Civil CAD Designer III

Ardurra is seeking an experienced Senior CAD Designer III to join our Public Works team in San Antonio, TX!

This role supports municipal utility and infrastructure projects, with a strong focus on water, wastewater, sanitary sewer, force mains, and storm drainage systems serving treatment facilities and municipal systems.

Ardurra is a multidisciplinary civil engineering services firm delivering practical, innovative solutions to public-sector clients.

Our San Antonio team works closely with San Antonio Water System (SAWS), the City of San Antonio, and other local agencies on critical public infrastructure projects that directly impacts over two million members of the San Antonio and surrounding community!

Primary Function:

The Senior CAD Designer III performs advanced civil drafting and design tasks in support of municipal utility and public works projects in the San Antonio area.

This role works closely with engineers to translate hydrologic and hydraulic (H&H) analyses into clear, constructible plan sets for sanitary sewer, water pipelines serving water and wastewater treatment facilities, force mains, and storm drainage systems.

While some coordination with roadway infrastructure may occur, this position is primarily utility-focused rather than TXDOT or roadway-driven.

Primary Responsibilities:


* Prepare advanced civil design drawings for municipal water, wastewater, sanitary sewer, force mains, and storm drainage systems, including plan-and-profile sheets, details, and quantities


* Develop design deliverables using GEOPAK and OpenRoads Designer, primarily for utility, conveyance, and drainage infrastructure (AutoCAD Civil 3D a plus)


* Apply SAWS and City of San Antonio standards and design criteria; limited TxDOT coordination as required


* Support the preparation of plan and profile drawings informed by hydrologic and hydraulic (H&H) analyses provided by engineering staff


* Coordinate utility layouts with existing infrastructure, drainage systems, and limited roadway elements as needed


* Provide technical guidance and quality control review for junior designers and drafters


* Interface with project engineers, project managers, and municipal clients to support project delivery


* Assist with constructability reviews, quantity takeoffs, estimates, and preparation of technical documents


* Maintain CAD standards, file organization, and data integrity throughout the project lifecycle

Education & Qualifications:


* High school diploma or equivalent required; Associate’s degree or Technical Certificate preferred


* 8-10+ years of total related experience, with 5-7 years of design experience is strongly preferred


* Strong emphasis on municipal utility and public works projects


* Demonstrated experience supporting SAWS or similar municipal water/wastewater agencies strongly preferred


* Proficiency with MicroStation, GEOPAK and/or OpenRoads Designer for utility, sanitary sew...