Senior Water/Wastewater Engineer

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

Shape the future of water infrastructure with AECOM.  We’re looking for a driven and collaborative Project Engineer to join our expanding Water/Wastewater team in Buffalo, NY. This role offers the opportunity to work on high-impact projects across the Northeast while enjoying the flexibility and support of a company that values your well-being.

At AECOM, we understand that life doesn’t stop when the workday begins. That’s why we offer  flexible hours, generous time-off policies, and hybrid work options,  empowering you to achieve a true sense of work-life balance while advancing your career.

Your Impact

• Lead and contribute to water, wastewater, and water resources projects in Buffalo and throughout the Northeast.
• Prepare and review design calculations, engineering drawings, specifications, and contract documents.
• Develop technical reports and memoranda that inform and guide project decisions.
• Conduct field investigations and site reconnaissance to support design and planning.
• Assist with project management tasks including scope, schedule, budget tracking, and QA/QC compliance.
• Mentor junior engineers and foster a collaborative, inclusive team environment.
• Support proposal development, cost estimating, and project scheduling.
• Prepare project work plans and health and safety documentation.
• Represent AECOM in client meetings and technical presentations.
• Build strong client relationships through direct, face-to-face engagement.

Qualifications

Minimum

Qualifications

• Bachelor’s degree in Civil or Environmental Engineering with a focus on water, wastewater, or water resources plus six years of experience or demonstrated equivalency of experience and/or education.

Preferred

Qualifications

• 8+ years of experience in water/wastewater projects.
• Master’s degree in Civil or Environmental Engineering.
• Professional Engineer (PE) license in New York or ability to obtain within 6 months.
• Excellent communication and presentation skills.
• Strong technical foundation in civil, water, wastewater, or water resources engineering.
• Strong organizational skills and a proactive, client-focused mindset.
• Proven ability to produce engineering deliverables including reports, drawings, and specifications.
• Demonstrated ability to make independent engineering decisions and lead project components.

Additional Information

Relocation assistance is not available for this position. 

Sponsorship for US employment authorization is not available now or in the future for this position.

THIS POSTING IS FOR A CURRENT VACANCY, AND AECOM INTENDS TO FILL THIS POSITION BY SEPTEMBER 21, 2026.  

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.