Meet Gei's

Matthew O’Neil, P.E.

Project Engineer

Mr. O’Neil is an environmental engineer and project manager with sixteen years of environmental consulting experience including nine years managing projects.  In addition, he has ten years of leadership and organizational experience as an officer in the U.S. Army and Army National Guard.  He is a proven project manager and engineer who successfully remediated multiple MGP and industrial sites using a wide range of remedial technologies.  His technical abilities focus on feasibility studies, site remediation, construction oversight, and long term site management including response to damage from natural disasters.  He also has extensive experience performing property assessments, spill response, site investigations, constructability reviews, and cost estimating.

Mr. O’Neil earned a Bachelor’s of Science in Environmental Engineering from United States Military Academy at West Point, New York. He is also the Environmental Disciple Coordinator for GEI’s Glastonbury, Connecticut office.


Providence, Rhode Island


  • Licensed Professional Engineer: CT, NY, RI