About the role

We’re looking for a motivated and detail-driven Contracts Administrator | Estimator to join our team at Firmus Building in Canterbury, NSW.

In this full-time role, you’ll work closely with our Managing Director and Construction Manager to prepare accurate cost estimates, manage contracts, and provide essential support to our site team across a range of custom home projects.

What you’ll be doing

Preparing and managing client and subcontractor purchase orders, engagements, and variations

Producing detailed cost estimates and tender proposals

Monitoring project budgets, progress, and costs

Liaising with clients, subcontractors, and suppliers to ensure smooth project delivery

Assisting with approvals, design coordination, and occupancy certificates

Supporting the wider construction team with day-to-day operations

What we’re looking for

Minimum 3 years’ experience in a similar contracts administration or estimating role within residential construction

Solid knowledge of construction methods, materials, and cost estimating principles

Proficiency with construction-specific software (estimating and project management tools)

Strong communication and stakeholder management skills

Ability to work both independently and collaboratively within a team

Tertiary qualifications in construction management, engineering, or a related field (preferred)

A valid driver’s licence (role is office-based with occasional site visits)

What we offer

Competitive salary package based on experience, with performance-based incentives

Clear pathways for professional development and career growth

A supportive, motivated team environment where knowledge-sharing is encouraged

A collaborative, family-style culture with a focus on innovation and quality

About us

At Firmus Building, we specialise in custom-designed residential homes, with over 15 years of experience in delivering high-quality, innovative projects. We’re passionate about building homes that enhance the way our clients live and pride ourselves on exceptional service and craftsmanship.

If you’re ready to grow your career with a trusted and forward-thinking builder, we’d love to hear from you. Apply now and join our team at Firmus Building.