Senior Electrical Estimator, Substations and BESS

ACCIONA delivers complex civil and infrastructure projects across Australia. Our Transmission team supports national tenders that strengthen networks across varied terrain. You help shape bids that support energy transition and long term infrastructure resilience. About the Opportunity/Position

The Senior Electrical Estimator – Substations/BESS develops accurate, timely, and compliant cost estimates and proposals for electrical infrastructure projects. The role's primary focus is on high-voltage substations (AIS/GIS) and Battery Energy Storage Systems (BESS).

As part of a national transmission and energy team, the estimator supports tenders across multiple regions, bringing specialist expertise in substations and energy storage systems, including grid connections and balance-of-plant scope.

What are the key accountabilities for the position?

Develop cost estimates for HV substations (AIS/GIS) and BESS from first principles (materials, plant, labour, subcontractor pricing)

Coordinate procurement and tendering strategies, including subcontractor pricing and bid meetings

Conduct risk assessments and manage provisional sums/contingency allowances

Prepare estimate basis documents, WBS, and bridging documents for cost tracking

Present estimates and cost reports to senior management and clients

Apply CCS/Candy, Expert Estimation, Excel, and Power BI for estimating and reporting

Required Skills and Competencies

Degree or Diploma in Electrical Engineering, or a Trade Electrical qualification with on-site experience

6+ years' experience in engineering, project delivery, or related technical roles within infrastructure, utilities, or construction

Includes a minimum of 4+ years' estimating experience on major infrastructure projects, preferably transmission lines, high-voltage (HV) systems, substations, or electrical infrastructure

Proficient in CCS/Candy, Expert Estimation, Excel, and Power BI

First Principles estimating skills, ability to interpret drawings

ACCIONA has been given the Top Employer 2022, 2023, 2024 & 2025 certification in Australia, which certifies the company's commitment to excellence in human resources management and those who focus on putting their people first through their exceptional HR policies. Since establishing a presence in Australia in 2002, ACCIONA has made significant investments in local opportunities and project development. ACCIONA employs more than 3,000 people in its renewable energy, infrastructure and water projects across Australia & New Zealand.

We are an Equal Opportunity Employer and promote equality and diversity. Indigenous Australians and candidates from minority groups are encouraged to apply.