Provide independent cost assurance and commercial insight thatstrengthensinvestment decisions across Rio Tinto's portfolioInfluence major investment approvals, governance outcomes and portfolio planning while partnering with senior stakeholders and delivery partnersA Brisbane or Perth based opportunity, working within a collaborative and values-driven environmentWe'reFinding Better Ways to provide materials the world needs, now and in the future.
Our values -care,courageand curiosity- guide how we work and how we treat each other.About the roleWe are looking for a Senior Specialist Cost Estimator to help the Enterprise Project Management Office (ePMO) deliver robust investment planning, governanceand decision-making.What you'll be doingReporting to the Senior Manager of Delivery within the ePMO, and working in a cooperative project setting, you will:Validatevendor-provided cost estimates, pricing structures and commercial assumptions for accuracy, completeness and alignment to agreed scope and delivery modelsAssess cost drivers, estimationmethodologiesand key assumptions to support informed investment and portfolio decisionsProvide independent challenge and cost assurance,identifyingrisks, opportunities, affordabilityconcernsand estimation biasSupport investment approvals, governanceforumsand stage-gate reviews with high-quality cost assurance insightsEnsure estimates meet defined standards for quality,transparencyand evidence before progressing through governance processesPartner with project sponsors, commercial teams, procurement, finance, projectcontrolsand delivery partners tovalidateassumptions and improve cost confidenceHighlight commercial implications, pricingrisksand potential cost exposure early in the lifecycle of initiativesIdentifyrecurring estimation issues and systemic inefficiencies to improve portfolio-wide cost visibility and forecasting capabilityAbout youRequired for SuccessA commitment to the safety of yourself and your teamAdvancedexpertisein cost estimating, commercial analysis, investment planning,governanceand risk management,



with the ability to independently review and challenge complex estimates and proposalsDemonstratedexperience validating third-party cost estimates, reviewing commercialproposalsand providing cost assurance within mining, resources, infrastructure, technologydeliveryor other large-scale capital environmentsA tertiary qualification in Project Management, Finance,Commerceor a related discipline.
Professional estimating or cost engineering certification (such as AACE, ICEC or equivalent) is desirableExperience applying structured estimation methodologies, financial analysis, governanceframeworksand project controls practices to support investment decision-makingHelpful for SuccessExperience working with delivery partners,suppliersand contract management teams in complex delivery environmentsKnowledge of portfolio,programmeand project governance processes and stage-gate approval frameworksExposure toenterprise transformation, digital, technology or major capital investment portfoliosAbility to build constructive stakeholder relationships whilemaintainingindependence and objectivityWhat we offerBerecognisedfor your contribution,yourthinkingand your hard work, and go home knowingyou'vehelped the world progress.A work environment where safety is always the number one priorityA permanent position working directly for Rio TintoA competitive base salary reflective of your skills and experience with annual incentive programComprehensive medical benefits includingsubsidisedprivate health insurance for employees and immediate familyAttractive share ownership planCompany provided insurance coverExtensive salary sacrifice & salary packaging optionsCareer development & educationassistanceto further your technical or leadership ambitionsOngoing access to family-friendly health and medical wellbeing supportLeave for all of life's reasons (vacation/annual, paid parental, sick leave)Exclusive employee discounts (banking, accommodation, cars, retail and more)Where you'll be workingThe EnterprisePMO (ePMO) supports the delivery of Rio Tinto's strategic enterprise projects through portfolio oversight, and commercial governance of key supplier partners.
Working across a diverse portfolio with strategic suppliers and service providers, the team helps strengthen commercial performance, improve delivery confidence and ensure contractual commitments are effectively managed to deliver value for the business.About Rio TintoRio Tinto is a leading global mining and materials company.
We operate in 35 countries where we produce iron ore, copper, aluminium, critical minerals, and other materials needed for the global energy transition and for people, communities, and nations to thrive.We have been mining for 150 years and operate with knowledge built up across generations and continents.
Our purpose is finding better ways to provide the materials the world needs - striving for innovation and continuous improvement to produce materials with low emissions and to the right environmental, social and governance standards.
But we can't do it on our own, so we're focused on creating partnerships to solve problems, create win-win situations and meet opportunities.Respect and InclusionAt Rio Tinto, we particularly welcome and encourage applications from Aboriginal and Torres Strait Islander people, women, the LGBTQ+ community, mature workers, people with disabilities and people from different cultural backgrounds.We are committed to an inclusive environment where people feel comfortable to be themselves.
We want our people to feel that all voices are heard, all cultures respected and that a variety of perspectives are not only welcome - they are essential to our success.
We treat each other fairly and with dignity regardless of race, gender, nationality, ethnic origin, religion, age, sexual orientation or anything else that makes us different.
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📌 Senior Specialist Cost Estimator (Brisbane)
🏢 Rio Tinto
📍 Brisbane