Estimator - Water and Waste

Alder Group; Gold Coast City; On-site; AUD 120,000 - 150,000; Full time

Job summary

Alder Group on the Gold Coast is seeking an experienced Estimator to lead detailed estimates for civil and water infrastructure projects across Queensland and Northern NSW. You will use first principles, derive rates, and work with internal teams to grow tender opportunities.

Join a growing Civil & Infrastructure division, collaborate with suppliers and the Business Development Team, and help shape competitive tenders from early scoping to final tender submissions.

Qualifications

• 3+ years in a similar role within civil infrastructure.
• Proficient with estimating using first principles.
• Strong communication and time management skills.
• Able to work independently and in a team.

Responsibilities

• Undertake detailed estimates using quotations and first principles.
• Communicate with internal stakeholders.
• Develop/streamline estimating systems and rate libraries.
• Collaborate with Business Development and suppliers to grow opportunities.
• Liaise with clients and client representatives in target markets.
• Prepare tender estimates and conduct early tender meetings.
• Assist project team with post-tender discussions and cost verification.

Skills

Estimator experience

Civil estimating

Communication skills

Self-motivated

Time management

Tools

Expert Estimation

Job description

Alder Group is proudly celebrating 23 years in 2026, bringing engineering and construction teams together under one roof to deliver high-quality building, civil and infrastructure projects across Queensland and Northern NSW.

As our Civil & Infrastructure division continues to grow, we're looking for an experienced Estimator with a strong background in Water and Wastewater infrastructure to join our team on the Gold Coast. This rare opportunity has opened due to major project wins, internal promotions and a rapidly expanding tender pipeline.

If you're ready to take the lead on high-impact civil infrastructure tenders across some of the most scenic regions in Southeast Queensland and the Northern Rivers, this role offers the perfect blend of challenge, stability and career progression

About the role

• Undertake detailed estimates using a combination of quotations and rates derived from first principals.
• Communicate with internal stakeholders
• Assist with the development/streamlining of current estimating system, resource and rate library’s.
• Work closely with the Business Development Team ensuring continued growth, and identification of new opportunities.
• Collaborate with key suppliers to maintain high quality relationships and a strong supply chain

Regularly liaise with Clients and Clients Representatives in the target markets.

• Promote the business in a positive manner to create opportunities.

Estimate and prepare the tender or budget estimate.

• Conduct meetings in early stages of the Tender period with the Estimating Manager and other team members

Assist the Project Team with post tender discussions, clarifications and meetings.

• Measurement of works to verify quantities.
• Compiling and applying rates to arrive at final construction costs

About You - Skills and Experience

• You will have a commitment to quality and professionalism in all tasks performed.
• Proficient with the use of 'Expert Estimation' (or similar equivilant)
• At least 3+ years and a proven track record in a similar role.
• Good time management & Good Communication skills
• Self-motivation and able to work independently and in team environment

About the business

Here at Alder Group we have a diverse portfolio of works to our name and deliver outstanding and award winning results across the Infrastructure, Water and Wastewater, Education, Retail, Commercial, Health, Hospitality, Industrial, Manufacturing and Community sectors.

From project inception through to handover, our work is high quality, good value and safe, all thanks to our great team, which you could be part of!

What we offer:

Our culture reflects who we are and how we work, holding ourselves accountable to every commitment, delivering quality work we're proud of, and fostering a genuine, down-to-earth team environment where people feel valued, supported and challenged to grow.

Join us to experience:

• A supportive and collaborative workplace where people are valued, respected and encouraged to do their best work.
• A genuine 'one team' mindset and focus on continuous improvement.
• Opportunities to develop your capability, expand your experience and grow your career within a dynamic and evolving business.
• A company committed to a vision that ensures we not only deliver exceptional outcomes today but create a lasting impact for the future.
• A competitive remuneration package aligned to your experience and the value you bring to the role.

This is an exciting opportunity to grow your career and work for a successful organisation in a secure and rewarding industry.