Senior Water & Wastewater Engineer

SLR Consulting•Portland, OR

1d•$115,000 - $140,000•Hybrid

About The Position

SLR Consulting (US) is seeking a mid- to senior-level Water & Wastewater Engineer to play an important role in delivering environmental and sustainability services. This position will combine technical expertise with mentoring of junior staff and an eventual leadership role. SLR's water and wastewater engineers work on challenging water treatment projects across North America, specializing in industrial wastewater treatment, mine water management and treatment, pumping and conveyance systems, decentralized water and wastewater infrastructure, and regulatory compliance projects. This role offers the opportunity to work across the full project lifecycle, from evaluating treatment technologies and conducting pilot studies to detailed design, construction support, startup, and system optimization. You will collaborate directly with clients, operators, regulators, contractors, and multidisciplinary engineering teams to solve complex water quality and treatment challenges. You will work directly with a multidisciplinary team of wastewater professionals and collaborate closely with senior engineers, gaining hands-on exposure to treatment design, troubleshooting, permitting, and facility operations across a wide range of industries. As the industrial wastewater practice grows, this position offers a long-term pathway into technical and project leadership, with opportunities to lead projects, mentor junior staff, strengthen client relationships, contribute to business development, and shape the future direction of the practice while developing as a technical expert.

Requirements

Bachelor of Science degree in Environmental, Chemical, or Civil Engineering
6+ years of experience in industrial wastewater treatment engineering
Professional Engineer (PE) licensure
Experience working with regulatory agencies, clients, and contractors
Effective written/verbal communication and organization/analytical skills
Proficient with Microsoft Office suite of software
Proficiency in AutoCAD
Possess a valid driver's license
Willing to travel within the US and Canada by airplane and car, including overnight travel
Logical and methodical problem solving
Attention to detail
Excellent technical writing skills
Strong communication skills and comfort with public speaking
Ability to multitask and manage time effectively while working concurrently on different projects
Ability to learn new skills
Understand how to conduct internet and library research
Ability to work well independently and as part of a team
Understanding of budgets and deadlines
Self-motivated, requiring limited oversight on common tasks
Pro-active in seeking work tasks

Responsibilities

Evaluate industrial, mining, municipal, and commercial wastewater treatment challenges and develop practical, cost-effective treatment solutions.
Perform process evaluations, feasibility studies, bench-scale testing, and pilot studies to assess treatment technologies and optimize system performance.
Develop engineering designs for treatment systems, including process flow diagrams, hydraulic calculations, equipment selection, piping layouts, and technical specifications.
Assess and troubleshoot existing treatment systems, identify operational improvements, and support facilities in resolving treatment and compliance issues.
Participate in field investigations, site assessments, construction observation, startup, commissioning, and performance optimization of treatment facilities.
Work directly with treatment plant operators and facility personnel to understand operational challenges and translate those needs into engineering solutions.
Support water quality evaluations, discharge permitting projects, mixing zone analyses, and regulatory compliance assessments.
Interpret and apply federal, state, provincial, and local regulatory requirements to client projects.
Review operating data and treatment performance information to evaluate compliance, identify trends, and recommend process improvements.
Coordinate with CAD designers and multidisciplinary engineering teams to develop plans, drawings, and construction documents.
Lead technical tasks and provide guidance and mentoring to junior engineering staff.
Develop and maintain long-term client relationships by serving as a trusted technical advisor on water and wastewater issues.