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Downer Professional Services

Cost Estimator

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Downer Professional Services

Multi‑disciplinary advisory & delivery partner for defence, government and infrastructure projects.

Cost estimator for defence projects, focusing on cost modelling and TCO analysis
10 days ago ago
Intermediate (4-7 years), Experienced (8-12 years), Expert & Leadership (13+ years)
Full Time
Canberra, Australian Capital Territory, Australia
Hybrid
Company Size
438 Employees
Service Specialisms
Program Management
ICT
Security
Systems Engineering
Asset Management Engineering
Strategic Planning
Assurance
Sector Specialisms
Defence
Government
Cyber Security
Systems Engineering
ICT/Network Engineering
Project Management
Program Management
Logistics
Role

Description

cost estimation
parametric tools
cost practices
strategic planning
tco modelling
project delivery

Join our Downer Professional Services team and play a key role in delivering complex defence and national security projects that safeguard Australia’s future.

  • Conduct independent cost estimation and assurance for new capability investment proposals, ensuring feasibility and affordability.
  • Utilise parametric costing tools such as CCT, ACEIT, or TruePlanning to support project development and capability assessments.
  • Establish and maintain robust costing practices to enable early-stage understanding of cost impacts for proposed manufacturing projects.
  • Support strategic planning activities by contributing to the evaluation of manufacturing capability gaps and investment options.
  • Develop and review Total Cost of Ownership (TCO) models, including those created by external contractors or internal stakeholders.

Requirements

costing tools
cost estimation
tco
nv1 clearance
analytical
work ethic

More than anything, you’ll bring a strong work ethic, a positive attitude, and a commitment to delivering high-quality outcomes for our clients.

Due to the nature of the work, you are required to currently hold and maintain a minimum Negative Vetting 1 or higher Security clearance as required by the Commonwealth. In some instances, compliance with International Traffic in Arms Regulations (ITAR) requirements may also be an inherent requirement.

  • Proficiency in Defence costing tools such as CCT, ACEIT, or TruePlanning, with hands-on experience in parametric cost estimation.
  • Experience in cost estimation within Defence, Security, or Estate sectors, including assessment of estimate completeness and credibility.
  • Strong understanding of Total Cost of Ownership (TCO) methodologies and their application in Defence-related projects.
  • Ability to evaluate cost methodologies and validate cost estimates, ensuring alignment with strategic objectives and financial constraints.
  • Analytical and strategic thinking skills, with the ability to interpret complex data and contribute to capability planning and prioritisation.

Benefits

As a WORK180 Endorsed Employer, we support flexibility that works for your life, inclusive leadership that values your voice, and equitable access to opportunity so you can do your best work and bring your whole self to it.

  • Great perks: Enjoy discounts on healthcare, retail, vehicles, and more through Perks@Downer.
  • Professional development: Access career mapping, accelerated learning programs, and shared learning through our Communities of Practice.
  • Veteran support: Benefit from initiatives like up to 20 days of Reservist Leave to stay connected post-service.

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

  • must hold and maintain a minimum negative vetting 1 (nv1) security clearance.
  • compliance with international traffic in arms regulations (itar) may be required.
Company

Overview

2018
Year of Establishment
The company was established as a separate specialist arm of the Downer Group.
12.6B AUD
Infrastructure Investment
The company is backed by Downer Group’s A$12.6 billion infrastructure arm, enabling complex program delivery.
120M AUD
Annual Revenue
The company generates approximately $120 million in annual revenue from sovereign-impact projects.
  • As a separate specialist arm of the long‑established Downer Group, the firm draws on decades of experience delivering to the Defence sector.
  • Headquartered in Canberra with offices nationwide, it advises on and delivers strategic and technical projects for Defence, national security agencies, and government.
  • It spans cyber‑security, systems and workforce planning, strategic procurement, business case development, and engineering asset management.
  • Recent projects include runway works at RAAF bases Williamtown, Edinburgh, and Richmond, supporting the full defence-capability lifecycle.
  • As one of the few integrated providers in its field, it blends advisory, program, and estate delivery under one roof, preserving project continuity.

Culture + Values

  • Safety first, always.
  • We act with integrity and transparency.
  • We foster a culture of innovation and collaboration.
  • We are accountable for delivering quality outcomes.
  • We respect and value diversity and inclusion in all we do.
  • We embrace continuous improvement in everything we do.
  • We build long-term relationships based on trust and mutual respect.

Environment + Sustainability

2050
Net Zero Target
Aiming to achieve net zero emissions by a specific year, showcasing long-term commitment to environmental sustainability.
  • Focusing on reducing environmental footprint across operations, services, and projects.
  • Adopting sustainable practices and technologies to minimize resource consumption and reduce waste.
  • Contributing to projects improving environmental outcomes, including renewable energy initiatives.

Inclusion & Diversity

  • Committed to fostering an inclusive and diverse workplace where every employee is respected.
  • Has set goals to increase gender balance across leadership roles.
  • Tracks and reports on gender diversity and strives for gender parity in the workplace.
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