McMahon Services is seeking an experienced Senior Estimator to join our Engineering & Projects team, based in Adelaide.This is a key role within the Precontracts team, responsible for delivering medium to large scale, multi-discipline tenders and supporting the successful conversion of opportunities into project wins.You will contribute to a strong and diverse pipeline of work across sectors including Water, Defence, Resources, Industrial and Energy, showcasing the breadth and technical capability of our E&P team.About McMahon Services McMahon Services is one of Australia's largest privately owned construction, industrial and environmental services organisations, operating across Australia and New Zealand with over 1,300 employees. Our reputation is built on integrity, strong relationships and delivering certainty for our customers.About the Role This role offers variety and flexibility, with responsibility for leading estimating activities across a range of complex projects. You will work collaboratively with internal teams to develop high quality submissions, robust cost estimates and practical construction methodologies.What You'll DoLead the preparation and delivery of detailed cost estimatesReview and develop estimates using first principles and subcontractor inputsManage tender submissions including EOIs and post tender activitiesCoordinate estimators, engineers and submissions teamsDevelop construction methodologies, programs and cost strategiesIdentify and manage commercial and technical risks and opportunitiesEngage with subcontractors and suppliers to obtain competitive pricingSupport negotiations and project handover activitiesWhat You'll Bring7–10+ years' experience in construction estimatingStrong commercial acumen and understanding of cost structuresProven ability to manage stakeholders and contribute to team outcomesStrong communication, negotiation and problem-solving skillsTertiary qualification in Engineering, Construction, Quantity Surveying or similar (desirable)What Will Set You ApartExperience across sectors such as water, industrial, oil & gas or resourcesStrong understanding of D&C, ECI and construct-only delivery modelsAbility to develop innovative and value-engineered solutionsWhy Join McMahon Services?Work on complex, high-value projects across critical infrastructure sectorsCareer progression within a growing national contractorCollaborative, high-performing team environmentStrong focus on safety, innovation and continuous improvementAt McMahon Services, we embrace diversity and inclusion as fundamental values. We believe that a diverse workforce fosters innovation, creativity and a deeper understanding of the communities we serve. We are committed to creating an inclusive environment where all employees feel valued, respected and empowered to contribute their unique perspectives and talents. We encourage applications from people of all backgrounds, identities and experiences.#J-18808-Ljbffr