Principal Estimator

At Transgrid, we play a crucial role in connecting electricity generators through our transmission network to the distribution network that power homes and businesses - We operate over 13,000km of high voltage transmission wires and 128 substations in NSW, VIC and the ACT. 

It is an exciting time in the industry as we are leading the transition to Australia’s clean energy future, with a growing network and the extra career opportunities that this growth brings.

The opportunity

As Principal Estimator, you will work in close partnership with the Senior Manager, Estimation to provide enterprise‑level leadership in cost estimation across Transgrid’s Prescribed and Contestable portfolio.

The role supports and complements the Senior Manager, Estimation by providing deep technical authority, independent assurance, and strategic insight to enable confident executive and regulatory decision‑making.

What you'll do

• Set enterprise estimation standards and governance
• Assure and peer‑review major project estimates
• Advise executives on cost risk and uncertainty
• Escalate material risks and confidence issues
• Uplift estimation capability and practice
• Improve tools, data, and benchmarks
• Provide market and cost trend insights

About You

• Degree in Engineering, Construction Management, Quantity Surveying, or a related discipline
• Extensive experience providing strategic cost leadership on major infrastructure programs, ideally in transmission and substation works
• Demonstrated ability to work collaboratively with senior leaders
• Comfortable operating as a senior technical authority within a broader leadership model
• Recognised subject‑matter expertise in probabilistic estimating, risk modelling, and cost governance
• Experience with RIB MTWO, Palisade @Risk, and statistical analysis tools (highly regarded)
• Clear and confident communicator, experienced in presenting complex estimates to stakeholders.

Our Values 

Transgrid’s core values encompass safety, achievement, integrity, and service. Prioritising safety above all, the company emphasises making a meaningful impact through achievement, upholding honesty through integrity, and delivering exceptional outcomes for customers and communities through dedicated service. These values are ingrained in the actions and behaviours of Transgrid’s people, who embody them every day.

What’s in it for you? Benefits & Perks

At Transgrid, we empower our people with a well-rounded benefits package designed to support their personal, professional, and social well-being, helping them deliver their best work every day.

Employees have access to a range of corporate discounts across retail, utilities, travel, health & wellbeing etc, as well as novated leasing options, workplace flexibility, 20 weeks paid parental leave and more.

Applications close 11.59pm, Tuesday 24th February 2026. Please note, our vacancy close dates may be subject to change, and we will assess applications as they are received.

Transgrid is committed to Health and Safety, the Environment, Equal Employment Opportunity, Diversity and Ethical Practices. All applicants are expected to demonstrate an understanding of and commitment to these areas.