We are seeking an organised and proactive Accounts & Administration Assistant to join our Mascot office. This is a varied role supporting the day-to-day finance and administration functions of the business. You will work closely with our Accounts, Commercial and Project teams and will have exposure to the financial administration of civil construction projects.

Key responsibilities

- Assist with accounts payable and accounts receivable
- Assist with invoice coding, reconciliation and maintaining accurate financial records
- Maintain supplier and subcontractor records
- Communicate with suppliers, subcontractors and internal project teams regarding accounts and documentation
- Assist with employee and subcontractor compliance documentation
- Maintain accurate electronic records and filing systems
- Provide general administrative support to the Accounts, Commercial and Project teams
- Assist with other finance and administration duties as required

About you

- Previous experience in an Accounts Assistant, Finance Administration or Administration role
- Basic knowledge of accounts payable, accounts receivable and bookkeeping principles
- Strong attention to detail and accuracy
- Good organisational and time-management skills
- Confident written and verbal communication skills




- Proficiency in Microsoft Office, particularly Excel, Outlook and Word
- Ability to communicate professionally with suppliers, subcontractors and internal teams
- A proactive attitude and willingness to learn
- Experience within the construction, engineering or infrastructure industry will be highly regarded but is not essential
- Experience with Xero and/or Procore would also be advantageous

About us

Certus Projects is a Sydney-based civil engineering and construction contractor delivering complex infrastructure projects across roads, bridges, rail and maritime infrastructure for government, private and major construction clients. We are a growing team with a strong focus on quality, collaboration and continuous improvement. Our people are encouraged to take ownership of their work, develop professionally and contribute to the continued growth of the business.

- Exposure to major civil and infrastructure projects
- Support and training to develop your accounts and construction administration skills
- Career development opportunities as Certus Projects continues to grow
- Regular professional development and team training
- A cooperative and inclusive working environment

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📌 Accounts & Administration Assistant (Sydney)
🏢 Certus Projects
📍 Sydney