Senior Associate Hydrologist

Environmental Science Associates (ESA)

Various, CA, US


ESA is an environmental science, planning, and engineering consulting firm that is a leader in water resources management and ecosystem restoration. Our work integrates rigorous science with practical engineering solutions to address a range of problems affecting environments from the headwaters to the coast. Ranked as a Zweig White Top 10 Best Environmental Firms to Work For, ESA is a 100% employee owned firm with a commitment to the principles of sustainability.

 About the Position:

We are seeking a dedicated and enthusiastic senior level civil engineer/hydrologist to work with our existing team of hydrologists, geomorphologists, civil engineers, scientists and water quality specialists in our Los Angeles or San Diego offices. Responsibilities of this position include hydrologic and hydraulic analysis, quantitative analysis of physical processes, watershed/drainage analysis, water and sediment quality monitoring and assessment, stormwater best management practices design and assessment, report writing, field surveys, and task and budget management, along with other project management in support of multi-objective shore, wetland and creek enhancement and restoration designs and natural resource and watershed management. Typical tasks may include: modeling estuarine, creek and stormwater hydrology and water quality, flood studies and inundation modeling, collecting field data and water quality monitoring, calculating sand transport, estimating sedimentation and erosion rates, mapping erosion and flood hazard zones, preparing report text and graphics, contributing to designs for wetland and creek restoration, inlet management plans, watershed and water resource plans, and shoreline realignment. This position will lead to increasing project management experience over time, but some initial experience is desired. 


You should have a Master of Science or higher degree in civil/hydrology engineering, water resources engineering, physical sciences, or a closely related field with a strong technical foundation in hydrology, hydraulics, stormwater management and/or geomorphology. A Bachelor of Science degree with appropriate experience will be considered. Required technical skills include proficiency in hydrologic and hydraulic analysis. Four or more years of experience in creek/fluvial hydrology/hydraulic, stormwater modeling and analysis, coastal processes, field data collection, Matlab programming, AutoCAD, and/or GIS are desirable. You must have excellent writing skills and the demonstrable ability to verbally communicate effectively with colleagues and clients.

ESA works primarily in California, but has projects throughout the West and beyond; some travel is required.


ESA is owned entirely by its employees, creating a unique ownership culture rooted in a commitment to do work that matters, technical excellence and professional development.  ESA’s comprehensive compensation and benefits program reflects our commitment to our employees. Our benefits include: 401(k) Salary Deferral Plan with company match program, Employee Stock Ownership Plan, medical and dental insurance vision care, paid vacation, sick leave, 9 paid holidays, group term life insurance, short-term and long-term disability insurance, commuter/transit incentives, healthcare and daycare Flexible Spending Accounts (FSA), tuition reimbursement assistance, performance bonus plan, and employee referral bonus program.

ESA is an Equal Opportunity Employer, committed to a diverse and inclusive work environment.  (EOE M/V/F/D)