Senior Process Mechanical Engineer - Wastewater

Senior Process Mechanical Engineer - Wastewater Job Description Posted Thursday, February 19, 2026 at 11:00 AM 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. KJ is seeking a collaborative Senior Process Mechanical Engineer to join our growing Wastewater Infrastructure team to projects company wide. The Senior Process Mechanical Engineer is responsible for ensuring the wastewater treatment processes are efficient, compliant with regulations and environmentally responsible. Key Responsibilities: This position will function as the technical expert focusing on wastewater process projects across the organization. This position will apply advanced engineering techniques and analysis for solution development, effectively communicate with all stakeholders and levels, and will manage projects focused on wastewater process. This position will be responsible for projects focused on detailed design and project management of small to large civil infrastructure projects including, but not limited to, wastewater, sanitary sewer collection systems, pump stations and wastewater treatment processes and plants. Design and optimize wastewater treatment processes, including physical, chemical and biological treatment systems, to maximize efficiency and minimize environmental impact. Manage projects from the planning phase through construction. Supporting business development and helping to identify and develop new water/wastewater pursuits. Collaborate with our existing contacts in the wastewater industry to identify and develop new business opportunities. Qualifications: 7+ years of progressive relevant wastewater experience Bachelor's or Master's degree in Civil, Environmental or Mechanical Engineering. Advanced degree strongly preferred Professional Engineer (PE) license required (ideally California, Oregon, Washington or Colorado with willingness and ability to add additional states) Wastewater process experience with strong technical knowledge of the wastewater industry Demonstrated ability to provide excellent client service and interact positively with clients Experience with business development and sales Excellent written and oral communication skills Design‑Build experience a plus but not required Kennedy Jenks supports a healthy work-life balance and utilizes a hybrid model of home and office work to empower our people to thrive and achieve their full potential. Salary range for this position is anticipated to be $150,000 to $181,000 , and may vary based upon education, experience, qualifications, licensure/certifications and geographic location. Benefits summary: 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. #LI-Hybrid 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. #J-18808-Ljbffr