Office Administrator

Office Administrator
Location: Naval Base, WA
Company: RW Equipment & Consulting Australasia (RWECA)
Type: Casual- (with the opportunity to transition to permanent full-time following the successful completion of a six-month probationary period)

Hours: Monday to Friday, 8-hour shifts (38–40 hours per week)

Join a growing team supporting Australia’s largest mining and rail clients.

RW Equipment & Consulting Australasia (RWECA) is a leading supplier of Flashbutt welding machinery and specialist technical services to Tier 1 mining and rail infrastructure companies across Australia.

We are seeking a driven and detail-oriented Administrator to join our team at our Naval Base office.

Key Responsibilities:

• Provide day-to-day administrative support across the business, including assisting with Accounts Payable (AP) and Accounts Receivable (AR) functions, data entry, reconciliations, and maintaining accurate financial records.

• Prepare, review, and process customer quotations, invoices, purchase orders, and associated documentation

• Coordinate procurement activities, including creating and managing purchase orders, processing supplier invoices, and maintaining procurement workflows through SAP Ariba while liaising with suppliers and internal stakeholders

• Coordinate employee and contractor site mobilisations, including arranging flights, accommodation, medicals, inductions, training, and onboarding documentation to ensure personnel are site ready.

• Provide comprehensive administrative support to the Operations Team and Senior Management, including document preparation, reporting, scheduling, correspondence, record management, and assisting with the day-to-day coordination of business operations.

What We’re Looking For:

• Demonstrated experience in a similar Administration, Cost Control, Project Administration, or Mobilisation role, preferably within the rail, mining, engineering, or construction industries.

• Strong working knowledge and practical experience using Xero and SAP Ariba, with the ability to confidently manage financial and procurement processes.

• Proven experience coordinating workforce mobilisation for major resource clients, including BHP, Roy Hill, and other Tier 1 organisations, with a strong understanding of the Enable platform and site access requirements.

• Proficiency in Microsoft Excel and general office software

• Exceptional attention to detail, with strong organisational and administrative skills and the ability to maintain a high level of accuracy.

• Demonstrated ability to effectively manage multiple priorities, work autonomously, and consistently meet deadlines in a fast-paced environment.

• Excellent written and verbal communication skills, with a professional, proactive, and customer-focused approach when liaising with clients, suppliers, and internal stakeholders.

• A collaborative team player who thrives in a dynamic environment and enjoys supporting field personnel, operational teams, and senior management to achieve business objectives.

• A positive attitude, strong work ethic, and a willingness to learn, contribute, and grow within a rapidly expanding business.

Why RWECA?

• Work with a company that services Tier 1 clients such as BHP, FMG, Roy Hill, and John Holland

• Be part of a close-knit team where your contribution matters

• Opportunities for growth as we continue to expand across Australia and internationally

• A supportive and flexible work environment based in Naval Base