Water Treatment Engineer jobs in City of Saint Louis, MO

About the Client Our client is a leading water treatment company supporting industrial and institutional customers across the Midwest. They design and deliver programmes for boilers, cooling towers, closed loops, and wastewater systems, combining best‑in‑class chemistry with reliable on‑site technical support to drive asset protection, safety, and regulatory compliance. Position: Area...

Salary: %2454,860 - %2466,534Position Grade:%3Co:p%3EDepartment: Water Division%3Co:p%3EJob Type: Full-Time (Permanent)%3Co:p%3EExamination Number:Location: Water Division - St. Louis, MO%2466,534%2466,534Essential Functions and Responsibilities:%3Co:p%3EKnowledge, Skills, and Abilities:%3Co:p%3EOther Requirements:●Salary: %2454,860 - %2466,534Position Grade:%3Co:p%3EDepartment: Water...

As global supply and demand for water intensifies, solving the world's most complex water challenges demands different thinking - and that's where we come in. We're seeking a Water Treatment/Pumping Project Manager to join our mid-Atlantic and East Central region. Someone who can use their vast experience in the water industry and apply it to today's challenges. As a valued Jacobs employee, you...

Title: Water Treatment Plant Operator Location: St Louis MO Duration: Full Time Qualifications Desirable to possess a Class A, B, C, or D Public Drinking Water Treatment System Operator certification issued by the Missouri Department of Natural Resources. Candidates with drinking water treatment certifications through other states who are eligible for reciprocity will be considered. General...

Civil Engineer - WaterDate: Nov 6, 2025Location:Creve Coeur, MO, USCompany: Black & Veatch Family of CompaniesTogether, we own our company, our future, and our shared success.As an employee-owned company, our people are Black & Veatch. We put them at the center of everything we do and empower them to grow, explore new possibilities and use their diverse talents and perspectives to solve...

This position offers an exciting opportunity for the selected candidate to be part of a firm with national water/wastewater expertise in a small company environment. We are seeking an engineer that has experience working with clients to provide planning, design, construction, and operational services for wastewater and/or water systems. You will work closely with clients and Donohue project team...

Together, we own our company, our future, and our shared success.As an employee-owned company, our people are Black & Veatch. We put them at the center of everything we do and empower them to grow, explore new possibilities and use their diverse talents and perspectives to solve humanity's biggest challenges in an ever-evolving world. With over 100 years of innovation in sustainable...

Project Engineer III/IV - Water/Wastewater Department: Water/Wastewater Employment Type: Full Time Location: St. Louis, MO Reporting To: Barry Grant Description Gonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and...

The importance of water to the health of our world can't be overstated!As the frequency and intensity of floods, droughts and storms increases, the water industry must continue to build resiliency and lead from the front.Together with our clients, we are thinking and doing things differently to help pre-empt and prepare for what's next. Be a part of this dynamic and committed team of diverse...

Hanson ValuesIntegrity | Commitment | Quality | Relationships | InnovationIf you're looking for a firm that encourages innovative thinking and challenges you every day, with an opportunity to learn and advance, a career at Hanson is right for you. The belief in sustainability within our company's practices creates a focus on client success and partnerships that are important to our communities...

Job Description Water Resources Engineer We are seeking a highly skilled and experienced Water Resources Engineer to join our dynamic team in the St. Louis area with pay starting at 115K. The ideal candidate will play a crucial role in managing water resources projects and ensuring compliance with environmental regulations. - Conduct hydrologic and hydraulic modeling - Design stormwater...

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Senior Project Engineer V/VI - Water/WastewaterDepartment: TransportationEmployment Type: Full TimeLocation: St. Louis, MOReporting To: Barry GrantDescriptionGonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. We are...

A leading water treatment company is seeking an Area Manager to oversee operations across Missouri and additional territories. This role requires extensive experience in industrial water treatment and strong leadership abilities. The successful candidate will drive growth through technical expertise, sales development, and team management. Join us in ensuring safety and compliance while...

Project Engineering Manager - Water/WastewaterDate: Nov 7, 2025Location:Creve Coeur, MO, USCompany: Black & Veatch Family of CompaniesTogether, we own our company, our future, and our shared success.As an employee-owned company, our people are Black & Veatch. We put them at the center of everything we do and empower them to grow, explore new possibilities and use their diverse talents and...

Together, we own our company, our future, and our shared success.As an employee-owned company, our people are Black & Veatch. We put them at the center of everything we do and empower them to grow, explore new possibilities and use their diverse talents and perspectives to solve humanity's biggest challenges in an ever-evolving world. With over 100 years of innovation in sustainable...

Graduate Engineer, Civil - Water - St. LouisDate: Nov 5, 2025Location:Creve Coeur, MO, USCompany: Black & Veatch Family of CompaniesTogether, we own our company, our future, and our shared success.As an employee-owned company, our people are Black & Veatch. We put them at the center of everything we do and empower them to grow, explore new possibilities and use their diverse talents and...

Together, we own our company, our future, and our shared success.As an employee-owned company, our people are Black & Veatch. We put them at the center of everything we do and empower them to grow, explore new possibilities and use their diverse talents and perspectives to solve humanity's biggest challenges in an ever-evolving world. With over 100 years of innovation in sustainable...

Salary:%2468,796 - %24114,322Position Grade:%3Co:p%3EDepartment: Water Division%3Co:p%3EJob Type: Full-Time (Permanent)%3Co:p%3EExamination Number:Location: Water Division - St. Louis, MOEssential Functions and Responsibilities:%3Co:p%3EKnowledge, Skills, and Abilities:%3Co:p%3EData Utilization: Requires the ability to perform mid to upper-level data analysis including the ability to coordinate,...

Project Engineer I/II - Water/WastewaterDepartment: Water/WastewaterEmployment Type: Full TimeLocation: St. Louis, MOReporting To: Barry GrantDescriptionGonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. We are...