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Administration Assistant

  • Sydney, NSW, Australia
  • Max term - Full Time
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  • 12-month fixed term contract
  • Support senior leadership and office operations in a central Sydney role
  • Coordinate events, finance tasks and executive support activities

Alinta Energy is one of Australia’s biggest energy retailers, generators and developers with over 1.1 million customers. Australia’s energy system is undergoing the biggest transformation in its history and we’re right there with it. We’re investing in and developing large-scale renewables and storage projects as part of our ongoing effort to provide our customers with reliable, affordable and sustainable energy.

We understand that flexibility matters when considering your next role. Let us know your requirements, and we’ll carefully consider how we might accommodate them.

Ready to make a real impact?

This role sits within the Executive pillar in our Sydney office, supporting the EA to the CEO and broader office operations. You will play a key role in maintaining smooth day to day operations through administrative support, coordination of events, financial processing and office management.

Why you’ll love working here

At Alinta Energy, we’re taking real action to deliver reliable and sustainable energy for Australia — and that practical approach runs through everything we do. You’ll get clear direction, genuine flexibility, and the support you need to grow, all while working on projects that make a lasting difference. We’re big enough to create impact, but small enough that your ideas and effort will always be seen.

There are plenty of other great benefits of working for Alinta Energy, including flexible working, energy discounts, an Employee Assistance Program (EAP), a paid volunteer day each year, fully stocked kitchens, and lots more.

What you’ll do

  • Supporting the EA to CEO with executive coordination, including travel and general assistance
  • Coordinating and delivering office and team events, including invitations and RSVPs
  • Managing finance administration including purchase orders, invoices and expense reconciliation
  • Providing reception coverage and supporting office operations including supplies and visitors
  • Maintaining filing systems, liaising with building management and coordinating office maintenance

Your experience

  • Strong written and verbal communication skills with attention to detail
  • Experience working in a Microsoft Office environment
  • Ability to work collaboratively in a team setting
  • Previous experience in an administrative or office support role
  • Exposure to Microsoft Forms, Power Automate or Canva is beneficial but not essential

Please note this role requires full working rights within Australia.

This role is suited to a proactive and organised individual who thrives in a fast paced office environment and enjoys supporting both executive and team operations.

Like what you’re seeing?

If you like the sound of this, and you’ve got experience in a similar role, we’d love to talk to you. Come and discover better together with Alinta Energy.

We are a 2026 Circle Back Initiative Employer – we commit to respond to every applicant.

If your application progresses, we will need to complete background and pre-employment checks, such as immigration checks, reference checks, criminal background checks, qualification checks, and additional checks for roles related to finance.

Our Diversity Commitment

Alinta Energy offers a truly diverse, safe and supportive work environment. As an equal opportunity employer, Alinta Energy encourages applications from any qualified person, including First Nations Australians, members of the LGBTQIA+ community, people of all ages and people living with a disability. We are also proud to be a WORK180 Endorsed Employer and we are committed to advancing women’s careers.

We look forward to hearing from you.

Click ‘Apply’ to submit your application.

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