Job Description

AECOM is seeking a Sustainability Intern to be based in Orange, CA.

This position is expected to begin in May/June 2026 and extend throughout the summer.

Internships at AECOM offer students in undergraduate and graduate programs the opportunity to gain valuable hands-on experience in engineering, design, and infrastructure projects that make a real-world impact. Interns work with cutting-edge technology, learn industry best practices, and collaborate with experienced professionals in a globally recognized firm. The program fosters both technical and professional skill development while providing networking opportunities that can enhance future career prospects. Additionally, AECOM’s dedication to innovation and sustainability enables interns to contribute to meaningful projects that help shape communities and the built environment.

The AECOM Sustainability Internship offers students and recent graduates a hands-on learning experience within a dynamic, fast-paced consulting and advisory practice. This highly competitive program provides leadership exposure, professional development, and skill-building opportunities. The position is part of the High-Performance Buildings and Communities practice area within AECOM’s Advisory Business Line.

The internship is structured to give participants the opportunity to work alongside junior staff and senior managers on challenges and opportunities related to sustainable buildings and infrastructure, climate advisory services, decarbonization/energy planning, and performance-led design. Interns will gain experience across a diverse array of projects.

The responsibilities of this position include, but are not limited to:

• Performing entry-level work on a variety of assignments designed to develop professional skills, requiring the application of standard techniques and procedures.
• Following instructions and completing tasks assigned by senior staff.
• Meeting required schedules while producing high-quality work.
• Exercising limited judgment on work details and contributing to preliminary methodology decisions.
• Supporting a broad range of sustainability and high-performance initiatives, including third-party certifications (e.g., LEED, Envision, WELL), sustainability and decarbonization strategy development, compliance research (e.g., CALGreen), energy planning and performance led design efforts, and data analytics or modeling tasks related to building and infrastructure performance.
• Working alongside team members to collect data, conduct research, organize information, and synthesize findings.
• Preparing and presenting results and professional recommendations in written reports or presentation formats.

Qualifications

Minimum Requirements:

• Currently pursuing a Bachelor’s degree or higher in engineering, architecture, building physics, environmental science, climate, sustainability, or a related field , and must have completed at least two years of study. Candidates who have graduated with a bachelor’s degree and plan to continue with the Master’s degree are eligible to apply for these positions. Graduates must have been enrolled in their bachelor’s degree in the most previous school term with an interest in pursuing an advanced degree in the same or similar discipline at the conclusion of the internship.

Preferred Qualifications:

• Familiarity with green building and infrastructure rating systems (e.g., LEED, Envision, WELL).
• Understanding of low- and zero c‑arbon building strategies and technologies.
• Experience with energy modeling and/or daylighting analysis.
• Currently in the final year of a Bachelor’s or Master’s program, or a recent graduate in a relevant field.
• Demonstrated ability to think critically, analyze information, and synthesize technical data into clear written deliverables.
• Strong verbal and written communication skills, including the ability to articulate issues and challenges effectively.
• Proficiency with Microsoft Office tools (Word, Excel, PowerPoint).
• Interest in contributing to a collaborative, multidisciplinary team environment.
• Strong problem-solving, analytical, and research abilities.
• A genuine passion for sustainability and climate focused‑ work.

Additional Information

• Relocation assistance is not available for this position.
• Sponsorship for U.S. work authorization is not available for this position.

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.