Job Details

Wastewater Process Engineer (Water Environment Services)

Clackamas County, Oregon City, OR

Job - Government

Close Date: 05/28/2020

This position will remain open until filled. The first application review will be April 29th. We reserve the right to close this recruitment at any time on or after that date.


Clackamas County proudly offers an attractive compensation and benefits package, including competitive wages, cost-of-living adjustments, merit increases (for eligible employees) and a robust sick and vacation plan for regular status employees.
We encourage and support employee health and wellness by offering a variety of gym membership discounts, annual wellness fairs and alternative care benefits, so you can customize your wellness needs to fit your lifestyle.
This is a full-time (40 hours per week) County position represented by the American Federation of State County and Municipal Employees (AFSCME).
Annual Salary Range: $99,166 - $126,674
Hourly Pay Rate: $47.67 - $60.90
Work Schedule: This position will work 40 hours per week. Specific hours will be discussed with the selected applicant.
Total Compensation Preview:
• 12 hours of vacation accrued per month
• 8 hours of sick accrued per month
• 9 paid holidays and 1 personal day per year
• Membership in the Public Employees Retirement System (PERS)/Oregon Public Service Retirement Plan (OPSRP)
o The County currently pays the employee's share of the retirement contribution. Employees who are OPSRP members are vested after five years of contributions or when they reach age 65
• Additional Retirement Savings Options that allow you to save additional retirement funds where you have the option to contribute a portion of your earnings on a pre or post-tax basis to a 457 Deferred Compensation Plan
• A Choice of Medical Plans that include chiropractic coverage, alternative care, vision and prescription drug coverage
• A Choice of Dental Plans
• Robust EAP and wellness programs, including gym discounts and wellness education classes
• Longevity pay
• A variety of additional optional benefits
WES Benefits Summary
Learn More About Benefits

Water Environment Services (WES) in looking to for a Wastewater Process Engineer to join its team. This newly created position will be responsible for performing a variety of advanced level professional engineering duties. You will be responsible for researching, developing, and optimizing complex chemical and biological systems, serving as a technical resource to WES Management, investigating, researching, and developing solutions for problems in our four water resource recovery facilities and collection system. Our treatment technologies range from a facultative lagoon to a facility that treats up to 70-mgd and includes a membrane bioreactor (MBR).
• Experienced in wastewater treatment processes including conventional suspended growth and fixed-film reactors, MBRs, aerobic and anaerobic digestion and solids processing
• Independent and self-motivated so that you can identify a need and enjoy digging-in to meet it
• A team player who can work collaboratively with engineering and operations staff
• A compassionate teacher who can teach and break down complex biological and chemical concepts to operations staff
• Energetic and positive with a can-do attitude?
• Passionate about water quality and want to do your part to ensure Clackamas County communities and businesses can live, work and play in a healthy environment?
• Enthusiastic about representing WES to the regional and national wastewater community?
• Focused on solving problems and achieving results?
• A collaborative decision maker who seeks buy-in from District stakeholders?
If you answered YES, please read on!
Your new role will work with both engineering and operations staff to improve and optimize operations; design process data systems and manage process monitoring to assess performance; develop and maintain process model(s) to inform both operational and capital investment decisions.
Ideally you will have excellent communication skills, sound judgment, superb interpersonal skills, interact tactfully with others, have a flexible work style to achieve results, possess a strong attention to detail and enjoy working in a fast-paced, environment. In addition you would employ a hands-on, proactive, and collaborative approach that builds trust and develops positive, open relationships throughout WES.
Required Minimum Qualifications/ Transferrable Skills:*
1. Possession of a Certificate of Registration as a Professional Engineer (P. E.) in the State of Oregon. (Note: Proof of registration will be required prior to the final offer of employment is extended to the selected candidate. Registration in another state where registration was acquired by examination will temporarily fulfill this requirement, provided Oregon registration is obtained within one (1) year of hire.)
2. Bachelor of Science Degree in Civil Engineering, Environmental Engineering or an engineering field, specifically related to wastewater treatment
3. Experience troubleshooting and/or reviewing wastewater treatment processes and facility designs
4. Experience interpreting, preparing and evaluating engineering specifications, plans, and reports that pertain to design and construction projects
5. Thorough knowledge of and experience in applying Wastewater and Civil Engineering regulations, principles, and practices
6. Previous experience conducting technical wastewater process research
7. Experience managing complex engineering projects
8. Strong interpersonal skills that translate into all of the following:
o exercising tact and good judgment, especially while working with people who are experiencing extreme emotions;
o collaborative, team-oriented approach to work;
o effective problem solving skills;
o ability to maintain composure in difficult, stressful and quickly emerging situations;
o ability to handle a wide range of situations and circumstances effectively, positively, and professionally
9. Possession of a valid driver's license or an acceptable alternative method of transportation. Accommodation requests for an acceptable alternative method of transportation will be reviewed on an individual basis in compliance with State and Federal legislation or based on the hiring department business needs. Specific information on the County's driving policy can be found at Learn more about the County's driving policy.
Preferred Special Qualifications / Transferrable Skills:*
1. Masters of Science Degree in Civil Engineering, Environmental Engineering or an engineering field, related to wastewater pumping and treatment
2. Possession of Wastewater Treatment Certificate, Grade Level IV, issued by the State of Oregon Department of Environmental Quality as written in the State of Oregon’s OAR 340-049-0030
3. Knowledge of Oregon specific Wastewater regulations and requirements
4. Experienced in design and/or construction of major sanitary or surface water capital projects primarily around wastewater treatment systems
**For Veterans qualified for Veteran’s Preference: If you believe you have skills that would transfer well to this position and/or special qualifications that relate to this position, please list those skills and/or qualifications in the open-ended question at the end of the application and explain how those skills and/or qualifications relate to this position.

1. Provides training, technical and analytical advice to internal and external stakeholders on the physical, biological, and chemical processes to maximize wastewater process operation efficiency and meet permit requirements; monitors and analyzes process lab data, operator reports, lab reports and energy and chemical usage data.
2. Conducts analyses of conveyance and influent pump station flow reports to characterize conveyance system performance under normal and emergency conditions; advise on metering and instrumentation equipment needs, interacting with technology and operations.
3. Manages the development of complex engineering projects; develops schedules, prepares budget and scopes project. Manages the development and implementation of large scale planning and modeling efforts; serves as engineering liaison with other district sections, departments, and outside agencies.
4. Troubleshoots and/or reviews wastewater treatment processes and facility designs; evaluates, initiates, and revises process technologies; performs initial data gathering, analysis of the existing systems, initial process design, develops and conducts small and large pilot scale testing, plan reviews, startup troubleshooting and long-term optimization.
5. Conducts technical wastewater process research; networks and collaborates with peer technologists to exchange knowledge.
6. Oversees and/or supervises selection and management of engineering consultant contractors; coordinates work with project stakeholders, government agencies, other district sections, contractors, and consultants.
7. Performs data control activities; proofreads and reviews process data reports to ensure accuracy of data entered; balances values and makes necessary corrections or adjustments.
8. Serves as a resource to other District staff, external stakeholders, and consultants regarding the wastewater treatment plant processes.
Link to full classification specification (HERE)

Thorough knowledge of:
Wastewater engineering process, design theory, principles, and practices and their application to a wide variety of treatment facility projects; biological nutrient removal processes; membrane bioreactor (MBR) technology process optimization and troubleshooting; wastewater processes and flow monitoring instrumentation; advanced principles and practices of project development, scheduling, and management; principles and practices of budget preparation and administration; English grammar; algebra, geometry, trigonometry, and calculus; engineering computer software applications; water information management systems (WIMS) platforms; principles and practices of data processing, data entry and retrieval techniques; district, state and federal laws, codes, and regulations impacting permits, construction, contracting, environmental protection, surface water and groundwater; construction, use and interpretation of engineering specifications, plans, maps, reports, and wastewater treatment simulation models; process startup and operation.
Working knowledge of:
Principles and practices of public administration, legislative processes and local government operation; contract and grant preparation, and administration; basic techniques of supervision.
Skill to:
Evaluation of complex wastewater process engineering; modeling wastewater treatment processes; designing and conducting laboratory and pilot scale tests; documenting and preparing reports on the results of testing; preparing, reviewing and evaluating engineering studies and designs; estimating engineering and construction costs; administering contracts; analyzing problems, identifying alternate solutions, projecting consequences of proposed actions and implementing recommendations in support of goals; researching, analyzing, and evaluating new service delivery methods, procedures and techniques; presenting and communicating complex and technical information and data effectively to a variety of audiences, both orally and in writing; lead the work of subordinate personnel; establish and maintain effective working relationships with County staff and the public; listen and comprehend issues and concerns expressed by peers, staff, management, consultants and the public; use of computers and computer software including word processing, spreadsheets, hydraulic modeling, and databases.


Occasional duties in the field require walking, twisting, balancing, and involve exposure to inclement weather, noise, and slippery and/or uneven terrain.


Clackamas County is in a prime location in the Portland, Oregon metropolitan area and is recognized nationally as one of the most livable areas in the United States. Located on the southern edge of the City of Portland and extending to the top of Mt. Hood, Clackamas County is part of a thriving region in the Northwest. It has a population of about 400,000 citizens.
Explore Clackamas County
Clackamas County Core Values
Working for Clackamas County
Recreation, Arts & Heritage
Equity, Diversity and Inclusion
Oregonians are rightfully proud of their commitment to maintaining a clean environment. At Clackamas Water Environment Services (WES), we share that commitment. Our mission is to provide resource recovery and watershed protection services to our community so they can live, work and play in a healthy environment.
What we do:
• We clean more than seven billion gallons of water each year
• We convert materials considered “waste” into valuable byproducts such as natural energy and fertilizer
• We help reduce pollution in local rivers, streams, and wetlands caused by stormwater runoff, the number one source of water pollution in Oregon
• We protect public health by preventing the spread of deadly diseases that come from dirty water
In total, the Districts represent over one billion dollars in infrastructure investments that are managed, operated and maintained to the highest industry standards.
It’s our goal to ensure that our families and neighbors enjoy the benefits of safe, healthy water for generations to come.
Learn more about Water Environment Services.


Clackamas County only accepts fully completed online applications. Failure to complete any part of the application fully may result in your application being disqualified.
Help With Your Application:
Application Process
Help with the Application
If you have any questions or issues you may contact the Department of Human Resources at 503-655-8459 or e-mail us. Our office hours are Monday - Thursday 7:00 a.m. - 6:00 p.m. Pacific Time (closed on Fridays).
Request Veterans' Preference
Learn more about the County's Veterans' Preference
Clackamas County does not offer visa sponsorships. Within three days of hire, applicants will be required to complete an I-9 and confirm authorization to work in the United States.
Clackamas County is an Equal Opportunity Employer. We value diversity, equity, and inclusion as essential elements that create and foster a welcoming workplace. All qualified persons will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, political affiliation, disability or any other factor unrelated to the essential functions of the job.
If you wish to identify yourself as a qualified person with a disability under the Americans with Disabilities Act and would like to request an accommodation, please address the request to the Department of Human Resources prior to the recruitment close date. You may request an accommodation during the online application process.


Certificate of Registration as a Professional Engineer in the State of Oregon. Registration in another state acquired by examination will temporarily fulfill this requirement provided Oregon registration can be obtained within one year of employment.
Possession of Wastewater Treatment Certificate, Grade Level IV, issued by the State of Oregon Department of Environmental Quality as written in the State of Oregon’s OAR 340-049-0030 is preferred, but not required.
Driving may be necessary for County business. For position(s) with occasional/incidental driving, incumbents must possess a valid driver’s license. Accommodation requests for an acceptable alternative method of transportation will be reviewed on an individual basis in compliance with State and Federal legislation. For position(s) with regular driving, incumbent(s) must also possess and maintain an acceptable driving record throughout the course of employment.

Complete details: