Senior Estimator – Water & Infrastructure

About ACCIONA Agua

ACCIONA Agua is a global leader in sustainable water infrastructure, delivering innovative solutions across the full lifecycle of water projects – from design and construction to operation and long‑term management. The Opportunity

We are currently bidding on a few major water infrastructure tenders in Australia and seek an experienced

Senior Estimator (Mechanical/Electrical)

to play a critical role from the bid stage through to execution. Key Responsibilities

Lead detailed quantity take‑offs and robust cost forecasting Manage multiple bids simultaneously and act as the key interface with senior leadership Coordinate estimates across mechanical, electrical, civil and subcontracted scopes Review and refine estimates in response to project requirements and client feedback Participate in pre‑ and post‑bid meetings and ensure full compliance with client and regulatory standards Collaboration & Delivery Readiness

Partner with internal teams and key subcontractors to obtain pricing for labor, materials and specialized equipment Maintain and enhance historical cost databases and utilise internal estimating systems Ensure knowledge transfer to delivery teams once projects are awarded Leadership & Development

Mentor and support junior estimators, fostering technical excellence and consistency Contribute to the development of estimating standards and best practices across the business Planning & Quality Control

Develop and maintain company‑wide estimating methodologies and governance Ensure that estimating tools align with industry best practices Collaborate closely with Quality Management to maintain high compliance and control standards Qualifications & Experience

Bachelor’s degree in Mechanical or Electrical Engineering (or related field) Minimum 5 years’ experience in estimating for major water infrastructure projects, ideally in desalination Proven ability to deliver accurate cost estimates for large‑scale projects (treatment plants, pipelines, pump stations) Strong knowledge of construction methodologies and cost estimation systems Proficiency in estimating software and MS Word, Excel, and Access Excellent communication and client relationship management skills Why ACCIONA Agua?

Be part of a major, career‑defining tender Stay on to deliver the projects you helped win Work for a global, purpose‑driven company committed to sustainability and innovation Long‑term career growth in Australia’s fast‑growing water infrastructure sector Collaborative, international environment with access to global expertise

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