Principal Engineer – Treatment

West Yost

Principal Engineer managing treatment projects for a water resource management firm. Engaging clients on technical issues and leading engineering designs for water and wastewater solutions.

Posted 7/27/2026full-timeLake Oswego • California, Oregon • 🇺🇸 United StatesLead💰 $140,300 - $180,915 per yearWebsite

About the role

Key responsibilities & impact

Engage with clients and staff on technical issues related to water and wastewater treatment projects.
Responsible for business development and proposal writing.
Manage and engage in project work from planning stages through construction.
Lead engineering designs and prepare various project documentation including reports and specifications.
Establish and foster client relations, meet clients to determine project scope, and estimate requirements.
Develop and maintain client contact before, during, and after project completion.
Maintain workload projections and balance demands among staff.
Recommend staffing needs to senior management and prepare technical reviews of staff work.

Requirements

What you’ll need

Bachelor’s or Master’s degree in Civil/Environmental Engineering or related field.
15+ years’ experience in civil engineering consulting or engineering management.
Excellent writing and communication skills are essential.
PE licensure in the State of California and/or Oregon, or ability to obtain PE licensure within 6 months of hire. PE licensure in other states that firm is actively practicing may also be considered.

Benefits

Comp & perks

medical
dental
vision
flexible spending accounts
health saving 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
pet insurance
support in ongoing education through our 529 college savings plan/student loan repayment program
tuition reimbursement
paid professional memberships
paid training
Leadership Academy programs
milestone anniversary benefits
peer-to-peer recognition programs
potential for employee stock ownership
annual monetary and paid time off bonuses
performance-based bonus eligibility
merit increase eligibility
employee referral bonuses
wellness reimbursement