Meghan Holder has experience as an environmental engineer and lab technician. She has conducted field sampling of water and soil for oil and gas sites in Texas and Louisiana, managed shipping and testing requirements with labs, overseen remediation projects, and ensured regulatory compliance. As a lab tech, she performed lab maintenance, processed biological samples, conducted microscopy and cytometry analyses, and cared for research animals. She has authored or co-authored several publications on her research involving fish in the Amazon and Mississippi River.