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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 Project Accountant - Cost Analyst I located in San Diego, CA to support project financial operations and contract compliance activities within our project accounting and cost management team. This role is responsible for reviewing and validating Time & Material (T&M) reports to ensure accuracy, completeness, and compliance with contractual requirements and established accounting standards.
The successful candidate will perform detailed audits of labor, materials, rates, and supporting documentation while partnering closely with project teams, operations staff, and accounting personnel. This position plays an important role in maintaining financial accuracy, supporting client invoicing processes, and ensuring adherence to project and contractual requirements across active programs and projects.
This opportunity is well-suited for a detail-oriented accounting or cost controls professional who thrives in a structured, deadline-driven environment and enjoys analytical review work, cross-functional collaboration, and process accuracy.
Key Responsibilities

• Review and validate Time & Material (T&M) reports and supporting documentation for accuracy, completeness, and contractual compliance.
• Audit labor rates, material charges, and billing documentation to ensure alignment with contract terms and approved project requirements.
• Verify supporting backup documentation and identify discrepancies, omissions, or inconsistencies requiring resolution.
• Assist with project accounting activities related to cost tracking, reporting, and financial documentation.
• Coordinate with project teams, operations personnel, and accounting staff to resolve billing and reporting issues.
• Support compliance with internal financial controls, accounting procedures, and client-specific contractual requirements.
• Maintain organized financial records and documentation in accordance with company standards and audit requirements.
• Prepare and maintain spreadsheets, tracking logs, and reporting summaries using Microsoft Excel.
• Contribute to process improvements that enhance reporting accuracy, efficiency, and consistency.
• Perform assignments independently while effectively managing priorities and deadlines.

Qualifications
Minimum Requirements

• High School diploma + 2 years of relevant experience or demonstrated equivalency of experience and/or education.

Preferred Qualifications

• Knowledge of accounts payable processes, project accounting, cost control, and financial reporting practices.
• Experience reviewing and validating Time & Material (T&M) reports for rate accuracy, contractual conformity, and supporting documentation completeness.
• Understanding of accounting principles, financial controls, and basic auditing practices.
• Strong proficiency with Microsoft Excel, including spreadsheet tracking and reporting functions.
• Highly detail-oriented with strong analytical and organizational skills.
• Ability to work independently with minimal day-to-day supervision while managing multiple priorities.
• Strong communication and collaboration skills with the ability to work effectively across project and accounting teams.
• Experience supporting projects in engineering, construction, infrastructure, professional services, or related industries preferred.
• Familiarity with ERP systems, project financial systems, or accounting software platforms is preferred.

Additional Information

• Sponsorship is not available for this position.
• This position may be performed in a hybrid, office-based, or project support environment depending on business needs.

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.