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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