Associate Engineer - Treatment
Listed on 2026-07-17
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Engineering
Environmental Engineer, Water Engineer, Water Management, Environmental Compliance
Who We Are:
West Yost is a water resource management and engineering firm focused exclusively on water. Since our founding in 1990, we have partnered with public agencies including cities, counties, utilities, and water districts to plan, design, and deliver water, wastewater, and stormwater solutions that support safe, reliable, and resilient communities.
Our team of more than 265 professionals brings together expertise in groundwater, water supply, treatment, infrastructure, recycled water, stormwater, construction management, and operations technology. We support projects from early planning and permitting through design and construction and complement our engineering services with program management and public outreach to help clients move work forward and engage their communities.
We are proud to be certified as a Great Place to Work, and to be recognized among Fortune’s Best Workplaces in Consulting and Professional Services from 2023 to 2025, as well as a top-ranked firm in the AEC Advisors Diversity Index. At West Yost, we are committed to being the water firm of choice for our clients and our team, advancing water resources for future generations through strong partnerships, practical solutions, and a shared commitment to quality.
Compensation Range: $105,230 - $148,560. Based on our Sacramento, CA office location. (West Yost uses geographic salary differentials that would apply for candidates in other regions).
Status:
Full-time, Exempt
Location(s):
Preferred locations are Sacramento, CA, Concord, CA, or Lake Oswego, OR ().
This is a Hybrid role with a minimum of 3 days in the office and optional 2 days remote.
ASSOCIATE ENGINEER – TREATMENT DESCRIPTIONThe Associate Engineer – Treatment is to participate in our Water/Wastewater Treatment group. Expertise is desired in planning and design of water and/or wastewater treatment and recycled water systems. This role will contribute to the development of the firm’s Treatment practice and have client involvement. This is a mid-level position.
Other duties include:
- Preparing plans, specifications, calculations, equipment evaluations, preliminary layouts and technical reports for water and/or wastewater treatment and recycled water system projects.
- Deciding on the most appropriate engineering techniques and sequences of activities for each project stage, with input from project managers.
- Completing evaluations of water quality data for treatment facilities.
- Developing technical writing and correspondence including preparation of technical memoranda, preliminary design reports, master plans and other reports related to the planning and design of treatment systems.
- Making estimates for timescales and costs ensuring plans meet the client’s specifications.
- Assisting senior-level engineers with the preparation of proposals.
- Coordinating project assignments with other EITs, engineers and technicians on the project team.
- Researching regulatory, legislative, or code issues with City, County, and State agencies.
- Attending meetings and interacting with clients.
- Bachelor’s or Master’s degree in Civil or Environmental Engineering, or related field.
- 5+ years of experience preferred.
- Knowledge of design of water and/or wastewater treatment plants and recycled water systems.
- Positive and clear written and verbal communication practices are essential for success in this position.
This position may require travel to other offices and/or client offices.
A Little About the West Yost LifeYou will experience many opportunities to grow and develop professionally with your colleagues through collaborative in-person work experience, knowledge sharing, and mentorship opportunities. We also offer hybrid and flexible work schedules to our employees to help promote and encourage a healthy work/life balance. All of our team members have access to local and company-wide events, our Diversity, Equity and Inclusion Workgroup, Culture Workgroup, Wellness Workgroup, book clubs, charitable giving and community service, firm-wide resources, peer groups (young professionals &middles;
middlers group), and mentorship and leadership programs. We support and…
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