Senior Water/Wastewater Treatment Engineer

Company: Ardurra Group, Inc.
Location: Mesa
Posted on: February 15, 2026

Job Description:

Job Description Job Description Ardurra is looking to hire an experienced Senior Water/Wastewater Treatment Engineer to join our team in our Phoenix, AZ office! Our innovative water and wastewater engineers collaborate closely with clients to plan, design, permit, and construct systems that address their needs comprehensively. This approach allows our clients to make smarter investments, resulting in lower life cycle costs and additional benefits. As a recognized leader in the Southwest and national water industry, our projects encompass treatment and infrastructure initiatives for municipal and institutional clients. Our work ranges from drinking water supply to water reuse and wastewater management. We have the capability to support projects of all sizes within a flexible and innovative team environment. Primary Function: This position is responsible for planning, designing, and managing multidisciplinary projects related to water and wastewater treatment for municipal and institutional clients in the region. The individual will serve as a subject matter expert on these projects, handling the technical design requirements necessary for treatment systems, and ensuring their efficiency, sustainability, and adherence to environmental regulations. The role involves applying advanced engineering techniques and analysis to develop effective solutions, as well as communicating effectively with stakeholders at all levels. Additionally, the position includes managing and providing technical leadership on wastewater treatment projects, which encompass process engineering, treatment facilities planning and design, and related infrastructure. The role will develop and assist with the preparation of statements of qualifications and proposals, interact with and be responsive to client’s needs. Primary Duties: Provide technical leadership to design consultants to complete detailed and permitted construction plans Provide technical leadership for design and optimization of water and wastewater treatment processes, including physical, chemical, and biological treatment systems. Lead the process design in feasibility studies and facility plans. Lead the development of calculations, drawings, and specifications for complex wastewater treatment upgrades. Support client service managers and business development efforts, serving as a technical subject matter expert at in-person and virtual meetings and project interviews. Participate in project pursuits and interviews, including developing treatment process innovations, technical approaches, and scope items. Develop scope and budget for new project opportunities. Provide guidance and mentorship to colleagues interested in water and wastewater treatment project work. Education and Experience Requirements: Bachelor’s degree in Engineering required Professional Engineer (PE) in Arizona 10 years of experience in water/wastewater treatment Why Ardurra? While Ardurra offers competitive compensation and rich benefits programs, it is our culture that truly sets us apart from our peers. We nurture a family-like culture, striving to create a work environment that is enjoyable, challenging and rewarding but also fun. We are acutely focused on developing our staff, whether through our internal Ardurra Academy or through our industry-leading Leadership program. We have made a deliberate and focused commitment to nurture a people-centric culture where people are: valued as individuals; supported in their professional and career development with multiple, varied career paths; provided the tools and resources to be successful, engaged, and satisfied in their work; and positive benefits, time-off programs, and flexibility to help maintain a healthy balance between work and home. Ardurra is an Equal Opportunity/ Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, gender identity or sexual orientation. NOTICE TO THIRD PARTY AGENCIES: Ardurra does not accept unsolicited resumes from recruiters or employment agencies. In the absence of a signed Agency Agreement, Ardurra will not consider or agree to payment of any referral compensation or recruiter fee. If a resume or candidate is submitted to any hiring manager without a previously signed agreement, Ardurra reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency. These candidates will be considered property of Ardurra. We’re not currently looking to add any more agencies to our list of approved vendors, so please do not contact any of our managers or recruitment team with sales calls or details of your candidates. LI-LC

Keywords: Ardurra Group, Inc., Phoenix , Senior Water/Wastewater Treatment Engineer, Engineering , Mesa, Arizona