Senior - Principal Engineer - Water Systems & Water Supply Planning

Overview

We are a water-focused engineering consulting firm, certified as a Great Place to Work® based on feedback from our community of over 260 team members. We strive to be the water firm of choice for both our clients and our team, offering services in groundwater, water supply, water and wastewater treatment, water and wastewater infrastructure, stormwater, recycled water, construction management, and operations technology from multiple locations in the west.

Our long-term relationships are based on integrity, partnership, and high-value solutions. In 2026 and beyond, West Yost is advancing water resources for future generations and living our core values every day.

Compensation range: $119,040 to $192,420. Based on our Irvine, CA office location. West Yost uses geographic salary differentials that would apply for candidates in other regions.
LOCATION(S):
We will consider any of our CA or OR office locations. ()

We provide a comprehensive array of valuable benefits to protect your health, your family, and your way of life. Benefits include medical, dental, vision, flexible spending accounts, health savings accounts (with West Yost contribution), paid vacation, paid sick leave and holidays, two employee assistance programs, travel assistance program, 401(k) profit sharing with employer match, leaves of absence with additional supplemental paid time off, parental leave, life and AD&D insurance, short-term and long-term disability insurance, and pet insurance.

SENIOR - PRINCIPAL ENGINEER - WATER SYSTEM & WATER SUPPLY PLANNING

Description
:
The Senior - Principal Engineer contributes to the development of the firm’s Water Business Sector (water system, water resource, stormwater, recycled water, and collection system planning). Previous experience with Water System Planning/Hydraulic Modeling is required. Candidates with a desire to develop their career toward technical leadership, client service management, and/or regional/sector management are ideal.

• Serving as a technical leader in water distribution system hydraulic evaluations utilizing a variety of commercial hydraulic modeling software programs (e.g., Info Water Pro, Open Flows Water
  
  GEMS, Aquanuity, etc.).
• Working as part of teams on projects throughout California and Oregon with an emphasis on Southern California-based projects and clients.
• Analyzing water use, population, water quality, and facilities condition data.
• Evaluating water supply availability.
• Developing water supply and water system capital improvement programs.
• Preparing technical reports and master plans.
• Serving as a project manager directing the hydraulic modeling and master planning work of senior level, as well as other staff engineers.
• Providing QA/QC review on the work of others in the water planning team.
• Interacting directly with clients and providing excellent client service.
• Assisting with marketing activities and proposal development when needed.

• Bachelor’s degree in Civil/Environmental Engineering.
• 10+ years of experience with Water System Planning and Hydraulic Modeling.
• Excellent verbal and written communication skills.
• Experience with CAD, GIS, and hydraulic modeling software (e.g., Info Water Pro).
• PE licensure in the State of California. PE licensure in other states in which the firm is actively practicing may also be considered.

• Master’s degree in Civil/Environmental Engineering.
• Proven ability to manage multiple priorities and deadlines.
• Ability to process accurate engineering calculations unaided and prepare reports.
• Proven ability to summarize technical information using appropriate grammar, punctuation and spelling for concise reader-friendliness and clarity.
• Experience with direct client interaction and proposal writing.
• High proficiency with Info Water PRO; experience with Aquanuity software.
• Maintaining professional competency may require attending education classes and seminars, reading professional publications, and attending professional society meetings.
• This position may require out-of-office travel with occasional evening and…