Water Resources Engineer – Storm Drain & Hydrology Design

MacKay & Somps Civil Engineers, Inc.; Pleasanton (CA); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Profit sharing

Tuition assistance

Excellent medical, vision, and dental

Health savings account contributions

Wellness Reimbursement

401(k) plan

Job summary

MacKay & Somps Civil Engineers, Inc. in Pleasanton, CA is seeking a Water Resources Engineer with 3–7 years of experience in storm drainage, surface hydrology, and hydraulics to grow professionally within our land development and public infrastructure portfolios.

You will design storm drainage systems, perform rainfall-runoff simulations, and use HEC models, SWMM, and other tools while coordinating with multidisciplinary teams and agencies. This role offers growth toward senior responsibilities.

Qualifications

• Bachelor of Science in Civil Engineering (ABET-accredited).
• Licensed Professional Engineer (PE) in California.
• 3–7 years of hands-on civil engineering experience in storm drainage, hydrology and hydraulics in California.
• Authorized to work in the United States.

Responsibilities

• Design storm drainage systems, open-channel/closed-conduit hydraulics, and surface hydrology solutions.
• Assist with master drainage plans, flood studies, and stormwater designs.
• Perform rainfall–runoff simulations and 1‑D/2‑D hydraulic modeling.
• Support drainage and flood control design for private developments and public infrastructure.
• Prepare technical reports, calculations, and supporting documentation.
• Coordinate with internal teams, clients, and public agencies for efficient project delivery.
• Project management and design of land development and public infrastructure projects.

Skills

Water resources engineering

Hydrology & hydraulics

Project coordination

Technical writing

CA Bay Area project experience

Education

B.S. Civil Engineering (ABET-accredited)

Tools

AutoCAD Civil 3D

HEC-HMS

HEC-RAS

SWMM

XPStorm

Innovyze

WaterCAD

MS Word

Excel

Job description

MacKay & Somps Civil Engineers, Inc. in Pleasanton, CA is seeking a Water Resources Engineer with 3–7 years of experience in storm drainage, surface hydrology, and hydraulics to grow professionally within our land development and public infrastructure portfolios.

You will design storm drainage systems, perform rainfall-runoff simulations, and use HEC models, SWMM, and other tools while coordinating with multidisciplinary teams and agencies. This role offers growth toward senior responsibilities.