Senior Project Manager - MWH

Current job opportunities are posted here as they become available.

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!

MWH is currently seeking a highly experienced and strategic Senior Project Manager to lead large‑scale, critical water/wastewater treatment plant construction projects in the Seattle, WA area. 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.

• 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.

• 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.

• 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.
• 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.
• 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.

• The anticipated compensation for this position is $,000/yr depending on previous experience.

• Bachelor’s Degree in Construction Management, Civil/Environmental Engineering, or related field; or equivalent experience…