contract administrator/estimator

6 hours ago

Osborne Park, Western Australia ZERA PROJECTS PTY LTD Full time $90,000 - $120,000 per year

The Company

Zera Projects is a Perth-based commercial construction and fit-out builder delivering complete solutions across the hospitality, medical, education, and industrial sectors.

Beyond project delivery, we provide ongoing facilities-management and maintenance services, supporting our clients long after completion.

Working alongside our sister company Lazco, a leader in stainless-steel and refrigeration manufacturing, Zera brings a unique capability to deliver complex, mechanical and refrigeration-heavy commercial projects.

We're now seeking a skilled Contracts Administrator / Estimator to join our growing team. If you thrive in a fast-paced environment and want exposure to a broad range of technical and high-quality commercial projects, we'd love to hear from you.

Why join Zera

  • Competitive salary + performance bonuses
  • Flexible working arrangements
  • Supportive, quality-driven and collaborative team
  • Opportunities to grow into senior commercial or project-management roles

Candidates:

  • 3-7 years' experience in commercial construction, with a proven track record administering subcontract agreements from award through to close-out.
  • Estimating capability - can interpret drawings and specifications, perform take-offs, and develop accurate construction budgets.
  • Procurement and compliance knowledge - understands tendering, subcontract procurement, compliance documentation, financial control, and the management of variations, procurement schedules, and progress claims.
  • Strong communication and organisation skills - able to coordinate multiple priorities and maintain clear communication with clients, subcontractors, and suppliers.
  • Contract and regulatory knowledge - familiar with Australian Standard contracts, variations, and building codes/regulations.
  • Technical proficiency - advanced in Microsoft Office (particularly Excel) and experience with Buildxact, Procore, Bluebeam, or similar construction and estimating software.
  • Relevant qualifications - degree or diploma in Construction Management, Quantity Surveying, or a related discipline, or equivalent practical experience.

The Role

  • Contract Administration - manage the commercial and contractual aspects of projects and facilities, ensuring documentation, approvals, and claims are completed accurately and on time.
  • Tendering & Estimating - coordinate tender requests, interpret drawings and specifications, and contribute to competitive and accurate pricing submissions.
  • Cost Book Development - build and maintain internal cost books and historical rate libraries for labour, materials, and subcontractor pricing to improve consistency and speed in future estimates.
  • Cost Control & Procurement - monitor budgets, variations, and progress claims; assist with forecasts and cost-to-complete reviews; identify savings; and coordinate timely procurement with site and trade teams.
  • Quality & Compliance - ensure all work complies with contractual requirements, building codes, and safety standards, while supporting continuous improvement and risk management.

How to Apply

If you're ready to take on new challenges and want to join a growing, dynamic team, we'd love to hear from you.

Please send your cover letter and resume to

with the subject line "Contracts Administrator / Estimator Application & [Your Name]

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