> Markdown version of [/jobs/ext/131004-senior-principal-engineer-wastewater-collection-system-planning](https://www.wearedevelopers.com/jobs/ext/131004-senior-principal-engineer-wastewater-collection-system-planning). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior - Principal Engineer - Wastewater Collection System Planning - **Company:** WEST Inc - **Location:** Medford, OR, United States (Remote available) - **Experience:** Expert - **Salary:** $101,325.0 - $180,915.0 - **Contract:** Permanent contract - **Skills:** Microsoft Access, Computer-Aided Design, Geographic Information Systems, Network Planning and Design - **Published:** May 19, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=5b802ffd0d948241 ## About the Role The Senior - Principal 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, client service management, and/or regional/sector management are ideal., * Bachelor's degree in Civil/Environmental Engineering. * 8+ 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., InfoWater 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 InfoWater 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. ## Description * Serving as a technical leader in wastewater collection system hydraulic evaluations utilizing a variety of commercial hydraulic modeling software programs (e.g., Infoworks ICM, AquaTwin Sewer, SewerGems, 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 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 wastewater collection system planning team. * Interacting directly with clients and providing excellent client service. * Assisting with marketing activities and proposal development when needed. ## Related Videos - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [Blazing Accessibility Basics](https://www.wearedevelopers.com/videos/568-blazing-accessibility-basics) - [AI beyond the code: Master your organisational AI implementation.](https://www.wearedevelopers.com/videos/1248-ai-beyond-the-code-master-your-organisational-ai-implementation) - [Wardley Maps for Software Developers](https://www.wearedevelopers.com/videos/665-wardley-maps-for-software-developers) - [WeAreDevelopers LIVE - Gaps in CSS, EU Accessibility Act and more!](https://www.wearedevelopers.com/videos/1314-wearedevelopers-live-gaps-in-css-eu-accessibility-act-and-more) - [The future of automotive mobility: Upcoming E/E architectures, V2X and its challenges](https://www.wearedevelopers.com/videos/374-the-future-of-automotive-mobility-upcoming-e-e-architectures-v2x-and-its-challenges) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [What Makes WeAreDevelopers World Congress Different From Every Other Tech Event?](https://www.wearedevelopers.com/magazine/701-what-makes-wearedevelopers-world-congress-different-from-every-other-tech-event) - [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023)