication, problem-solving, and stakeholder engagement skills.

More than anything, you’ll bring a strong work ethic, a positive attitude, and a commitment to delivering high-quality outcomes for our clients.

Why Downer?

At Downer, we plan, create, and sustain essential public services across Australia and New Zealand. From hospitals to data centres and defence partnerships, we manage critical infrastructure that keeps communities thriving.

What It Means to Belong at Downer

We’re proud of our high-performance culture and commitment to diversity, offering:

Training and development to support and diversify your career.
With 30% of vacancies filled internally you’ll find real opportunities to advance your career.
Perks@Downer: healthcare discounts, great savings on retail purchases, car purchases and much more.
Employee Assistance Program: professional support for you and your family when you need it most.

You want your work to matter and so do we. With over 26,000 people across Australia, New Zealand and the Pacific, our team is made up of individuals with unique perspectives, backgrounds, and ideas.

We know that diversity makes us stronger and we actively celebrate it through our commitment to inclusion and belonging.

We’re committed to building a team that reflects the diverse communities we serve and we welcome people of all ages, genders, sexual orientations, cultures, abilities, and lived experiences. We especially encourage applications from those whose voices have traditionally been underrepresented in our industry, including women, Aboriginal and Torres Strait Islander Peoples, Māori and Pasifika Peoples, veterans, people with disability, and neurodivergent individuals. Even if your experience doesn’t align perfectly with this role, we’d still like to hear from you. If it feels like the right fit, apply - potential counts, and so do you.

As a WORK180 Endorsed Employer, we support flexibility that works for your life, inclusive leadership that values your voice, and equitable access to opportunity so you can do your best work and bring your whole self to it.

If you need support or adjustments through the recruitment process, just let us know, we’re here to help you put your best foot forward.

At Downer we plan, create and sustain. Downer is the leading provider of integrated services in Australia and New Zealand. Through trusted relationships and world leading insight we work closely with our customers to design, build and sustain assets, infrastructure, and facilities.