Senior Water/Wastewater Project Manager

Arcadis•Blue Ash, OH

3d•$110,000 - $150,000•Onsite

About The Position

Arcadis is seeking an experienced Water/Wastewater Project Manager to join its Water Business Line in St. Louis, Missouri. This strategic seller/doer leadership role focuses on growing and delivering municipal water, wastewater, and stormwater projects in the St. Louis metropolitan region and surrounding Midwest markets. The position combines Project Manager and Client Manager responsibilities, leading multidisciplinary teams through planning, design, and construction of complex water and wastewater infrastructure projects. The successful candidate will bring technical expertise across treatment facilities, collection and distribution systems, stormwater management, pumping stations, and biosolids processing, while advancing business development, client engagement, and market growth. The role offers the opportunity to lead major capital improvement projects, strengthen municipal client relationships, mentor technical staff, and help expand Arcadis' presence in the St. Louis water market. The Project Manager is responsible for project scope, schedule, budget, quality, and delivery performance, and ensures work meets client requirements, regulatory standards, and Arcadis quality and safety practices. Travel is required as needed for client meetings, project workshops, site visits, construction oversight, and business development activities.

Requirements

Bachelor's degree in Civil, Environmental, Mechanical, Chemical Engineering, or a related engineering discipline.
Professional Engineer (PE) license in Missouri or ability to obtain Missouri licensure through reciprocity.
At least 10 years of water/wastewater engineering experience, including planning, design, and construction support for municipal infrastructure projects.
At least 5 years of project management experience leading multidisciplinary water, wastewater, and/or stormwater projects.
Strong seller/doer mindset and a passion for growing client relationships and winning new work.
Experience managing project scope, budgets, schedules, and technical delivery.
Experience developing construction documents, including plans, specifications, technical reports, and cost estimates.
Strong communication, client management, and team leadership skills.
Technical excellence across water, wastewater, and stormwater infrastructure.
Strategic leadership and business acumen, with the ability to manage multiple priorities and complex projects simultaneously.
Collaborative team leadership and mentorship abilities.
Excellent verbal, written, and presentation skills.
Commitment to quality, safety, and client success.

Nice To Haves

15 or more years of experience delivering municipal water, wastewater, and stormwater infrastructure projects.
Experience as a client-facing project manager and account manager for municipal clients.
Technical expertise in wastewater treatment facilities, pumping systems, biological treatment processes, biosolids planning and processing, and conveyance systems.
Experience managing large capital improvement programs and treatment plant projects with construction values exceeding $20 million.
Established relationships with municipalities, utilities, and public agencies in the St. Louis metropolitan area and surrounding region.
Proven success in business development, client account management, proposal development, and pursuit leadership.
Experience supervising multidisciplinary engineering teams and mentoring junior staff.
Active participation in professional organizations such as AWWA, WEF, MWEA, APWA, or similar industry associations.

Responsibilities

Lead and manage the planning, design, and construction administration of municipal water, wastewater, and stormwater projects.
Manage project scope, schedule, budget, quality, and overall delivery performance as a client-facing Project Manager.
Lead engineering evaluations, feasibility studies, modeling, process analyses, and design efforts for water distribution, wastewater collection, stormwater infrastructure, pumping facilities, treatment plants, and biosolids systems.
Direct the preparation and review of engineering calculations, reports, technical memoranda, plans, specifications, and cost estimates.
Provide technical leadership as a design lead, QA/QC reviewer, or subject matter expert on multidisciplinary projects.
Coordinate project teams, subconsultants, and technical staff; mentor developing engineers and support their professional growth.
Support construction-phase services, including construction administration, equipment startup, commissioning, and coordination with contractors and owners.
Build and maintain relationships with municipal clients and key stakeholders, identify opportunities to expand services, and develop new business.
Lead proposal development, including pursuit strategy, client presentations, scope development, staffing plans, schedules, and fee estimates.
Collaborate with regional leadership to increase Arcadis' visibility and market presence in Missouri and surrounding areas.
Participate in professional organizations, industry conferences, and technical committees through presentations, publications, and networking.
Travel as needed for client meetings, project workshops, site visits, construction oversight, and business development activities.