Senior Water/Wastewater Engineer

Kennedy Jenks; Seattle (WA); Hybrid; USD 160,000 - 210,000; Full time

Benefits offered by this job

Comprehensive benefits package

401k with bonus opportunities

Tuition reimbursement

Job summary

Kennedy Jenks seeks a Senior Water/Wastewater Engineer for their team in Seattle, Washington. Ideal for an experienced engineer, this role involves providing technical leadership in water and wastewater projects, including process systems and treatment facilities.

Responsibilities include leading technical problem-solving efforts, mentoring staff, and ensuring compliance with regulations. The position offers a hybrid work model and a competitive salary range of $160,000 to $210,000.

Qualifications

• 10+ years of experience in water/wastewater engineering.
• Proven ability to lead design and problem-solving efforts.
• Strong mentorship skills for junior engineers.

Responsibilities

• Serve as a senior technical resource on water and wastewater projects.
• Lead complex design and technical problem-solving efforts.
• Provide QA/QC and technical review of designs and specifications.
• Collaborate with multidisciplinary teams for effective designs.
• Mentor and provide guidance to junior and mid-level engineers.
• Support client and regulatory communications with technical expertise.
• Stay current on industry best practices and integrate them into projects.

Skills

10+ years of relevant water/wastewater engineering experience

Strong analytical, problem‑solving, and technical judgment skills

Excellent written and verbal communication skills

Ability to mentor and guide junior engineers

Education

BS or MS in Civil, Environmental, or related engineering degree

Professional Engineer (PE) license required in Washington

Job description

Founded in 1919, KJ has always looked to the future. With a talented team of professionals and a culture of continuous improvement, we deliver exceptional engineering, environmental consulting, and construction management services, with a focus on innovation and sustainability. Using advanced analytics, technology, and tools, KJ improves designs, reduces risk, and finds better ways to deliver projects from planning through construction. KJ is at the forefront of developing sustainable solutions for clients, including green infrastructure design, strategies to reduce energy use and environmental impacts, award‑winning water reuse projects, and efficient construction management practices that ensure quality, safety, and on‑time delivery. We are known for our dedication to industry‑leading client service and tailored solutions.

Kennedy Jenks is seeking a Senior Water/Wastewater Engineer to join our growing Water and Wastewater Infrastructure team in Washington. This role is ideal for an experienced engineer who wants to provide technical leadership across water and wastewater projects, including process systems, lift and pump stations, collection and distribution systems, and treatment facilities. The Senior Engineer will be a key technical resource, collaborating with project teams, mentoring junior staff, and ensuring the highest quality technical solutions.

Key Responsibilities

• Serve as a senior technical resource on water and wastewater projects, including process, collection, conveyance, pump stations, and treatment facilities.
• Lead complex design and technical problem‑solving efforts, applying engineering expertise to develop practical, code‑compliant, and efficient solutions.
• Provide QA/QC and technical review of designs, calculations, drawings, and specifications prepared by staff engineers and project engineers.
• Collaborate with multidisciplinary teams to ensure designs are constructable, cost‑effective, and aligned with client and regulatory requirements.
• Mentor and provide guidance to junior and mid‑level engineers, supporting professional growth and development.
• Support client and regulatory communications by providing technical expertise and contributing to presentations and technical discussions.
• Stay current on industry best practices, emerging technologies, and regulatory changes, and integrate into project solutions.

Qualifications

• 10+ years of relevant water/wastewater engineering experience
• BS or MS in Civil, Environmental, or related engineering degree
• Professional Engineer (PE) license required in Washington or ability to obtain within 6 months
• Broad experience across water and wastewater systems, including process, pump stations, lift stations, pipelines, and treatment facilities
• Strong analytical, problem‑solving, and technical judgment skills
• Demonstrated ability to mentor and guide junior engineers
• Excellent written and verbal communication skills and ability to collaborate effectively in teams
• Willingness to travel within Washington for project sites, client meetings, and coordination with other Kennedy Jenks offices

Kennedy Jenks supports a healthy work‑life balance and utilizes a hybrid model of home and office work, with a minimum of two days per week in the office. This approach empowers our people to thrive, collaborate, and achieve their full potential.

Salary Range

For this position is expected to be between $160,000 and $210,000, and may vary based upon education, experience, qualifications, licensure/certifications, and geographic location. This position is eligible for performance and incentive compensation.

Benefits Summary

Kennedy Jenks offers a comprehensive benefits package, including medical, dental, vision, life and disability insurance, 401k, bonus opportunities, tuition reimbursement, professional registration support, a competitive PTO and holiday plan, and other benefits and programs.

Kennedy Jenks is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, sex, pregnancy and pregnancy‑related conditions, sexual orientation, gender identity, national origin, age, marital status, disability, citizenship status, genetics, protected veteran status, or any other characteristics protected by applicable law.