Water Resources Engineer (Hydrology & Hydraulics)

Magrym Consulting, Inc.•San Antonio, TX

11d•Onsite

About The Position

We are seeking a Water Resources Engineer with a focus on Hydrology & Hydraulics (H&H) to support drainage, stormwater, and civil infrastructure design projects. The ideal candidate has strong analytical skills, practical design experience, and the ability to work closely with project managers and engineers to deliver high-quality technical work. This position is NOT REMOTE. This is a hands-on technical position with a clear growth path, including support toward obtaining EIT and PE licensure.

Requirements

Bachelor’s or Master’s degree in Civil Engineering, Water Resources, Environmental Engineering, or a related field.
2–6 years of experience in water resources engineering, H&H analysis, or stormwater design.
Proficiency with:
HEC-RAS
Hydrology methods (Rational, SCS, etc.)
AutoCAD Civil 3D
Understanding of engineering plans, design standards, and technical criteria.
Strong analytical, organizational, and communication skills.
EIT certification or the ability to obtain it within 12 months.

Responsibilities

Perform hydrologic analyses including watershed delineation, runoff estimation, peak flow calculations, and time-of-concentration methodologies.
Prepare stormwater drainage studies in accordance with municipal, county, state, and federal criteria.
Assist in the development of drainage reports, detention/retention sizing, and stormwater mitigation strategies.
Develop and run hydraulic models for storm drain systems, culverts, channels, swales, and open conveyance systems.
Conduct hydraulic grade line (HGL) evaluations, culvert design checks, water surface profile analysis, and flow routing.
Use HEC-RAS (1D/2D preferred) and other modeling tools for stormwater and channel evaluations.
Prepare engineering drawings and plan sets, including:
Build and modify surfaces, pipe networks, and alignments in AutoCAD Civil 3D.
Support coordination between engineering disciplines to ensure complete and constructible designs.
Prepare technical reports, calculation packages, and supporting exhibits.
Participate in quality control processes to ensure deliverables meet design criteria and project requirements.
Communicate effectively with project managers and team members regarding progress, issues, and solutions.