Senior Cost Estimator

Company Description

Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

Job Description

AECOM is seeking a Senior Cost Estimator to help turn hurricane damage assessments into sound repair decisions for federal facilities in Kauai, Hawaii. Scopes may range from emergency weatherproofing and water damage mitigation to building envelope, utility, and infrastructure restoration. You will develop estimates while field information is still evolving, test quantities and pricing against site conditions, and explain the cost effects of access, logistics, schedule, and uncertainty. Your work will give project leaders a defensible basis for comparing options, planning procurement, and managing changes as repairs advance.

This role will require an onsite presence in Kauai, Hawaii and is eligible for per diem related expenses when appropriate.

Key Responsibilities

• Lead preparation of conceptual, detailed, and independent cost estimates for facility and infrastructure repairs.
• Develop quantity takeoffs, labor and equipment assumptions, unit pricing, and subcontractor pricing analyses.
• Assess scope, schedule, access, logistics, escalation, and contingency impacts on project cost.
• Review drawings, field reports, repair narratives, and contractor proposals for cost completeness.
• Document estimate bases, assumptions, exclusions, risks, and changes between estimate versions.
• Coordinate with engineers, construction managers, schedulers, and subcontractors to validate scope and pricing.

Qualifications

Minimum Requirements

• Bachelor’s degree and 8+ years of developing construction cost estimates for complex facility or infrastructure projects or demonstrated equivalency of experience and/or education.
• A valid driver’s license is required, along with the ability to pass a Motor Vehicle Records (MVR) check in accordance with company policy.
• Due to the nature of the work, US Citizenship is required.

Preferred Qualifications

• 16+ years of developing construction cost estimates for complex facility or infrastructure projects.
• Experience estimating federal construction, emergency repairs, or building restoration.
• Experience with cost estimating software and recognized cost databases.

Additional Information

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com.

What makes AECOM a great place to work

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity.

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.

Summary

• Type: Full-time
• Function: Strategy/Planning
• Experience level: Mid-Senior Level
• Industry: Construction