About The Role We are seeking an experienced Estimator to join our Civil Construction team in our Rockhampton office. This role is responsible for leading the preparation of accurate, commercially sound cost estimates and managing the full tender lifecycle — from Go / No Go assessment through to final submission. Working across civil and rail infrastructure projects, you will analyse project requirements, develop competitive pricing strategies, and lead the preparation of compliant and high-quality tender submissions.

You will collaborate closely with engineering, project delivery, and commercial teams to assess scope, identify risks, and develop realistic cost models that support successful project delivery. This is a key role within our pre-contracts function, suited to a detail-oriented professional who thrives in a fast-paced, deadline-driven environment.

Key Responsibilities Prepare detailed cost estimates and pricing for civil and rail infrastructure projects

Review drawings, specifications, and tender documentation to determine project scope

Analyse labour, plant, materials, subcontractor, and overhead costs to develop pricing models

Prepare bills of quantities (BOQs), cost breakdowns, and supporting tender documentation

Lead preparation and submission of tenders, proposals, and bid documentation

Identify project risks, constraints, and commercial considerations during estimating

Liaise with engineering, project delivery, and commercial teams to validate scope and pricing assumptions

Obtain and evaluate subcontractor and supplier quotations

Develop estimates for rail works including corridor access, possessions, safeworking,



and compliance requirements

Review rail, safety, and regulatory requirements impacting project costing and delivery

Assist with development of construction methodologies and staging for accurate estimating

Maintain estimating records, cost databases, and tender documentation

Support post-tender clarifications, negotiations, and handover to project delivery teams

Contribute to continuous improvement of estimating tools, templates, and pricing methodologies

Support budget development and cost forecasting where required

Maintain strong commitment to workplace safety and OHS standards Essential Experience, Skills & Qualifications 5+ years’ experience in estimating within civil construction, infrastructure, or rail environment

Strong understanding of civil construction methods, materials, and cost drivers

Ability to interpret engineering drawings, specifications, and tender documentation

Experience preparing detailed cost estimates, BOQs, and pricing submissions

Strong analytical and numerical capability

Ability to identify commercial risks and develop mitigation strategies

Experience obtaining and evaluating subcontractor and supplier pricing

Strong organisational and time management skills with ability to manage multiple tenders





High attention to detail and commitment to pricing accuracy

Strong written and verbal communication skills

Proficiency in Excel and estimating / cost management tools

Understanding of project delivery, construction staging, and cost control principles

Ability to work under pressure and meet tight submission deadlines

Current driver’s licence Desirable Qualification in Civil Engineering, Construction Management, Quantity Surveying, or related discipline

Experience estimating rail infrastructure or rail construction works

Experience using estimating or cost management software About Us - Sterling Operating for over 20 years, Sterling Infrastructure has developed a reputation within the Australian transport industry for end-to-end asset lifecycle services. Within the Rail sector our depth of knowledge makes us the ‘go to’ service provider for many of Australia’s leading operators. Our heritage in Rail enables us to deliver a complete range of engineering, asset management, project delivery and consulting services to our Rail client base.

We are a company that offers a great team-based environment with opportunities for growth and career development.

What we offer Development and growth opportunities

Market-competitive salary

Additional annual leave options

Flexible hours and working from home opportunities

Supportive, close knit team

Employee wellbeing initiatives How to Apply To submit your application please click on the apply button below and follow the prompts.

Note: Only shortlisted candidates will be contacted.

📌 Estimator (The Range)
🏢 Sterling Infrastructure
📍 The Range