Water Resources Engineer

Company: MacKay & Somps Civil Engineers, Inc.
Location: Pleasanton
Posted on: February 21, 2026

Job Description:

Job Description Job Description Please click here to view a list of all current job openings: MacKay & Somps Civil Engineers, Inc. _______________________________________________________________________________________________________________ As a Water Resources Engineer at MacKay & Somps, you’ll apply your technical skills to challenging and rewarding storm drainage, flood control, and water resource projects. You’ll work alongside experienced engineers, gaining exposure to both land development and public infrastructure in California Bay Area and beyond. This is an excellent opportunity to build on your hydrology/hydraulics expertise while expanding your skills in design, modeling, and project coordination. Depending on your experience level, you may work independently or train under the supervision of highly experienced hydrologists. In addition to hydrology and hydraulics, you will also get experience in a wide range of Civil projects including utility infrastructure projects and public and private development. MacKay & Somps Civil Engineers is seeking a Water Resources Engineer to join our Pleasanton, CA office. This position is ideal for engineers with 3–7 years of hands-on experience in storm drain system design, surface hydrology, and hydraulics who are looking to deepen their technical expertise and grow toward a senior-level role. Candidates must have a B.S. in Civil Engineering (or related field) from an ABET-accredited university and be a licensed Professional Engineer (PE) in California. Must be authorized to work in the United States. Responsibilities may include: Designing storm drain systems, open-channel/closed-conduit hydraulics, and surface hydrology solutions Assisting with master drainage plans, flood studies, and stormwater management designs Performing rainfall–runoff simulations and 1-D/2-D hydraulic modeling Supporting drainage and flood control design for both private developments and public infrastructure projects Preparing technical reports, calculations, and supporting documentation Coordinating with internal teams, clients, and public agencies to ensure accurate, efficient project delivery Project management and design of Land Development and Public Infrastructure projects We are looking for candidates with: · 3–7 years of civil engineering experience, with a focus on storm drainage, flood control, and hydrology/hydraulics in California · Proficiency in AutoCAD Civil 3D, Microsoft Word, and Excel · Experience with Army Corps HEC models (HEC-HMS, HEC-RAS), SWMM, XPStorm, Innovyze, and/or WaterCAD · Strong technical writing and verbal communication skills · An eagerness to learn, collaborate, and take on increasing responsibility over time · Experience in land development drainage design and public infrastructure projects is highly desirable We value candidates that fit with our culture of strong work ethic and team camaraderie. Highly proficient engineers with proven experience who thrive in a team-oriented, client driven work environment are strongly encouraged to apply. If you are interested in applying to MacKay & Somps and need a reasonable accommodation to do so, or would like to apply for general consideration, please contact opportunities@msce.com or 925-416-1790. Must be authorized to work in the United States. For a complete listing of all our openings, please visit our careers webpage: https://msce.com/careers/ No recruiters please. About MacKay & Somps Few engineering firms match our track record in California. We are one of the largest and most successful privately held civil engineering firms in NorCal, with offices in Pleasanton (SF Bay Area) and Roseville (Sacramento Valley). Consistently listed in the top 500 design firms in the US by the ENR as we successfully integrate engineering, planning, and surveying expertise to get projects built efficiently and cost effectively. Founded in 1953, MacKay & Somps helped drive growth in Northern California after World War II and we continue that same energy today. Our multi-disciplinary teams provide services from entitlements through construction. MacKay & Somps is an equal opportunity employer. Benefits MacKay & Somps’ goal is to maintain a satisfied and productive team of employees. The keys to reaching that goal are effective leadership, competitive wages and benefits, and close attention to personnel matters. MacKay & Somps offers an excellent compensation and benefits package which includes: · Competitive salary, · Generous bonus structure, · Profit sharing trust/401(k) plan, · Student Loan Paydown program and tuition assistance, · Excellent medical, vision, and dental plans with Company contributions to a health savings account, · Life, AD&D, LTD/STD insurance, · Wellness Reimbursement Program · and more! MacKay & Somps also offers flexible work schedules and an active, high energy work environment with periodic Friday barbeques/lunch gatherings. The company hosts a holiday lunch and an annual companywide dinner party along with other social activities throughout the year. If you are interested in applying to MacKay & Somps and need a reasonable accommodation to do so or would like to apply to our company for general consideration, please contact opportunities@msce.com. Notice to Applicants MacKay & Somps Civil Engineers, Inc. (the Company) collects certain personal information about you. This notice describes the categories of personal information about you. This notice describes the categories of personal information the Company collects and the purposes for which they are used in accordance with the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA). The law provides California applicants and employees with certain rights with respect to the personal information collected from them, including the rights: to delete personal information; to correct inaccurate personal information; to access personal information; to know what personal information is sold or shared and to whom; to opt out of selling or sharing of personal information; to limit use and disclosure of sensitive personal information; and not to be discriminated or retaliated against for exercising rights under the law. The personal information we collect as part of our application process as presented to us either solicited or unsolicited, intentionally or unintentionally, on a resume, in an email, or in another submitted form includes, but is not limited to: identifiers; name; signature; address; telephone number; email address; education and employment history; characteristics of protected classifications such as age, marital status, gender, sex, race, color, disability, citizenship, primary language, immigration status, military/veteran status, etc.; and inferences drawn from any of the personal and sensitive information listed. The Company collects information about you from you; prior employers, references, recruiters, and job-related social media platforms; and third-party companies related to an open job posting. During the recruitment process, the Company uses your personal information strictly for recruitment purposes only. In the event of a presented and accepted offer, applications will be kept as part of the candidate's personnel record. For purposes of the CCPA/CPRA, the Company does not sell or share the personal information or sensitive personal information of job applicants or employees. The Company retains the information it receives about you for a period of ten years, unless a shorter or longer period is required by California or federal law. For inquiries or to submit requests for information, deletion, or correction, or to request a copy of the Company’s privacy policy, please contact: MacKay & Somps Administrative Services 5142 Franklin Drive, Suite C Pleasanton, CA 94588 925-416-1790 adser@msce.com We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Keywords: MacKay & Somps Civil Engineers, Inc., Sacramento , Water Resources Engineer, Engineering , Pleasanton, California