Due to our contained growth Castleross Construction is seeking a Project Administrator to join our team to assist on upcoming infrastructure projects across WA.

About Us

Castleross Construction is a civil contractor specialising in complex infrastructure, precast, and in-situ concrete works.

We partner with major contractors and asset owners to deliver technically challenging projects across transport, marine, industrial, and infrastructure sectors. Our reputation has been built on strong delivery capability, practical problem solving, and a hands-on approach both in the office and on site.

Role Overview

The Project Administrator will support the day-to-day running of projects, with a focus on timesheets and payroll, coordinating FIFO flights and accommodation, and assisting the engineering team with general admin tasks. The role will suit someone who is organised, reliable and able to juggle multiple tasks in a busy environment.

What's on Offer?

- Competitive salary package based on experience
- Office (Monday-Friday) and site-based role
- Long-term career opportunities with a growing construction company
- Full time permanent position

Key Responsibilities

Timesheet Tracking &

• Payroll Support

- Collect, review and track employee timesheets to ensure accurate and timely submission.
- Follow up with employees and site personnel regarding outstanding, incomplete or incorrect timesheets.
- Liaise with site teams and supervisors to resolve timesheet discrepancies and clarify hours worked.
- Assist with preparing and coordinating timesheet information for payroll processing.
- Maintain accurate timesheet records and tracking registers, ensuring deadlines are met.
- Provide general administrative support to ensure payroll information is complete and submitted on time.

FIFO Travel &

• Accommodation Coordination

- Coordinate ongoing FIFO flight bookings, changes and cancellations in line with project and site requirements.




- Arrange and manage accommodation bookings for employees travelling to and from site.
- Maintain up-to-date travel schedules, accommodation records and personnel movement information.
- Liaise with employees, site teams, travel providers and accommodation suppliers to coordinate travel arrangements.
- Monitor upcoming rosters and travel requirements, proactively identifying and resolving booking issues.
- Assist with managing changes to personnel movements, roster requirements and project schedules.

Project &

• Engineering Administration

- Provide day-to-day administrative support to Project Managers, Engineers and wider project delivery teams.
- Assist with preparing, formatting and maintaining project documentation, reports, meeting minutes and project updates.
- Coordinate engineering documentation, including drawings, Requests for Information (RFIs), correspondence and other project records.
- Assist with document control, including filing, version control, document registers and distribution of current documentation.
- Maintain organised electronic filing systems to ensure project information is accurate, accessible and up to date.
- Assist with coordinating meetings, tracking action items and following up on outstanding tasks.
- Provide general administrative support to engineering and project teams as required.

Procurement &

• General Administration

- Assist with procurement activities, including raising or tracking purchase orders, monitoring deliveries and following up with suppliers.
- Maintain registers, spreadsheets and administrative records to support project and operational requirements.




- Assist with data entry, document preparation, correspondence and general office administration.
- Liaise with employees, suppliers, subcontractors and internal stakeholders to obtain information and resolve routine queries.
- Support other administrative and coordination tasks as required to meet changing project and business needs.

About You

- Previous experience in an administrative, project support or coordination role.
- Strong organisational skills and attention to detail, particularly when managing timesheets, travel bookings and records.
- Experience with timesheet tracking, payroll administration or payroll support will be highly regarded.
- Experience coordinating FIFO flights, accommodation or workforce logistics will be highly regarded.
- Strong computer skills, including Microsoft Excel, Word and Outlook.
- Ability to maintain accurate records, manage competing priorities and meet strict deadlines.
- Clear and professional communication skills, with the confidence to follow up employees, site personnel and external providers.
- A proactive, practical approach to problem-solving, with the ability to identify issues and follow them through to resolution.
- Ability to work independently while supporting a wider project and engineering team.
- Experience in construction, engineering, mining or resources projects will be highly regarded.
- Familiarity with project management systems, document control platforms or workforce management systems will be advantageous.
- Have a full driver's license and reliable transport

To Apply, please submit your application below.

Castleross Construction is an equal opportunity employer are an equal opportunity employer committed to creating an inclusive and diverse workplace. We encourage applications from people of all backgrounds, including Aboriginal and Torres Strait Islander, and people from culturally diverse backgrounds.

📌 Project Administrator (Perth)
🏢 Castleross Construction
📍 Perth