Associate - Senior Engineer - Water Systems & Wastewater Collection Systems Planning
Listed on 2026-07-01
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Engineering
Environmental Engineer
Associate
- Senior Engineer – Water Systems & Wastewater Collection System Planning
The Associate
- Senior Engineer role will contribute to the development of the firm's Water Business Sector (which encompasses water system, water resource, recycled water, and collection system planning). Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments, alternatives analysis and development of capital improvement plans. Candidates with a desire to develop their career toward technical leadership, project management, & client service engagement are ideal.
Essential Duties
- Serving as a technical staff member in wastewater collection system hydraulic evaluations utilizing a variety of commercial hydraulic modeling software programs (e.g., Infoworks ICM, Aqua Twin Sewer, Sewer Gems, etc.).
- Working as part of a team on projects throughout California and Oregon.
- Analyzing various types of flow, demand, population, water quality, and facilities condition data.
- Assessing collection system regulatory compliance.
- Developing wastewater collection system capital improvement programs.
- Preparing technical reports and master plans.
- Training and mentoring staff on wastewater collection evaluation and assessments.
- Serving as a deputy project manager or project manager directing the hydraulic modeling and master planning work of junior level to associate level staff engineers.
- Interacting directly with clients and providing excellent client service.
- Assisting with marketing activities and proposal development when needed.
Required Qualifications
Bachelor's degree in Civil/Environmental Engineering.
- 6 - 12+ years of experience with Wastewater Collection System Planning and Hydraulic Modeling.
- Excellent verbal and written communication skills.
- Experience with CAD, GIS, Microsoft Access, 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.
Preferred Qualifications
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 overnight assignments.
Travel Requirements
* This position may require travel to other offices and/or client offices.
A Little About the West Yost Life
You 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 & middlers group), and mentorship and leadership programs.
We support and foster your career success and encourage you to be in control of your future with us.
At West Yost, we make space for connection across the firm. Each month, we hold an all-hands meeting that bring together team members from every location, including those working remotely, to stay aligned and engaged. Individual sectors and teams also hold their own monthly meeting. At the local level, our offices host gatherings, from camping trips and river rafting to community events and celebrations.
Once a year, we come together in person for our Annual All Staff event, a firmwide experience focused on learning, networking, and building relationships across teams. That evening, we continue our longest-standing tradition, the Duck Dinner, where West Yosters are encouraged to bring a guest and enjoy a night of great food, connection, and entertainment.
We work hard, and we place equal value on having fun.
Our commitment to quality begins with our hiring practices. We employ the most talented team members in our industry from all backgrounds. We are highly selective of the individuals we choose to represent the firm, seeking only those individuals whose technical abilities and commitment to client service matches our vision for excellence. We are dedicated to our number one asset, our employees.
Because we are employee-owned, we are responsible for and…
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