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Mwh

Leading contractor delivering water and wastewater treatment and industrial water infrastructure projects.

2,200 employees

76 open positions

Water

Wastewater

Industrial

Energy

Capital Construction

Information Technology Services

Semiconductor Manufacturing

Municipal

Infrastructure

Design-Bid-Build

Construction Management at Risk (CMAR)

Design-Build

Laboratories

Cleanrooms

Fab and Subfab Spaces

Tool Installation

Ultra-Pure Water (UPW)

Acid Waste Neutralization (AWN)

Onsite Wastewater Treatment and Reuse

Thermal Hydrolysis Technology

Water Treatment

Wastewater Treatment

Semiconductor Wastewater Reuse Facilities

Industrial Water Construction

Municipal Water Construction

Digital Delivery

About Mwh

Revolutionizing clean water amid cholera outbreaks.

Operates nationwide in the U.S. with affiliates Slayden and Methuen.

Specializes in water, wastewater, industrial water, heavy civil, and broader infrastructure builds.

Constructed the world's largest ballasted

clarifier facility and tunneled miles for raw water conveyance.

Partners on major ventures like Texas’s Lake Travis system and San Francisco’s biosolids digesters.

Culture & Values

We act with honesty, transparency, and fairness in all our dealings.

We work together as one team to deliver exceptional results.

We strive to exceed expectations and deliver the highest quality.

We ensure a safe working environment for everyone, every day.

We embrace change and continuously seek out better ways to serve our clients and communities.

Quick Info

Company Size2,200 employees

Open Positions76 jobs available

IndustriesWater, Wastewater, Industrial +23 more

Visit Company Website

Key Highlights

Founded in 1820Innovations in clean waterThe company's origins trace back to innovations in clean water and sewage systems during cholera outbreaks.

Billion-dollar revenueFinancial scaleThe company operates at a financial scale supported by billion-dollar revenue and strategic investments from Oaktree Capital.

18 MGD capacityWater treatment plantsThe company builds state-of-the-art greenfield water treatment plants with capacities as high as 18 million gallons per day (MGD).

Net Zero by 2050Environmental GoalStriving for net zero emissions by the year 2050.

Open Positions

76 jobs available

Project EngineerSupport preconstruction and construction of water and wastewater treatment projects as a Project Engineer.

Experienced (8-12 years)

Senior CounselLegal counsel for construction projects, managing contracts, claims, and risk.

Office Full-Time

Expert & Leadership (13+ years)

Project EngineerSupport field and technical aspects of a $300M water pipeline project.

Intermediate (4-7 years)

Tunneling SuperintendentSupervise tunneling operations, safety, QA/QC, and schedule for a large water pipeline project.

Experienced (8-12 years)

Senior CAD TechnicianDraft topographic and construction survey plans using CAD software.

Intermediate (4-7 years)

Senior Project Manager (Water/Wastewater)Lead large-scale water/wastewater plant projects, manage teams, client relations, and growth.

Expert & Leadership (13+ years)

Quality Control EngineerEnsure construction quality and compliance for water/wastewater projects.

Intermediate (4-7 years)

Project Controls SpecialistManage cost control, scheduling, reporting for water treatment construction using CMiC

Experienced (8-12 years)

Quality Control EngineerEnsure construction quality compliance and manage quality systems for water/wastewater projects.

Intermediate (4-7 years)

Project Controls SpecialistManage cost control, scheduling, and reporting for large water treatment projects using CMiC.

Experienced (8-12 years)

Senior Claims ManagerOversee and resolve construction claims, manage risk, and coordinate legal matters.

Office Full-Time

Expert & Leadership (13+ years)

PipefitterInstall, maintain, and repair pipe systems for a water treatment plant

Experienced (8-12 years)

Senior Construction Claims AnalystAnalyze and resolve construction claims, prepare reports, support legal, 50% travel.

Expert & Leadership (13+ years)

Project EngineerSupport water treatment plant construction projects with engineering and project controls.

San Francisco, CA

Intermediate (4-7 years)

Assistant SuperintendentSupervise and coordinate heavy civil construction projects for water/wastewater

Experienced (8-12 years)

PipefitterInstall, assemble, and maintain pipe systems for a water treatment plant project.

Experienced (8-12 years)

Commissioning & Startup Engineer - MWHAssist in commissioning, startup, and documentation of wastewater treatment plant projects.

Intermediate (4-7 years)

Regional ManagerLead and grow CA water/wastewater projects, managing P&L, staff, and client relations.

Walnut Creek, CA

Expert & Leadership (13+ years)

Mechanical Superintendent - MWHOversee process mechanical installation and subcontractor coordination for a water treatment plant

Experienced (8-12 years)

Marketing InternAssist with social media content creation, scheduling, and marketing support.

Office Full-Time

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