Senior Project Manager (Water/Wastewater)

Company: MWH
Location: Phoenix
Posted on: February 18, 2026

Job Description:

Job Description Job Description MWH is a leading water and wastewater treatment-focused general contractor in the US with a rich history dating back to the 19th century. Fueled by the mission of Building a Better World , our teams are rapidly growing across the nation. As a company committed to our team's well-being and growth, we offer a supportive work environment, opportunities for advancement, and the chance to contribute to a mission that shapes the future. Your expertise and ambition are valued here. The work we do matters. The critical systems infrastructure we build changes lives, betters' communities, and improves ecosystems. If you're passionate about this, we want to hear from you! About the Role MWH is currently seeking a highly experienced and strategic Senior Project Manager to lead large-scale, critical water/wastewater treatment plant construction projects. Projects may be either integrated project delivery such as CM-at-Risk or Design-Build, or traditional Design-Bid-Build. The ideal candidate brings a deep understanding of project delivery, operations, and business development, functioning as a true seller-doer who can manage projects while building client relationships and contributing to the growth of our company. This role requires strong leadership, technical acumen, and a proven record of managing complex, multi-million dollar water infrastructure projects. Essential Functions Project Leadership Execution Lead the planning, execution, and close-out of large-scale water/wastewater treatment plant projects (typically $50M - $300M). Oversee project teams, including engineers, superintendents, field staff, and subcontractors, providing leadership and technical support. Monitor/control construction, investigating potentially serious situations and implementing corrective measures. Procure subcontractors and materials through purchase agreements and subcontracts. Ensure safety, quality, schedule, and budget goals are met or exceeded Proactively manage project risk, change orders, and claims, while protecting company interests. Ensure compliance with contract requirements, technical specifications, and applicable codes and standards. Work in a manner to ensure your personal safety and ensure that direct reporting employees follow safe work practices, using company guidelines and policies for planning and executing work in a safe manner. Assume additional responsibilities as directed by senior leadership. Client Stakeholder Management Serve as the primary point of contact for owners, engineers, and stakeholders. Foster and maintain long-term client relationships through consistent communication and performance. Act as a trusted advisor to clients, providing expertise on constructability, delivery methods, and project challenges. Lead or participate in partnering sessions, preconstruction planning meetings, and progress updates. Seller-Doer/Business Development Identify, pursue, and help secure new work in the water/wastewater market, with a focus on existing clients and target pursuits. Collaborate with marketing, estimating, and executive leadership on strategic pursuits and proposals. Participate in presentations, interviews, and industry events to represent the company and build brand visibility. Assist in developing annual business development goals and growth plans for assigned regions or markets. Financial Management Establish and maintain project budgets; monitor project costs and proactively implement corrective actions as needed. Collaborate with project accounting and finance teams on forecasts, cash flow, and cost control. Provide timely and accurate monthly reporting. Team Development Leadership Mentor and develop project staff; foster a high-performing, team-first culture. Conduct performance reviews and support professional development for assigned team members. Promote a collaborative environment across field and office teams, ensuring alignment and accountability. Basic Qualifications Bachelor’s Degree in Construction Management, Civil/Environmental Engineering, or related field; or equivalent experience and training/education. Minimum of 10 years of construction, design, finance and management experience/knowledge required on heavy civil or industrial construction projects. 5 years of experience on water or wastewater plant projects. Proven ability to lead construction projects; design-build and CMAR experience preferred. Strong understanding of w/ww systems, including process piping, concrete structures, implementation, mechanical equipment, installation, and startup/commissioning. Track record of successful client relationship management and business development. Demonstrated leadership of multidisciplinary teams, including self-perform and subcontracted work. Exceptional communication, negotiation, and presentation skills. Proficiency in project management software (e.g. CMiC, Procore, MS Project, or equivalent). Preferred Qualifications Safety oriented, OSHA training. Compensation The anticipated compensation for this position is $190,000-250,000/yr depending on previous experience. Benefits Group health & welfare benefits including options for medical, dental and vision 100% Company Paid Benefits: Employee Life Insurance & Accidental Death & Dismemberment (AD&D), Spouse and Dependent Life & AD&D, Short Term Disability (STD), Long Term Disability (LTD), Employee Assistance Program and Health Advocate Voluntary benefits at discounted group rates for accidents, critical illness, and hospital indemnity Flexible Time Off Program (includes vacation and personal time) Paid Sick and Safe Leave Paid Parental Leave Program 10 Paid Holidays 401(k) Plan (company matching contributions up to 4%). Employee Referral Program MWH Constructors is a global project delivery company in heavy civil construction with a focus on water and wastewater treatment infrastructure. With the ultimate goal of delivering maximum value to clients and their local communities, MWH Constructors provides single-source, integrated design and construction services through a full range of project delivery methods. Incorporating industry-leading preconstruction and construction services, the Company’s multi-disciplined team of engineering and construction professionals delivers a wide range of projects, including new facilities, infrastructure improvement and expansion, and capital construction services. Equal Opportunity Employer, including disabled and veterans. Please note that all positions require pre-employment screening, including drug and background check, as a condition of employment. LI-JB1 LI-Onsite

Keywords: MWH, Scottsdale , Senior Project Manager (Water/Wastewater), Construction , Phoenix, Arizona