I’m proud to share a deeper look into my professional journey and the experiences that have shaped my career in environmental engineering and infrastructure leadership. Over the past 20+ years, I’ve had the opportunity to lead complex capital programs, collaborate with incredible teams, and contribute to sustainable water and wastewater solutions. Here is my biography.

Andrew Nickerson is a seasoned civil engineer and strategic business leader with over 32 years of experience guiding infrastructure projects, mentoring engineering teams, and shaping industry policy. As a Principal at Psomas and President of the ACEC Los Angeles Chapter, he combines technical expertise with a passion for public service, advocating for sustainable development and regulatory innovation across California. Known for his balanced leadership style and clear communication, Andrew brings deep industry knowledge, strategic foresight, and a collaborative spirit to every boardroom and initiative he supports.