Under general supervision of a registered professional engineer, creates basic to moderate complexity water and waste water treatment facilities, water and sewer systems, pipelines, pump stations, remediation sites, solid waste facilities, etc. engineering-related designs to meet client project requirements. Reviews draft designs and reports for compliance with federal, state and local regulations. Ensures that firm policies and practices are followed on all designs. Performs site reviews and studies, as needed, to ensure designs are aligned with location specifications. Updates design requirements as necessary. Performs water quality analyses and modeling. Contributes to firm's TKM by developing white papers and technical design documentation of new or special case designs, studies, etc. Submits technical papers and designs for publishing to technical journals. Performs other duties as required. May create or work with a team to create a poster or other presentation material for a conference. Note: All engineering-related work is reviewed and approved by a registered professional engineer.