Site Administrator

About MinRes

• ASX 200 Company - A dynamic global leader with cutting edge innovation
• Our people’s wellbeing is at the forefront of our thinking, with in-house Wellness Centre including on-site Mental Health Support.
• Taking Mining to the next level with State-of-the-Art site facilities including award winning food prepared by MinRes’ own chefs!

The OpportunityMinRes is seeking a motivated Site Administrator with a wealth of experience to join the team based at our head office in Osborne Park.

This role is a permanent full-time role based on a Monday to Friday (10hr days) work schedule. This is a perfect opportunity for someone who thrives in a fast-paced environment! We want someone who has a ‘can-do attitude’ and is eager to contribute to our busy team. You will be a key player in managing administrative tasks and supporting daily operation.

Key responsibilities include:

• Provide comprehensive administrative support to site management and staff, including roster management, travel coordination, scheduling meetings, issuing correspondence, and preparing reports.
• Coordinate with various internal and external stakeholders, including operations, HR, payroll, safety, training, mobilisations and subcontractors to ensure seamless communication and operational efficiency.
• Working closely with our people logistics team, booking travel and logistics, managing rosters and any changes that come up on a day-to-day basis. Liaise with subcontractors to arrange travel and accommodation requirements.
• Support employees with timesheet entry queries and ensure cost codes are allocated in the relevant systems.
• Act as a liaison between the site and corporate offices, handling inquiries and ensuring timely communication of relevant information.

What is required?

• Demonstrated experience in a site administration role
• Great organisational skills
• Ability to work in a fast-paced environment
• Detail-oriented, proactive, with a strong ability to manage time effectively and work collaboratively in a fast-paced environment
• Experience using mobilisation and flight management software (INX and SAM)
• Strong Microsoft Outlook, Word and Excel skills
• Current Australian working rights

About CSI Mining ServicesCSI, a wholly-owned subsidiary of Mineral Resources (MinRes), is one of Australia’s largest mining services contractors. CSI provides world-class tailored crushing, screening, and processing solutions for some of the world’s largest mining companies.
Our service offerings include design, manufacture, commissioning, and on-site operation and maintenance of plant facilities, as well as specialised mine services such as materials handling, plant and equipment hire and maintenance, tails recovery, aggregate crushing and mine design, as well as engineering and construction.
The Mineral Resources Transport (MRT) team operates and manages all stages of the mine-to-port supply chain for all our owned and/or operated mine sites across WA.

Head OfficeOur headquarters at 20 Walters Drive sets a new standard for workplace wellness.
World class facilities include a café, restaurant, commercial gym, crèche, daycare and health centre, including GP.

Applications close 3pm Wednesday 11th March 2026.

At MinRes, the future's bright. Be part of our next chapter.