Senior Office Administrator 01/09/2026 Brisbane QLD, Australia

• Great opportunity to join a growing Team


• A supportive, collaborative, and friendly workplace culture


• Weekly pay cycle & great location

Do you want to work for a company who provides the financial peace of mind of a major ASX-listed company with the heart of a family business?

With a massive project pipeline, a hands-on leadership team, and the security of our industry reputation, your future is secured.

Our success is built collectively, through collaboration, trust, and a shared commitment to excellence. Prioritising diversity, professional growth and autonomy, we pride ourselves on measurable outcomes. With us you aren't a number, but a trusted part of a team committed to delivering outstanding outcomes for our global clients. You are empowered to take ownership of your role while working across full project lifecycles. We offer stretch opportunities early and direct mentorship to ensure our teams have the chance to develop new skills and knowledge.

"Family values. Premier performance. Shared success."

About Us:

GR Engineering Services Limited (GRES) is a leading process engineering consulting and contracting company that specialises in providing high quality engineering design and construction services to the mining and mineral processing industries.

The Opportunity:

We are on the lookout for a passionate and friendly Senior Office Administrator to support our Brisbane CBD Team

The Senior Administrator will oversee administrative support within the office, manage day-to-day office operations, and coordinate all corporate travel and new starters on day 1.

A typical day will consist of:

• Management of the day to day office operations


• Assistance with corporate travel, office inductions and new starters


• General adminstration as required


• Supporting the project teams with administration tasks

About you:

• High attention to detail and time management skills


• Advanced knowledge of Microsoft suite essential


• Experience with newstarter onboarding and corporate travel booking essential


• A helpful manner with strong organisational skills


• Ability to prioritise tasks effectively and adhere to deadlines


• Excellent verbal and written communication skills


• Experience working alongside engineering disciplines would beadvantageous


• Full and unrestricted Australian working rights

What's on offer:

We value you and understand that life happens outside of work. Along with convenient amenities , we offer a work place that genuinely cares and as a team we ensure that you have the practical support you need.

This includes:

• Attractive remuneration on a weekly pay cycle


• Employee Assistance Program (EAP), well-being assistance, free for all the family


• A collaborative and supportive team environment with all the tools to succeed


• GRES provides 24 weeks of paid parental leave to primary caregivers


• Friendly supportive culture

With over 800 employees across Australia and growing, our focus is to create a rewarding working environment where you will be valued and appreciated for your knowledge, experience and innovative mind.

Discover what's under the bonnet at GRES by visiting our careers page to find a culture where you are valued, make a difference and gain end-to-end project experience.

GRES is an equal opportunity employer and believes that diversity, equity and inclusion deepens our depth of knowledge, capability and experience.

We welcome applications from all backgrounds.