About Us

Gamuda Engineering is a global engineering and construction leader specialising in the design, delivery, and maintenance of major Transport, Civil, and Energy Infrastructure projects. In Australia, our footprint is expanding rapidly through major city-shaping packages for Sydney Metro - including the Western Tunnelling Package and the Stations Package West (SPW) -alongside landmark joint-venture developments such as the $1.35B Coffs Harbour Bypass and the $1B M1 Motorway Extension.

Following our successful award of the Parramatta Integrated Station Development (ISD), which includes station box excavation and integrated station infrastructure at Parramatta, we are mobilising a high-performing project delivery team and building an innovative, inclusive culture positioned as an employer of choice.

About the Role

Based on-site in Parramatta, we are seeking a proactive, highly organised Office Administrator to support our site office operations, project administration, and document control functions for the Parramatta Integrated Station Development (ISD) project. In this hands-on operational role, you will be vital to maintaining smooth day-to-day site office workflows, managing administrative systems, coordinating site records, and providing dedicated administrative support across our engineering, commercial, and site leadership teams.

Key Responsibilities:

- Oversee day-to-day site office operations, coordinating office facilities, cleaners, office maintenance/defects, and site consumable/PPE orders with vendors.• Assist with project document control, maintaining accurate document registers, issuing transmittals via TeamBinder/SharePoint, and ensuring strict version control.
- Process site financial records including invoice verification, credit card reconciliations, expense claims, purchase requisitions,



and subcontractor payment documentation.
- Coordinate site onboarding activities, site inductions, visitor logs, and compliance records across project administration systems for staff and sub-contractors.
- Provide high-level administrative support to site leadership, commercial, HSEQ, and engineering teams - including calendar management, meeting coordination, agendas, and monthly report collation.
- Manage site correspondence, filing systems, printing/collating of meeting packs, and general administrative duties to maintain an efficient project office environment.

Skills and Experience• 2–4 years' experience in a Site Administrator, Office Administrator, or Project Administration role within construction, civil engineering, or major infrastructure projects.

- Practical experience using document management systems (e.g., TeamBinder, ACC, Aconex, or SharePoint) for transmittals and records management.
- Solid proficiency across MS Office Suite (Word, Excel, PowerPoint, Outlook) with exceptional attention to detail in formatting, filing, and data entry.
- Outstanding organizational and multi-tasking abilities with a proven track record managing competing priorities in a fast-paced site environment.
- Strong written and verbal communication skills with a positive, cooperative approach to building relationships with site engineers, clients, and suppliers.

What We Offer

- Central administrative role on the city-shaping Parramatta Integrated Station Development project.• High-performing, supportive site culture backed by a Tier-1 global engineering group.
- Competitive remuneration package with clear administrative and project coordination career growth pathways.

Gamuda Australia encourages and supports a diverse and inclusive workforce, including candidates from overseas and current Visa holders.

Unsolicited agency CVs submitted to Gamuda will not be accepted.

📌 Office Administrator (Australia)
🏢 GAMUDA
📍 Australia