Senior Administrator

About the Company

Monadelphous is an ASX-200 company providing multidisciplinary construction, maintenance and industrial services to many of the largest companies in the resources, energy and infrastructure sectors. Established in 1972, we’ve been working in Australia and around the world for more than 50 years. We work on the biggest projects and ensure our teams have a variety of opportunities available to follow their career path of choice.

Our Maintenance and Industrial Services division specialises in providing comprehensive, multidisciplinary maintenance and improvement solutions for customers across Australia and internationally, through a network of supporting workshops and operations in key regional areas, within the resources, energy and industrial sectors. Our expertise encompasses a wide range of services including the planning, management and execution of mechanical and electrical maintenance and project services, shutdowns, civil and infrastructure works, fixed plant maintenance services, access solutions, specialist coatings and rail maintenance services.

Safety is at the forefront of everything we do, and we live by our promise: The Safe Way is the Only Way. Apply now to get started. A career at Monadelphous is a career with a difference. Make it yours.

About the Role

Monadelphous is seeking an experienced Senior Administrator to join our team supporting a new project being implemented in our East Cost Head Office. This is an immediate start opportunity for a driven, motivated and organised professional looking to contribute to high-profile project while working within a strong safety culture. As a Senior Administrator, you will be a solutions focused individual providing essential administrative support to our project team, ensuring the smooth coordination of both the day-to-day operations whilst maintaining accurate project records. Position Information: Ref # 300056356; Region Brisbane, QLD; Date Posted 07-Aug-2026.

Key Responsibilities

• Provide administrative support directly to the implementation team.
• Process, input, and upload claims and invoicing.
• Perform data entry from a variety of information sources.
• Assist with cost tracking and variance reporting.
• Assist with the preparation and distribution of internal and external reports.

About You / Requirements

• Previous experience in a senior administration role, ideally within the resources, mining, energy, or construction sectors.
• Experience with claims and invoicing will be essential.
• Advanced proficiency across the Microsoft Office Suite, particularly Excel, Word, and Outlook.
• Experience with Microsoft Dynamics will be well regarded.
• Excellent communication and interpersonal skills, with the confidence to engage across all levels of the organisation.
• Strong attention to detail with well-developed analytical and problem-solving abilities.
• A positive solutions focused, attitude and willingness to continuously learn and develop.
• Full Australian working rights.

Whats On Offer / Benefits

• Opportunity for growth and career development.
• Safety and wellbeing at the forefront of our culture.
• Supportive team environment.

How to Apply

Apply now to get started. A career at Monadelphous is a career with a difference. Make it yours.