Natural Resources Department Manager ECS LtdNatural Resources Department ManagerWaukesha, WisconsinECS is currently ranked #60 in Engineering News-Record’s Top 500 Design Firms (April 2026), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #50 in Zweig Group’s Hot Firm List (May 2025). High school diploma or GED required Bachelor's and/or Master's of Science in Civil Engineering, Environmental Engineering, Natural or Environmental Science, Geology, or other degree relevant to the practice of Environmental Consulting is preferred .